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Trelleborg Portfolio

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Trelleborg offers a variety of polymer solutions for protecting offshore equipment such as seismic, drilling, subsea, and topside operations.

Trelleborg offers the Vor, Magni, Njord, and Odin product lines to protect seismic, drilling, subsea, and topside equipment respectively.

Trelleborg's Odin products are used for jacket installation, skirt sleeves, and grouting operations for offshore platforms and wind farms.

TRELLEBORG OFFSHORE

Performance
at every level
Oil & Gas, Products and Solutions
Offshore
segments

Seismic operations​ Vor


protected by The Wise Choice

The problems posed in protecting precious equipment in the seismic industry demand only the smartest
answers.​

Vor by Trelleborg is a unique series of polymer solutions engineered with care to provide the most intelligent
ways to ensure that your operations are not interrupted by equipment failures.

Drilling and downhole


operations
Magni
protected by The Strong Choice

​ rotecting vital equipment in the drilling industry, such as ensuring buoyancy of the drill riser, demands
P
engineering of exceptional strength and stability.​

​ agni by Trelleborg is a unique series of polymer solutions engineered with the extraordinary resilience
M
required to protect drilling and downhole equipment in the most demanding and remote conditions on
earth.​

2 I TRELLEBORG OFFSHORE
Subsea operations​ Njord
protected by The Experienced Choice

Protecting highly inaccessible subsea equipment demands deep understanding of the ocean environment
and the engineering challenges of operating subsea and at depth.​

Njord by Trelleborg is a unique series of polymer solutions engineered with decades of offshore industry
insight to provide flexibility, buoyancy and protection solutions to the toughest subsea challenges.

Topside operations​ Odin


protected by The Intelligent Choice

From passive fire protection to floatover solutions, protecting your topside productivity takes a deep well of
engineering and industry know-how.​

​ din by Trelleborg offers unique polymer solutions engineered with the depth and breadth of knowledge
O
that only decades of industry-leading success in the offshore world can provide.​

Surface operations​ Thor


protected by The Trusted Choice

When you invest in essential surface equipment like surface floatation and impact protection, you need
resilience and reliability you can believe in.

Thor by Trelleborg is a unique series of polymer solutions for surface protection, that are built with such
strength and durability, you know they will never let you down.

TRELLEBORG OFFSHORE I 3
Index.......................[ page]

Vor ----------------------------------------------------------------------------------------------[ 7 ]--------------------------------


Vor BS (Bend stiffener)......[ 8 ]
Vor Cumberland......[ 10 ]
Vor Towing......[ 12 ]

Magni -----------------------------------------------------------------------------------------[ 14 ]-----------------------------


Magni Buoyancy
Magni DRBM (Drill Riser Buoyancy Module)......[ 15 ]
Magni DRBM HG (Helical Grooved)...... [ 17 ]
Magni CFW (Crushable Foam Wrap)...... [ 19 ]
Magni Solutions
Magni RG (Riser Guard)......[ 21 ]

Njord ------------------------------------------------------------------------------------------[ 23 ]-----------------------------


Njord Buoyancy
Njord DBM (Distributed Buoyancy Module)......[ 24 ]
Njord RBM (Rotating Buoyancy Module)......[ 26 ]
Njord SBM (Standardized Buoyancy Module)......[ 28 ]
Njord Trimsyn and Njord Trimlok......[ 30 ]
Njord NB (Nano Buoyancy)......[ 32 ]
Njord EB (Ellipsoidal Buoyancy) and Njord SB (Spherical Buoyancy)......[ 34 ]
Njord Clamp
Njord APBS (Piggyback System)......[ 36 ]
Njord Guide
Njord C (centralizer)......[ 38 ]
Njord J-Tube S (Seals)......[ 40 ]
Njord Protection
Njord BR (Bend-Restrictor)......[ 42 ]
Njord BS (Bend Stiffener)......[ 44 ]
Njord Polymat......[ 46 ]
Njord Polyspace......[ 48 ]
Uraduct® ......[ 50 ]
Uraduct® Buoyant......[ 52 ]
Tri-Strakes® C (Combi)......[ 54 ]
Tri-Strakes® L (Lite)......[ 56 ]
Tri-Strakes® S (Stinger)......[ 58 ]
Njord Thermal Insulation
Vikotherm® G3......[ 60 ]
Vikotherm® P7......[ 62 ]
Vikotherm® PP......[ 64 ]

4 I TRELLEBORG OFFSHORE
Vikotherm® PT......[ 66 ]
Vikotherm® R2......[ 68 ]
Vikotherm® R2A......[ 70 ]
Vikotherm® S1......[ 72 ]
Odin and Njord MPU (Mobile Production Unit)......[ 74 ]

Odin --------------------------------------------------------------------------------------------[ 76 ]------------------------------


Odin Flexible Piping System
Elastopipe ™ ......[ 77 ]
Odin Passive Fire Protection
Odin DG (Drain Gully)......[ 79 ]
Odin Escape Tunnel-Seal......[ 81 ]
Odin Firestop......[ 83 ]
Odin Linear Seal......[ 85 ]
Odin R (Riser PFP)......[ 87 ]
Odin Radial Seal......[ 89 ]
Odin Vikodeck™ ......[ 91 ]
FireNut......[ 93 ]
Odin Bearings
Odin MB (Module Bearings for FPSO and FLNG)......[ 95 ]
Odin Protection
Odin CP (Corrosion Protection) ......[ 97 ]
Odin EBR (Eccentric Bumper Ring)......[ 99 ]
Odin FP (Fender Post)......[ 101 ]
Odin RCC (Riser Clamp Coating)......[ 103 ]
Odin RP (Riser Pipe Coating)......[ 105 ]
Odin RS (Rub Strips)......[ 107 ]
Odin SC (Shock cell)......[ 109 ]
Odin Floatover
Odin DSU (Deck Support Unit)......[ 110 ]
Odin LMU (Leg Mating Unit) ......[ 112 ]
Odin SSF (Sway and Surge Fenders)......[ 114 ]
Odin Jacket
Odin DC (Diaphragm Closure)......[ 116 ]
Odin GS (Grout Seal)......[ 118 ]
Odin SPG (Skirt PIle Gripper)......[ 120 ]
Odin GP (Grout Packer)......[ 122 ]

Thor ---------------------------------------------------------------------------------------------[ 123 ]---------------------------

TRELLEBORG OFFSHORE I 5
Core Capabilities Expertise

Trelleborg is a world leader in engineered polymer Always keen to share our vast knowledge and
solutions that seal, damp and protect critical application expertise with customers to help them
applications in demanding environments. Its accelerate their performance, now and in the
innovative engineered solutions accelerate future,we offer comprehensive engineering support
performance for customers in a sustainable way. from conception to completion of every project. This
Using advanced polymer material technology, includes the training of customers on the
Trelleborg Offshore provides high integrity solutions capabilities of Trelleborg’s portfolio of polymer
for the harshest offshore environments. Trelleborg solutions and engineering support throughout
Offshore specializes in the development and a customers’ bid for a project (however large or
production of polymers and syntactic foam, for small). In addition to providing expertise in polymer
all levels of the offshore industry. Our goal is to solutions for every kind of offshore application, we
perform at every level to deliver innovative control the whole supply chain including design,
and reliable offshore solutions that maximize manufacture, testing and installation to ensure the
business performance to meet your needs. delivery of what you need, when you need it.

Innovation

With a long-standing commitment to the development of innovative polymer and syntactic foam-based solutions,
Trelleborg Offshore provides superior engineered solutions serving the harshest and most demanding offshore
applications. Trelleborg Offshore specializes in the development and production of polymer and syntactic foam
based seismic, marine,buoyancy, cable protection, thermal insulation and rubber-based fire protection solutions
for the offshore industry. Highlighting our commitment to R&D activity, Trelleborg Offshore carries out research
development programs in partnership with industry bodies such as SINTEF and collaborates with several schools,
colleges and universities providing research and degree project assistance. Thanks to our industry leading R&D
activity,Trelleborg Offshore is widely considered the supplier of choice for many key industry OEMs, contractors
and operators.

Trelleborg is a world-leader
in engineered polymer solutions

6 I TRELLEBORG OFFSHORE
Vor
The Wise Choice

The problems posed in protecting precious Vor Stiffener - Where any flexible tubular connects
equipment in the seismic industry demand only to a structure, normal movement during operation
the smartest answers. Vor by Trelleborg is a unique or forces incurred during installation can cause
series of polymer solutions engineered with care catastrophic failure of the tubular at the termination
to provide the most intelligent ways to ensure that point. Our seismic bend control solutions reduce
your operations are not interrupted by equipment this damage.
failures.
Vor Cumberland - Seismic towed arrays are
carefully designed to maximize survey efficiency.
To enable the towed array to be set up correctly, it
is necessary to attach various buoys,cross chains
etc. To ensure the integrity of the towed array, these
connection points must provide a secure and safe
method of attachment.

Vor Towing - Seismic towed arrays undergo


significant loading during operation. The towing
forces from the vessel combine with drag from
the sea and lateral loads from diverter and cross
chains. These complex loads need to be correctly
controlled to ensure that the seismic array operates
correctly.

TRELLEBORG OFFSHORE I 7
Vor BS (Bend Stiffener)

Protecting seismic
survey cables

Where any cable or hose connects to a structure, at the termination point.Manufactured from
normal movement during operation (dynamic elastomeric material, a bend stiffener is suited to
loading) or forces incurred during installation and the constant wave and current induced motion of
retrieval (static loading) can cause catastrophic dynamic installations but can also be used for static
failure of the cable or hose, at the termination applications.
point. The failure mode can be through collapse,
rupture of internal lines or even rupture of the Vor BS are project specific and fully engineered
external layers leading to escape of the contents to accommodate the defined tension and angle
to the environment.This can happen as the result of combinations as Trelleborg Offshore strive to
a single event or be caused through fatigue damage perform at every level to meet the customers’
over time. needs. The two types of Bend Stiffeners are split
and non-split bend stiffeners.These are offered
Bend limiting devices are provided to protect the in a variety of attachment methods, such as
cable or hose from these situations and perform brackets,flanges & slide-on.
the following functions:

• Maintain the manufacturers recommended


minimum bend radius (MBR) during the life
of the project
• Provide a suitable load path from cable or Vor GABS (Gun Array Bend Stiffener) and
hose, to fixed structure Vor SS (Split Stiffener)
• Reduce point loading at the termination to
an acceptable level

Vor BS (Bend Stiffener)

Vor BS acquired its name because the conical


shape gradually increases the overall stiffness of
the cable or hose in order to prevent over bending

8 I TRELLEBORG OFFSHORE
Examples and benefits of some of these are below: Information needed to specify a Vor BS:

Vor SS (Split Stiffener) Cable Properties:

• Fully split to allow bolt-on installation after • Cable diameter and tolerances
termination • Minimum bend radius in Static (storage) and
• Completely field installable and replaceable Dynamic (deployed) configurations
• Improved resistance to general wear and tear • Cable bend stiffness
in offshore operations
• Customizable mounts Duty:
• Adaptable to a number of towing attachment
assemblies • Actual tension and angle combinations
• Fully spoolable • On deck handling cases
• Will system be spooled or not
Vor AHS (Air Hose Stiffener) • Deployment Scenario with full schematic drawing

• Slide on design Interface Design:


• Attached via band strap
• Profiled internal interface detail • Material preference
• Simple attachment method, no termination • Protective coating if required
machining required • Size restrictions
• Cost effective solution for small air hoses

Vor DS (Dynamic Stiffener)

• Provides localized stiffness to the cable or


umbilical to maintain minimum bend radius.
• Customizable mounts
Vor AHS (Air Hose Stiffener)
• Adaptable to a number of towing attachment
assemblies
• Customized design to meet customer load
and angle combinations

Vor DS (Dynamic Stiffener)

TRELLEBORG OFFSHORE I 9
Vor Cumberland (Cable Handling)

Safe deployment
of cables
Seismic towed arrays are carefully designed to Vor CG (Cumberland Grip)
maximize survey efficiency. To enable the towed
array to be set up correctly, it is necessary to The Vor CG (Cumberland Grip) is generally used on
attach various buoys, cross chains etc. To ensure seismic survey towed cables or as an ocean bottom
the integrity of the towed array, these connection cable system for anchor weight attachment.
points must provide a secure and safe method of
attachment. • Safe attachment of moderate load diverters
and tow points to armored or sheathed cables
Trelleborg Offshore designs and manufactures • Integrated friction grip clamp and bend
specialist cable handling solutions to meet the stiffeners to control cable curvature
exacting demands of marine seismic customers. • Provides uniform grip over entire length
Using our expertise in understanding the • Fully split to allow easy attachment
difficulties associated with working in such • Fully spoolable with yoke removed
demanding conditions, our seismic cable handling
solutions ensure the safe management and
deployment of cables.

The cable handling solution range includes Vor CG


(Cumberland Grip), Vor SB (super Boot) and Vor CS
(Cumberland Slider) to meet your needs.

Vor CG (Cumberland Grip)

10 I TRELLEBORG OFFSHORE
Vor CS (Cumberland Slider) Vor SB (Super Boot)

The Vor CS (Cumberland Slider) stabilizes large The Vor SB is generally used on a seismic lead-in
multi cable towed array systems during turning and cable that must be linked at intervals to a parallel
alignment maneuvers. tow wire. It can also be used for protection of
cables when floats are attached at certain points
• Easy movement over cable with clearance bore along a heavy tow cable.
• Provides cable protection under sliding conditions
• Sacrificial tip wear pad inserts Benefits of Vor SB include:
• Fully spoolable with yoke removed
• Safe coupling for sheathed or armored cables at
mid-length
• Integrated friction grip clamp and bend
stiffeners to control cable curvature
• Protection against over bending and chafing
• Fully spoolable with bridle and yoke removed

Vor CS

Vor SB

TRELLEBORG OFFSHORE I 11
Vor Towing

Protecting seismic
survey cables

Seismic towed arrays undergo significant loading Vor MBW (Multiple Ballast Weight
during operation. The towing forces from the Assembly)
vessel combine with drag from the sea and lateral
loads from diverter and cross chains. These The Vor MBW (Multiple Ballast Weight Assembly)
complex loads need to be correctly controlled to provides a secure and easy to handle ballast
ensure that the seismic array operates correctly. for attachment to Lead-in cables. Typical ballast
weights are 75kg, 100 kg and 150 kg, although
Using our expertise in understanding the difficulties ballast weights can be tailored to your needs.
associated with working in demanding conditions,
our towing attachments and ancillaries help protect • Secure attachment to lead-in cable
the seismic survey cables from over bending and • Integral bend stiffeners ensure load is spread
to increase the local stiffness of cables at the over the length of the unit
attachment point. • Lead-free ballast solution Information needed to
specify Vor MBW
Vor HR (Helical Rod) • Cable diameter and tolerances
• Cable outer jacket material
The Vor HR (Helical Rod) System is a robust set
of helically twisted wires, supplied with end caps
so that no sharp edges are present on the outer
surface of the cable.
Vor HR System
• Localized abrasion resistance to cable
• Increased grip capacity by spreading the
load over a greater area of cable
Vor MBW
• Superior grip capacity at connection point
when used in conjunction with Vor UTPP
(Umbilical Tow Point Protector)

12 I TRELLEBORG OFFSHORE
Vor LB (Lead-in Bend Assembly) Vor UTPP (Umbilical Tow Point Protector)

The Vor LB (Lead-in Bend Assembly) is used as The Vor UTPP (Umbilical Tow Point Protector) is
an attachment point on seismic survey cables for specifically designed to aid attachment of a tow
towing applications. The assembly protects the point to the gun umbilical.
cable from over bending by increasing the local
stiffness of the cable at the attachment point. A Vor • Helical rods to ensure integrity of the gun
LB allows for assembly over a pre-terminated cable umbilical
and is generally used on seismic survey lead-in • Helical rods and olive arrangement ensure
cables to attachment towing chains, paravane type that the tow point has significant grip capacity
diverters or flotation.
Vor CM (Connector Mounted Assemblies)
• Oversized bore bend stiffener with color coded
packers to suite numerous cable sizes The Vor CM (Connector Mounted Assemblies) is
• Allows for assembly over pre-terminated cable designed for mounting onto the Lead-in or Streamer
• High grip capacity on the lead-in cable Connector and meets the different protection
• Ideal attachments for diverter and tether head requirements.

• Principle application as per lead-in assembly


• Internal clamp profile to suite termination
• Full cable strength attachment point

Vor LB

Vor CM

Vor UTPP

TRELLEBORG OFFSHORE I 13
Magni
The Strong Choice

Protecting vital equipment in the drilling industry, Magni Buoyancy - The drill riser provides a conduit
such as ensuring buoyancy of the drill riser, for the drill string and drilling fluids from the
demands engineering of exceptional strength and ocean floor to the rig. This has significant weight
stability. Magni by Trelleborg is a unique series of which must be supported by its own structure and
polymer solutions engineered with the extraordinary ultimately by the drilling vessel.In order to reduce
resilience required to protect drilling and downhole this weight in water to a more manageable amount,
equipment in the most demanding and remote discrete buoyancy units are fitted along the length
conditions on earth. of the riser.

Magni Solutions - Magni Solutions are designed


to complement Magni Buoyancy so that there is
a comprehensive level of support while ensuring
seamless installation of riser systems.

Magni Crushable Foam Wrap - Designed to be


installed around the inner drill casing which is then
immersed within the annulus fluid. As the pressure
of the annulus fluid increases, the Crushable Foam
Wrap will collapse at a predetermined pressure/
temperature combination, allowing expansion of
the annulus fluid and dispersing any potentially
destructive pressure increases.

14 I TRELLEBORG OFFSHORE
Magni DRBM SG (Drill Riser Buoyancy Module -
Standard Geometry)

Drilling and syntactic


products
In offshore drilling operations, the drill riser a damaged buoyancy element can be safely
provides a conduit for the drill string from the ocean recovered and repaired and also provides a
floor to the rig. However, this adds significant weight significant increase in mechanical strength to
which must be supported by its own structure and ensure robust and reliable performance.
ultimately by the drilling vessel.Reducing overall
weight in water to a manageable amount is critical
in expanding exploration and resource recovery to
ultra deepwater fields.

Trelleborg Offshore offers Magni DRBM SG (Drill


Riser Buoyancy Module - Standard Geometry) to
safely overcome these operational challenges.
Magni DRBM SG is fitted along the length of the
riser to reduce the weight of the drilling riser to a
manageable level. We work with our customer at all
stages of the project life cycle to ensure all project
requirements are met or exceeded.

Magni DRBM SG operates in the harshest


of marine environments. These challenging
conditions can have a detrimental effect on
Drill Riser Buoyancy resulting in cracked or
broken buoyancy elements. To safely mitigate
these hazardous conditions, Trelleborg Offshore
developed the Ultra M.I.S. (Module Integrity
System) range of Magni DRBM SG. The Ultra
M.I.S. system is a safety system which ensures

TRELLEBORG OFFSHORE I 15
Benefits:

• Enhanced safety – Ultra M.I.S.


• Increased mechanical strength
• Optimized uplift

To provide you with performance at every level, we offer a wide range of riser ancillaries designed to complement
our Magni DRBM SG. These include Magni RG (RiserGuard), Magni RS (Riser Shims), Magni SC (Stop Collars),
Magni RH (Replacement Hardware),Magni G (Grommets).

16 I TRELLEBORG OFFSHORE
Magni DRBM HG (Helically Grooved Drill Riser
Buoyancy Module)

Drill riser buoyancy


VIV suppression
Magni DRBM HG (Helically Grooved Drill Riser riser motions due to VIV limit the number and
Buoyancy Module ) is the result of a joint magnitude of strain cycles transferred to subsea
development between Trelleborg Offshore and equipment, in turn, decreasing fatigue loading
Diamond Offshore Drilling to integrate and extending the service life of wellhead and
vortexinduced vibration (VIV) suppression and drag conductor/casing equipment.
reduction with drill riser buoyancy, increasing
rig efficiency without compromising on safety or
structural integrity.

Magni DRBM HG design dimensions


are optimized to ensure uncompromised uplift
while effectively eliminating riser motions and
higher levels of drag in onerous offshore current
environments compared to traditional riser
buoyancy. The minimal removal of material
associated with the grooves corresponds to
only a 2-3% buoyancy loss, which can easily be
recovered through the manufacturing process by Joint handling times and running methodologies
selecting lower density materials. during riser deployment and retrieval are
equivalent between Magni DRBM HG and
The new multi-functional design integrates VIV traditional buoyancy designs, resulting in increased
suppression and drag reduction technology personnel safety, higher efficiency and a more
into DRBM equipment from the time of robust solution compared to traditional VIV
manufacturing eliminating the requirement of mitigation equipment.
ancillary suppression equipment, alleviating
complicated and time intensive riser running and
retrieval procedures. In addition, reductions in

TRELLEBORG OFFSHORE I 17
Applications: Benefits:

• Marine Drilling Risers • Expanded connected riser drilling & non-drilling


• Intervention Risers operating envelopes
• Jumpers • Increased vessel transiting speeds with a drilling
• Long Pipeline Spans riser deployed
• Production Risers • Decreased riser and BOP excursion after
• Umbilicals disconnect
• Flow Lines • Increased maximum allowable current conditions
• Power Cables for riser deployment, retrieval, and hang-off
operations
• Increased fatigue lives for the drilling riser and
subsea equipment
• Increased Personnel safety during riser
deployment and retrieval over other ancillary VIV
mitigation equipment
• Simplified riser running procedures
• Decreased demand on vessel station keeping
propulsion systems

18 I TRELLEBORG OFFSHORE
Magni CFW (Crushable Foam Wrap)

Preventing
excessive pressure
When subsea wells are completed, liquid becomes Magni CFW from Trelleborg Offshore is a rigid
trapped at fairly low temperatures between the polymeric material which has a closed cell foam
outer wall of one casing string and the inner micro structure allowing for collapse of the foam
wall of another – in the casing annulus. Heat within a specified temperature and pressure band
generated during production operations can cause as dictated by the expected well conditions.
the trapped fluids to expand and potentially create
pressures in excess of 10,000 psi. In the start-up phase, the materials remain intact,
with no significant volume change. If conditions
If not managed, annular pressure build-up (APB) reach certain preset limits the syntactic foam
induced loads can compromise well integrity undergoes a progressive and significant collapse,
during production, either by collapsing the inner preventing excessive overpressure and thus
casing or bursting the outer one. protecting the steel casing.

The most effective mitigation solution for APB is


to allow the fluid trapped within the casing annulus
to expand, when critical pressure levels are
reached. Magni CFW (Crushable Foam Wrap)
from Trelleborg Offshore is installed in the
trapped annulus during well construction and
it is designed to collapse before any potentially
dangerous pressure occurs,allowing the trapped
fluid to expand. Trelleborg offer a wide range of
syntactic foam grades,available to fit a variety of
annular geometries,to cater for the protection of all
wells,in virtually any combination of temperature
and pressure.Magni CFW is a proven engineered
solution for APB mitigation with more than 20 years
of successful application for the major operators in
the O&G industry.

TRELLEBORG OFFSHORE I 19
Benefits:

• Easy to handle and install, chemically inert marial Magni CFW installed projects
• Onsite installation available Operator Name of the Field Location
• Honeycomb microstructure allows collapse of the BP Machar I, II, III North Sea
foam to take place and remain intact
BP Mad Dog Gulf of Mexico
• May be placed anywhere within the trapped
Shell Ram Powell Gulf of Mexico
annulus
Total Akpo West Africa
• Allows easy circulation of drilling fluids
Tullow oil TEN Ghana
• Collapse after the maximum operating temperture
is reached Repsol BM – C33 Brazil

• Reduced risk of cracking Weatherford Eni North Sea

• Proven track record

20 I TRELLEBORG OFFSHORE
Magni RG (RiserGuard)

Bare riser
protection systems

In offshore drilling operations, the drill riser efficiently store various types of riser joints while
provides a conduit for the drill string from the preserving valuable deck space.
ocean floor to the rig. However, the bare drilling
riser (riser which does not have Magni DRBM (Drill
Riser Buoyancy Module) installed) also requires
protection. Replacing traditional metallic solutions
for protection of risers with a composite based
modular design increases performance by weight
reduction and improves safety during handling,
storage and drilling operations.

Magni RG (RiserGuard) provides complete


protection of bare riser joints and external lines
during handling, storage, and drilling operations.
They are specifically designed to protect the
drilling riser from impact damage when running or
retrieving through the moon pool area, or during
handling operations in the riser storage bay.

Magni SRG (Stackable RiserGuard)

Magni SRG (Stackable RiserGuard) is a solution for


rigs with limited storage space and allows stacking
of various types of riser joints. It provides the same
protection and handling characteristics as standard
Magni RG while adding strategically spaced
molded polyurethane sections between Magni RG
which transfers the load between bare joints and
deck storage area. This provides the capability to

TRELLEBORG OFFSHORE I 21
Magni RS (Riser Shim) Benefits:

Magni RS (Riser Shim) support bare joints in • Complete protection of bare riser
critical areas of the riser joint. They are installed joint and external lines
at intervals on the riser joint and constructed to • Same OD & geometry as buoyancy
the same external configuration as the buoyancy, • Light weight material (neutrally
facilitating the stacking of bare joints. Magni RS buoyant/free flooding in seawater)
do not provide full joint protection but offer an • Excellent abrasion and impact resistance
economic protective solution. • Stackable

To provide you with performance at every level, we


offer a wide range of riser ancillaries designed to
complement our Magni Solutions. These includes
Magni SC (Stop Collars), Installation Hardware,
Magni G (Grommets) & Polykap protectors.

22 I TRELLEBORG OFFSHORE
Njord
The Experienced Choice

Protecting highly inaccessible subsea equipment Njord Clamp - A pipeline laying operation may
demands deep understanding of the ocean have a requirement to simultaneously lay a
environment and the engineering challenges small diameter service line or umbilical. During
of operating subsea and at depth. Njord by the installation, to ensure that the secondary
Trelleborg is a unique series of polymer solutions lines are adequately supported between surface
engineered with decades of offshore industry and seabed, they may be attached to the main
insight to provide flexibility, buoyancy and pipeline using a clamp arrangement.
protection solutions to the toughest subsea
challenges. Njord Guide - Njord Guide are solutions that are
designed to allow any flexible or rigid line or
Njord Buoyancy - In floating production scenarios, multiple lines to be centred or to be sealed, in a
pipelines such as flexible risers, cables and I-Tube, J-Tube, Tunnel or large diameter pipe.
umbilicals are often required to be held subsea
in specific geometric configurations designed to Njord Protection - With an ever increasing global
prevent over utilization of the system. requirement for data and product transfer, and
the necessity for transfer networks to run through
ever harsher environments, the demand for highly
advanced cable and flowline protection grows.

Njord Thermal Insulation - Thermal insulation is


necessary to avoid formation of hydrate plugs and
wax build-up in subsea structures. The build-up
begins when the oil/gas composition temperature
is not maintained and begins to cool. Without
thermal insulation the cold seawater rapidly cools
down the oil, forming hydrate/ wax blockages
making it.

TRELLEBORG OFFSHORE I 23
Njord DBM (Distributed Buoyancy Module)

Tailored buoyancy
solutions
In floating production scenarios, pipelines To provide the project performance at every level,
such as flexible risers, cables and umbilicals the buoyancy system can be adjusted to operate
are often required to be held subsea in specific in seawater depths from surface to 6,000m and
geometric configurations designed to prevent beyond.
over utilization of the system. Although numerous
configurations have been developed and
implemented over the years, one favored method is
to attach discreet buoyancy modules to the outside
of the pipeline. The buoyant load must not migrate
or degrade over the design life of the product.

Njord DBMs (Distributed Buoyancy Modules)


are typically used between a subsea structure and
a surface vessel or platform. The clamping solution
allows the Njord DBMs to be fitted at any point
along the length of the pipeline.

The two main functions of the Njord DBMs are


to provide uplift and maintain location along
the riser. The uplift is generated by a two part
buoyancy component. A clamp securely attaches
the assembly to the desired location on the
riser. The buoyancy segments are assembled
to mechanically lock around the clamp and are
secured with circumferential straps.

24 I TRELLEBORG OFFSHORE
Benefits:

• Reduces top tension loads


• Maintain project specific riser configuration
• Fast, efficient and safe offshore installation
procedure
• Compliant systems aimed at encapsulating
large flowline tolerances and expansions/
contractions
• Extensive subsea track record
• Industry qualified materials and geometry
• Comprehensive document and drawing
package

TRELLEBORG OFFSHORE I 25
Njord RBM (Rotating Buoyancy Module)

Repeatable and
predictable
pipeline behaviour
Njord RBM (Rotating Buoyancy Module) are used
to mitigate buckling in seabed pipelines. Buckling
occurs during start-up and shutdown sequences as
the thermal fluctuations cause pipelines to expand
and contract, leading to problematic buckling along
its length.

Traditionally non-rotating cylindrical buoyancy


modules have been installed along sections of the
pipeline to reduce the weight and friction in that
section and promote controlled bending. However
in certain conditions the modules have displaced
seabed material to build ridges (berms) that have
then restricted the lateral movement that the
modules were installed to promote.

With that in mind, Trelleborg developed Njord


RBM that roll on the seabed that thereby reduces
lateral friction, berm creation and allows repeatable
and predictable pipeline behaviour, eliminating
rogue buckles and reducing axial walking in the
pipeline. As a consequence it allows for project cost
reduction as a lower quantity of buoyancy modules
are used to create ‘safe buckling zones’.

26 I TRELLEBORG OFFSHORE
Benefits:

• Reduce project costs Applications:


• Predictable safe buckling zones
• Reduce berm creation Seabed pipeline and flowlines
• Eliminate rogue buckles
• Reduce axial walking in the pipeline

TRELLEBORG OFFSHORE I 27
Njord SBM (Standardized Buoyancy Module)

Customized
uplift
Bare riser
protection systems

Njord DBMs (Distributed Buoyancy Module) are


typically used between a subsea structure and a
surface vessel or platform to hold pipelines in a
specific geometric configuration to prevent over
utilization of the system. The two main functions
of Njord DBMs are to provide uplift and maintain
location along the riser to hold the project specific
riser configuration.

With this in mind, Trelleborg developed a new


modular design for its Njord DBMs range, Njord
SBM (Standardized Buoyancy Module). The
modular design enables the customer to adapt
uplift requirements as specified for each project.
The modular buoyancy segments are designed
to mechanically lock around the clamp, securely
attaching the assembly to the desired location on
the riser.

The Njord SBMs can be adjusted to operate in


seawater depths from surface to 2,500 meters. The
revolutionary design incorporates synthetic feet at
the bottom of the finished assembly, which prevents
damage and reduces vessel installation time.

28 I TRELLEBORG OFFSHORE
Applications: Benefits:

• Cables • Custom buoyancy to customer specification


• Flexible risers • Decreased top tension loads
• Umbilicals • Ease of handling
• Jumpers • Maintains riser configuration
• Flowlines • Reduced lead time
• Reduced vessel installation time

Watch our product video

TRELLEBORG OFFSHORE I 29
Njord Trimsyn & Njord Trimlok

High quality support


syntactic floats

Njord Trimsyn syntactic floats are manufactured


using high performance syntactic foam and are
floats which offer additional buoyancy in all marine
applications, such as umbilical cable support, ROV
trim buoyancy or as simple installation aids. Easy Installation

To streamline the attachment of Trimsyn™ floats, Njord Trimlok eyebolt is suitably sized for operation
we developed the Njord Trimlok umbilical clamp. by cold or gloved hands.
Molded in a marine grade polyurethane elastomer,
the clamp is sized to fit around a cable or
umbilical, providing positive grip without damaging
the structure of the umbilical.

Features & Benefits

Njord Trimsyn syntactic floats and Njord Trimlok


attachments offer excellent features and benefits
and are safe, efficient and easy to use. As the
product is off the shelf stock orders and delivery
are quick and easy.

Positive Connection

A large eyebolt swivel assembly allows the


Njord Trimlok to remain attached to the float by
means of a karabiner and pendant wire.

30 I TRELLEBORG OFFSHORE
NJORD TRIMSYN SPECIFICATIONS
Type-Depth Weight in air (kg) Nett buoyancy (kg) Nominal diameter (mm)
MTS-1000 10 8 300
MTS-2000 11 7 300
MTS-3000 12 6 300
TS1-1000 16 13 350
TS1-2000 17 12 350
TS1-3000 18 11 350
TS2-1000 25 25 430
TS2-2000 29 22 430
TS2-3000 31 20 430
TS3-1000 52 55 500
TS3-2000 57 50 500
TS3-3000 59 48 500

TRELLEBORG OFFSHORE I 31
Njord NB (Nano Buoyancy)

Creating
custom uplift

Trelleborg developed an off-the-shelf range of manufactured from a low density carbon fiber
subsea modular buoys, called Njord NB (Nano macrosphere and syntactic foam. The core is then
Buoyancy), for moderate subsea uplift. Suitable encapsulated in a high density polyethylene shell
for subsea equipment installation, each buoy for impact and abrasion protection needed for the
core varies in density to suit individual project harsh offshore environment. Nano Buoy assemblies
water depth needs. By simply adding or removing are available at depth ratings from 1,000 to 4,000
individual units from the nested flotation stack, meters.
uplift can easily be adjusted.
Njord NB assemblies are available at depth ratings
Njord NB (Nano Buoyancy) are engineered to offer from 1,000 – 4,000 meters.
a durable, short lead time option to complete our
range of subsea buoyancy solutions. The unique
nesting design of the individual buoyancy elements
enables them to quickly assemble into a rigid
structure with a specific uplift. The assemblies are
held together and handled by using soft slings.
The slings have numerous benefits including
corrosion resistance, ease of handling, and no loss
of buoyancy when compared to metal hardware.
These soft slings are available for all assemblies
to quickly and easily secure a nested buoyancy
structure together for deployment.

Available in Njord NB and Njord NB-HP, both options


are offered in a full depth range for maximum
design versatility and are easily deployed strings of
buoyancy elements. Nano buoys are manufactured
from a combination of low density glass fiber
macrospheres and syntactic foam, NB-HPs are

32 I TRELLEBORG OFFSHORE
Benefits: Applications:

• Nesting design • Pipeline sleds


• Easy to use slings • Jumpers
• Durable rotomolded shells • Suspended moorings
• Long life • Offshore installations

The table below illustrates the uplift generated for a depth rating of 1,000 meters for a standard Njord NB:

Assemblies Depth Rating (M) Standard Buoyancy (lbs +/- %5) Upper Weight Limit (lbs) Lower Weight Limit (lbs)
2 Ends 1000 169 162 146
2 Ends + 1 Mid 1000 262 262 236
2 Ends + 2 Mid 1000 355 361 326
2 Ends + 3 Mid 1000 449 460 416
2 Ends + 4 Mid 1000 542 559 506
2 Ends + 5 Mid 1000 635 658 596

TRELLEBORG OFFSHORE I 33
Njord EB (Ellipsoidal Buoyancy) &
Njord SB (Spherical Buoyancy)

Accelerating design
freedom

Trelleborg Applied Technologies manufactures Trelleborg’s established subsea buoys are


a range of Njord EB (Ellipsoidal Buoyancy) & Njord manufactured from our proven HDPE (high density
SB (Spherical Buoyancy), providing long term, poly-ethylene) rotomolded shells, and filled with our
stable buoyancy to arrays of underwater equipment. in house microsphere and macrosphere fill system.
With a full line of buoyancy solutions from 100 Each subsea buoy is fully customizable for complete
meters to 6,000 meter water depths, these buoys design freedom, to accommodate any size, uplift,
are available in numerous sizes and shapes to structural components, or housing equipment
ensure successful deployment and recovery during needed within the float.
mooring expeditions.

With two geometries available, spherical or


ellipsoidal,the buoys are low maintenance and
extremely rugged to meet the harsh demands of
both deepwater and coastal environments. Njord
EBs are preferred for high current environments
when low drag is necessary.Njord EB and Njord SB
are fully able to integrate as a key component in
mooring systems.

34 I TRELLEBORG OFFSHORE
Features & Benefits: Applications:

• 100 to 6000 meter depth rated • Oceanographic mooring


• Spherical or low drag ellipsoidal geometries • Subsurface mooring
• Custom through holes • Acoustic Doppler Current Profiler (ADCP)
• Low maintenance • Fixed installation

TRELLEBORG OFFSHORE I 35
Njord APBS (Piggyback System)

Clamping solutions
for the pipeline
A pipeline laying operation may have a requirement
to simultaneously lay a small diameter service
line or umbilical. During the installation, to ensure
that the secondary lines are adequately supported
between surface and seabed, they may be attached
to the main pipeline using a clamp arrangement.
This attachment method is known as piggybacking.

An advanced Piggyback System (APBS) is a pair of


“snap-together” two-piece injection molded marine
grade polypropylene saddles. The pieces are fixed
in position by a highly corrosion-resistant Alloy 625
circumferential banding strap. It also has a sealing
assembly using a unique technique to ensure no
movement in the seal.

For post installation of the secondary line the diver-


friendly piggyback guide was designed to improve
safety. The guide uses edge treated banding and an
updated fastening system which eliminates sharp
edges reducing the risk of cuts to the diver. The
innovative design reduces handling and improves
installation efficiency and time enabling significant
cost savings while increasing diver safety.

36 I TRELLEBORG OFFSHORE
Benefits:

• Durable
• Easy installation of the secondary line
• Excellent impact and abrasion resistance
• Long term service
• Light weight
• Minimal creep
• Minimal deformation
• Tough

Advanced
piggyback system

Advanced
piggyback system

Post installation clamp

TRELLEBORG OFFSHORE I 37
Njord C (Centralizer)

Preventing
abrasion damage

In the subsea environment ocean currents


increase the chance of abrasive damage of
supported lines within tubes. Over time this
damage could put the connections at risk.

Njord C (Centralizer) function is to allow any flexible


or rigid line, or multiple lines, to be centered in an
I-Tube, J-Tube, tunnel or larger diameter pipe.

Installation

Njord C is installed onto the cable or pipe prior to


deployment and pulled in as one unit.

Reduced pull in loads

Their low coefficient results in reduced installation


loads when the line is being pulled in.

Abrasion protection

Njord C prevent the supported line from


touching the inside of the tube into which they are
being pulled, preventing abrasion damage.

38 I TRELLEBORG OFFSHORE
Key Applications:

To meet our customers’ needs, our cutting-edge


solutions can be used for the below applications:

• Cable
• Umbilical
• Pipeline
• Combinations of cables,umbilicals and pipes

TRELLEBORG OFFSHORE I 39
Njord J-Tube S (Seal)

Preventing the loss of


corrosion inhibitor

In the subsea environment pipe connections are Corrosion inhibitor retention


at risk of corrosion, due to the level of acidity in the
water. This corrosion reduces the stability of the Njord J-Tube S is primarily used to prevent the loss
pipeline, increasing the likelihood of leakage. of corrosion inhibitor within the J-Tube annulus.

Njord J-Tube S (Seal) are used to prevent the loss of


corrosion inhibitor solution used in the annulus
between the host line and the J-Tube bore.

Diverless and modular design

The seal is secured to the host line by integral


clamps. It can then be pulled into the J-Tube or
I-Tube with the host line. Typically the seal will be
installed in the J-Tube just behind the entry
bellmouth.

Interference fit

Polyurethance seal elements are used to provide


an interference fit to the host line and the J-Tube
bore. The interference fit provides the seal – no
subsea activation is necessary.

40 I TRELLEBORG OFFSHORE
Key Applications

• J-Tube
• Centralized action
• Ancillary attachment

TRELLEBORG OFFSHORE I 41
Njord BR (Bend Restrictor)

A bend limiting
device
Where any flexible tubular connects to a structure, The system comprises a number of interlocking
normal movement during operation (dynamic elements that articulate in 3 dimensions when
loading) or forces incurred during installation and subjected to external loads. At a designed radius
retrieval (static loading) can cause catastrophic the elements mechanically lock to form a semi rigid
failure of the tubular at the termination point. The curved structure that will not move further.
failure mode can be through collapse, rupture
of internal lines or even rupture of the external
layers leading to escape of the contents to the
environment. This can happen as a result of a
single event or be caused through fatigue damage
over time.

Bend limiting devices are provided to protect the


tubular from these situations and perform the
following functions:

• Maintain the manufacturers recommended


minimum bend radius (MBR) during the life Once the elements lock together the bending
of the project moment present is transferred through the
• Provide a suitable load path from tubular elements to a specially designed steel interface
to fixed structure structure then into the adjacent rigid connection.
• Reduce point loading at the termination to To provide the performance at every level,
an acceptable level Trelleborg Offshore will design the Njord BR
elements based on supplied information and
Njord BR (Bend Restrictor) configure the termination steelwork to suit the
project needs.
Njord BR is used to protect flexible pipelines from
overbending and buckling during their installtion or
operation phase where static loads are generated.

42 I TRELLEBORG OFFSHORE
Benefits :

• A split design allows installation of the


restrictor after pipe termination
• Ease of installation onshore and offshore
• Light weight in water, reducing the loading
on the pipe
• Increased durability

TRELLEBORG OFFSHORE I 43
Njord BS (Bend Stiffener)

Bend protection in
dynamic environments
Where any flexible tubular connects to a structure, Njord BS (Bend Stiffener)
normal movement during operation (dynamic
loading) or forces incurred during installation and Njord BS acquired their name because
retrieval (static loading) can cause catastrophic the conical shape gradually increases the overall
failure of the tubular at the termination point. The stiffness of the tubular in order to prevent over
failure mode can be through collapse, rupture bending at the termination point. Manufactured
of internal lines or even rupture of the external from elastomeric material, a Njord BS is suited to
layers leading to escape of the contents to the the constant wave and current induced motion
environment. This can happen as a result of a of dynamic installations but can also be used for
single event or be caused through fatigue damage static applications.
over time.
Njord BS are project specific and to provide you with
Bend limiting devices are provided to protect the the performance at every level, Trelleborg Offshore
tubular from these situations and perform the will fully engineer the product to accommodate the
following functions: defined tension and angle combinations.

• Maintain the manufacturers recommended Trelleborg Offshore’s track record in the supply of
minimum bend radius (MBR) during the life Njord BS, specifically for dynamic applications, is
of the project extensive.
• Provide a suitable load path from tubular
to fixed structure
• Reduce point loading at the termination to
an acceptable level

44 I TRELLEBORG OFFSHORE
Benefits :

• Added local stiffness to the umbilical


or flowline
• Limits bending stresses and curvature
• Prevents structure damage from overbending
Reduces structure fatigue

Achievements:

• First dynamic bend stiffener supplied for


service in 1994
• Over 1,000 dynamic bend stiffeners
currently in service
• Njord BS operates in locations
around the world in ambient temperatures
ranging from -20°C/-4°F to 50°C/122°F
• 100% track record with no failures in service
• Lloyd’s Register Type Approval

TRELLEBORG OFFSHORE I 45
Njord Polymat

Cable protection
on the seabed

There are many existing subsea cables and


pipelines on the seabed. When new cables are laid
they often have to cross these existing lines. There
is a risk of damage through abrasion or crushing if
there is direct contact between the lines.

Njord Polymat provides impact and abrasion


protection along with Uraduct® for cable crossings.
Njord Polymat has been used to cover drill cuttings
on the seabed to avoid abrasion and also used on
drilling vessels/rigs in areas where the drill strings
are stored as a ‘floor’ material.
Illustration of a Njord Polymat in position
Njord Polymat is ROV installable and is particularly at a pipeline/cable crossing
suited to deep water applications and can be used
to stabilize cables and cable bights on the seabed
whilst also provide protection at cable crossing
locations.

Njord Polymat in position


over a subsea pipeline

46 I TRELLEBORG OFFSHORE
Key Applications:

• Cables
• Cable crossing
• Pipes
• Seabed storage

Benefits:

• Njord Polymat can be used at any water depth • Polymat can incorporate a barytes infill
• The polyurethane material is suitable for long that provides additional ballast to aid product
term subsea application without degradation stability on the seabed
• It can be used in place of concrete mattresses, • Polymat is molded with grooves on one side
specifically where impact or abrasion protection to allow the mat to flex and closely fit the profile of
is the key design function. Polymat is not the pipeline
brittle like concrete • Resistant to repeated impacts at same
• For ease of handling, holes are molded locations, unlike concrete
along the edges of each Polymat to allow
attachment for pick up ropes, etc.

Ballast and reinforcement


inside the Njord Polymat

TRELLEBORG OFFSHORE I 47
Njord Polyspace

Cable protection
on the seabed
As more cables and pipelines are deployed there
is an ever increasing chance that one cable will
need to cross another. To minimise “noise” etc.
being transmitted from one cable to another there
is a requirement to have a minimum 350 mm
standoff distance.

Njord Polyspace was developed specifically to


address the requirement to maintain a positive
clearance between cables and existing pipelines at
crossing points when laying subsea cables.

Njord Polyspace is a product specifically designed


to generate a guaranteed 350 mm clearance
between a cable and a pipeline. This system is
flexible and comprises interlocking hollow marine
grade High Density Polyethylene (HDPE) halfshells
fastened around the cable by corrosionresistant
metallic banding. Internal cable clamps are used
to lock the Njord Polyspace mouldings onto the
cable at regular intervals and specific leading and
trailing bending stiffeners can also be included
with the system to prevent the cable exceeding the
Njord Polyspace installation on offshore vessel
recommended minimum bend radius at any
time during the installation.

48 I TRELLEBORG OFFSHORE
Applications:

• Power cables
• Fiber optic cables
• Hoses
• Flexible Flowlines

Benefits:

• The HDPE half-shells have good impact


strength and abrasion resistance whilst
offering UV stability
• Each moulding is free-flooding and can be
supplied with a ballast system to provide up
to 90 kg/m of additional submerged weight to
suit the situation
• The cable can be retrieved if required
• Njord Polyspace is installed onto the cable as it is
deployed from the vessel at the crossing
location. The interlocking shells can achieve
a bend radius of 1.5 m to suit most cableship
sheaves, therefore providing a cost-effective
one-hit solution at pipeline crossings where
clearance is a requirement
• The system becomes an integral part of the
cable, therefore negating additional problems
associated with alternative methods, which are
expensive, time consuming and difficult to
place accurately
• No pre-lay operations Cable crossing on the seabed
• Alternative/competing solutions include rock
dumping/ concrete mattresses and subsea
“bridges”. For all of these methods installation
must take place before the cable can be
installed and need expensive vessel time to
construct, especially in deep water
• Njord Polyspace is not water depth dependent as
it is free-flooding

TRELLEBORG OFFSHORE I 49
Uraduct ®

Cable and flowline


protection
With an ever increasing global requirement for
data and product transfer, and the necessity for
transfer networks to run through ever harsher
environments, the demand for highly advanced
cable and flowline protection grows.

Uraduct® is a protection system designed and


developed to protect fiber optic cables, power
cables, umbilicals, flexible flowlines, rigid flowlines,
hoses and bundled products from abrasion and
impact. Uraduct® can also be used to add ballast
to cables and flowlines. It has established an
enviable reputation as an industry standard for
cable and flowline protection.

Uraduct® +

For applications where pipelines or cables are to


be subject to high levels of abrasion, Trelleborg
developed Uraduct® +, which is considered to
be the ultimate protection solution. Flexible
pipes, power cables and fiber optic cables can
be protected in any area where abrasion is
considered to be a problem and stabilization
cannot be achieved.

50 I TRELLEBORG OFFSHORE
Benefits:

• Easy to handle and transport


• Custom made system
• Impact and abrasion resistant

Uraduct® RRS (Retrofit Riser System)

With the increasing number of additional cables This system provides a very cost-effective solution
requiring termination to the offshore platforms and where cable entry to a platform is not possible via
to provide you with performance at every level, existing ‘J’ or ‘I’ tubes. Prior to Trelleborg’s Uraduct®
Trelleborg designed the Uraduct® RRS, which RRS the only alternative was to install new steel ‘J’
comprises of Uraduct® and dedicated, high integrity or ‘I’ tubes at great expense, compounded with time
locating clamps. consuming and problematic installation.

TRELLEBORG OFFSHORE I 51
Uraduct ® Buoyant

Buoyant protection for


cables and flowlines
Demand is growing for highly advanced cable
and flowline protection, as the global requirement
increases for data and product transfer, through
ever harsher environments. When lines cross each
other on the seafloor, there is a potential risk of
damage to the previously laid power cables or
flowlines.

To prevent this damage, Trelleborg developed


Uraduct ® Buoyant, a protection system for subsea
cables, umbilicals, flowlines and hoses. Based on
the original Uraduct ® design, Uraduct ® Buoyant not
only protects cables from abrasion and impact, it
also reduces the excess weight of a subsea cable
so that it will not crush other lines at crossing
locations. Made from highly buoyant materials,
Uraduct ® Buoyant minimizes drag and lift, avoiding
possible stability issues.

Uraduct ® Buoyant is a suitable alternative to


subsea crossing bridges and can be installed
on the cable or pipeline before it is laid on the
seabed.

52 I TRELLEBORG OFFSHORE
Applications:

• Bundled products
• Fiber optic cables
• Flexible flowlines
• Hoses
• Power cables
• Rigid flowlines
• Umbilicals

Benefits:

• Abrasion resistant
• Custom buoyancy to customer specification
• Minimizes drag
• Field tested
• High impact resilient

TRELLEBORG OFFSHORE I 53
Tri-Strakes® C (Combi)

Resilient & stackable


vortex induced
vibration suppression

Pipelines unsupported over free spans, such as To perform at every level, Trelleborg Offshore
steel catenary risers and rigid steel flowlines, are built up a wealth of in-house VIV knowledge
prone to vortex induced vibration (VIV) fatigue, through consultation with industry renowned
which can cause serious performance issues hydrodynamicists, alongside computational
such as pipe girth weld failure or premature pipe analysis. Physical hydrodynamic testing combined
malfunction. with in-house impact, axial slip and load bearing
capacity testing has produced a hydrodynamically
Developed in response to market demand, the efficient and load bearing capable product. All
Tri-Strakes® C (Combi) is a high quality, materials and geometries used are fully qualified
costeffective VIV suppression system manufactured for long term subsea use.
by Trelleborg Offshore. The system consists of
overlapping and interlocking moldings, with
three-start helical strakes to provide an effective
triangular or trapezoidal strakes profile.

Working with polymers across a number of


technologies and industries, Trelleborg Offshore
was able to use insight and innovation to
improve packing and handling factors using
best-value engineered solutions. The established Each section of the system has been designed as
manufacturing process means that the a single, lightweight component, enabling quick
Tri-Strakes® C (Combi) can be produced up to three and easy pre-install onshore or install offshore.
times faster than systems manufactured using The hinged design permits the system to be
traditional techniques, ensuring shorter lead times. stacked efficiently during shipping, ensuring more
The product is manufactured in marine grade efficient and cost effective transportation and
polyurethane (PU), giving the benefits of traditional installation.
cable and flowline impact and abrasion protection
with an effective VIV suppression profile.

54 I TRELLEBORG OFFSHORE
Features:

• Cost effective, high density packaging


• Light weight and easy to handle
• Impact and abrasion resistant
• Moderate S-Lay and full J-Lay load
bearing capacity
• Temperature resistant up to 60 °C / 140 °F
• Qualified geometry and materials
• Quick installation

For a stackable and lightweight vortex induced For a highly resilient vortex induced vibration
vibration suppression solution take a look at our suppression solution take a look at our
Tri-Strakes® L (Lite) product at: Tri-Strakes® S (Stinger) product at:
www.trelleborg.com/offshore/tri-strakes-lite www.trelleborg.com/offshore/tri-strakes-stinger

TRELLEBORG OFFSHORE I 55
Tri-Strakes® L (Lite)

Stackable & lightweight


vortex induced
vibration suppression

Pipelines unsupported over free spans, such as analysis. Physical hydrodynamic testing combined
steel catenary risers and rigid steel flowlines, are with in-house impact, axial slip and load bearing
prone to vortex induced vibration (VIV) fatigue, capacity testing has produced a hydrodynamically
which can cause serious performance issues efficient and load bearing capable product. All
such as pipe girth weld failure or premature pipe materials and geometries used are fully qualified
malfunction. for long term subsea use.

Developed in response to market demand, the


Tri-Strakes® L (Lite) is a high quality, cost-effective
VIV suppression system manufactured by Trelleborg
Offshore. The system consists of overlapping and
interlocking moldings, with three-start helical
strakes to provide an effective triangular or
trapezoidal strakes profile.

Working with polymers across a number of


technologies and industries, Trelleborg Offshore Each section of the system has been designed as
was able to use insight and innovation to improve a single, lightweight component, enabling quick
packing and handling factors using best-value and easy pre-install onshore or install offshore.
engineered solutions. The innovative manufacturing The design permits the system to be stacked
process means that the Tri-Strakes® L (Lite) can be efficiently during shipping, ensuring more efficient
produced up to six times faster than systems and cost effective transportation and installation.
manufactured using traditional techniques,
ensuring shorter lead times.

To perform at every level, Trelleborg Offshore


built up a wealth of in-house VIV knowledge
through consultation with industry renowned
hydrodynamicists, alongside computational

56 I TRELLEBORG OFFSHORE
Features:

• Cost effective, high density packaging


• Light weight and easy to handle
• J-Lay load bearing capacity
• Temperature resistant up to 90 °C / 194 °F
• Qualified geometry and materials
• Quick installation
Installation of
• Available in a wide range of colors Tri-Strakes® L Lite

For a highly resilient vortex induced


vibration suppression solution take a look at
our Tri-Strakes® S (Stinger) product at:
www.trelleborg.com/offshore/tri-strakes-stinger

For a combination of the stackability of the


Tri-Strakes® L (Lite) with the load resilience of the
Tri-Strakes® S (Stinger) take a look at our
Traditional PU Strakes Trelleborg’s new Tri-Strakes® L Lite Tri-Strakes® C (Combi) product at:
www.trelleborg.com/offshore/tri-strakes-combi

Pipeline installation

TRELLEBORG OFFSHORE I 57
Tri-Strakes® S (Stinger)

Highly resilient vortex


induced vibration
suppression

In deepwater riser applications where the use of with in-house impact, axial slip and load bearing
steel catenary risers (SCRs) is common, these capacity testing has produced a hydrodynamically
risers can be introduced to the phenomenon of efficient and load bearing capable product. All
Vortex Induced Vibration (VIV). This is caused by materials and geometries used are fully qualified
the regular shedding of vortices from the pipe for long term subsea use.
when subjected to a steady current. The shedding
of the vortices can “lock into” the resonant To provide you with performance at every level,
frequency of the pipe along a significant length Trelleborg Offshore offers a range of VIV
and can cause the pipe to vibrate. VIV causes Suppression Strakes to meet your needs.
accelerated fatigue damage and can give rise
to problems such as pipe girth weld failure or
premature pipe failure. Other applications prone to
VIV are rigid steel flowlines unsupported over free
spans and major deepwater field developments
requiring a large number of thermally insulated
pipelines.

Trelleborg Offshore recognizes that this is an


increasingly common problem and therefore,
in order to suppress the damaging vibrations
to an acceptable level, have put together a
comprehensive design package which provides a
successful VIV suppression system.

To perform at every level, Trelleborg Offshore


built up a wealth of in-house VIV knowledge
through consultation with industry renowned
hydrodynamicists, alongside computational
analysis. Physical hydrodynamic testing combined

58 I TRELLEBORG OFFSHORE
PU VIV Suppression Strakes

PU VIV suppression strakes combine the benefits of


traditional cable and flowline impact and abrasion
protection with an effective VIV suppression profile.
The product is manufactured in marine grade
polyurethane (PU). For a stackable and lightweight vortex induced
vibration suppression solution take a look at our
Integral Strakes Tri-Strakes® L (Lite) product at:
www.trelleborg.com/offshore/tri-strakes-lite
Trelleborg Offshore is able to mould strakes
For a combination of the stackability of the
profiles into many of its products during Tri-Strakes® L Lite with the load resilience of
manufacture. This is ideally suited for thermal the Tri-Strakes® S Stinger take a look at our
insulation shells, where strakes can be molded in, Tri-Strakes® C Combi product at:
to provide effective VIV suppression. www.trelleborg.com/offshore/tri-strakes-combi

TRELLEBORG OFFSHORE I 59
Vikotherm® G3

The benchmark for


wet insulation systems

Effective insulation of subsea structures helps In today’s extreme subsea environments, optimum
maintain flow rates, optimize productivity, reduce performance and complete reliability are of
processing costs and provide an optimum defence paramount importance. Trelleborg brings both
against wax and hydrate formations. Vikotherm® world-class material technology and experience of
G3 is just one of the subsea thermal insulation the world’s most challenging subsea environments
solutions within the Trelleborg Vikotherm® range. to your project. Vikotherm® G3 is Trelleborg’s
commitment to helping you ensure optimal high
Vikotherm® G3 is a non-mercury glass syntactic pressure and high temperature flow performance.
polyurethane insulation system. It can be applied
across all geographical deep water oil and gas
locations and its geometrical structure means
it is qualified to meet a full range of application
specifications.

Not only does Vikotherm® G3 incorporate


all the benefits of an elastomeric system, its
thermal performance is top of the range. Offering
a long-term insulation solution that is designed
to last the duration of any subsea project,
Vikotherm® G3 combines high performance with
exceptional durability.

60 I TRELLEBORG OFFSHORE
Benefits: Applications:

• Low thermal conductivity • Risers


• Flexibility and resistance to cracking • Subsea trees
• Enhanced joint strength over a broad range • Manifolds
of products • Pipeline end manifolds (PLEMs)
• Pipeline end terminations (PLETs)
Features: • Jumper and spool pieces
• All types of connections
• Operating temperature range
from -40°C to +60°C / -40°F to +140°F Products Temperature Depth limit
Limit hot/wet (˚C/˚F) (m/ft)
• Tensile strength +12MPa
Vikotherm® R2 155/311 3,000/9,843
• Thermal shock resistant
Vikotherm® S1 135 / 275 3,000/9,843
• Low thermal conductivity
Vikotherm E2
®
100 / 212 2,000/6,562
• Elastomeric system
7,000/22,966
• Extremely durable Vikotherm® P7 90 / 194

Vikotherm E1
® 90 / 194 2,000/6,562

Vikotherm® PT 90 / 194 2,000/6,562


Vikotherm® G3 60/140 1,800/5,905

Vikotherm® PP 150/302 3,000/9,843


Vikotherm R3
®
180/356 3,000/9,843 +

TRELLEBORG OFFSHORE I 61
Vikotherm® P7

The benchmark for


wet insulation systems

Effective insulation of subsea structures helps In today’s extreme subsea environments, optimum
maintain flow rates, optimize productivity, reduce performance and complete reliability are of
processing costs and provide an optimum defence paramount importance. Trelleborg brings both
against wax and hydrate formations. Vikotherm® world-class material technology and experience of
P7 is just one of the subsea thermal insulation the world’s most challenging subsea environments
solutions within the Trelleborg Vikotherm® range. to your project. Vikotherm® P7 is Trelleborg’s
commitment to helping you ensure optimal high
Vikotherm® P7 insulation system has an industry pressure and high temperature flow performance.
track record spanning three decades and is
recognized as the benchmark by which other
subsea insulation systems are measured. It has
long been the system of choice for hot wet
applications and field joints.

This non-mercury catalyzed solid polyurethane


insulation system is compatible with a full range
of application specifications. Advances in
application techniques guarantee integrity and
reliability. The system is fully qualified to meet a
complete range of applications and is not restricted
by geometry or applied thickness.

62 I TRELLEBORG OFFSHORE
Benefits: Applications:

• Increased durability • Risers


• High heat capacity and energy inertia • Subsea trees
• Flexibility and resistance to cracking • Manifolds
• Enhanced joint strength over a broad range • Pipeline end manifolds (PLEMs)
of products • Pipeline end terminations (PLETs)
• Suitable for application in all geographic • Jumper and spool pieces
locations • All types of connections

Features:
Products Temperature Depth limit
Limit hot/wet (˚C/˚F) (m/ft)
• Operating temperature range Vikotherm® R2 155/311 3,000/9,843
from -40°C to +90°C / -40°F to +194°F Vikotherm S1
®
135/275 3,000/9,843
• Tensile strength +19MPa Vikotherm® E2 100/212 2,000/6,562
• Thermal shock resistant Vikotherm P7
® 90/194 7,000/22,966
• Elastomeric system Vikotherm® E1 90/194 2,000/6,562
• Extremely durable system Vikotherm PT
®
90/194 2,000/6,562
• Limitless operating depth Vikotherm® G3 1,800/5,905
60/140
Vikotherm PP
®
150/302 3,000/9,843

Vikotherm® R3 180/356 3,000/9,843 +

TRELLEBORG OFFSHORE I 63
Vikotherm® PP

The benchmark for


wet insulation systems

Effective insulation and corrosion protection of


subsea structures helps maintain flow rates,
optimize productivity, reduce processing costs
and provide an optimum defense against wax
and hydrate formations. Vikotherm® PP is a
thermoplastic thermal insulation and corrosion
protection system within the Trelleborg
Vikotherm® range.

Vikotherm® PP encompasses an excellent


combination of resilience, thermal performance
and chemical stability suited for the demanding
subsea environment. With an integral high quality
FBE corrosion coating, the system can be applied
as a thin film using spray techniques or as a thick
coating using injection molding technology.

Vikotherm® PP is ideal for customers who need


thermal insulation or corrosion protection for
ultra-deep projects with extreme temperatures.
The system boasts an operating temperature of
-40°C to 150°C and has exceptional dimension
reliability. It is resistant to impact loads, cracking
and thermal shock. This system provides
corrosion and mechanical protection, plus thermal
insulation, all in one coating.

64 I TRELLEBORG OFFSHORE
Applications: MECHANICAL AND THERMAL PROPERTIES
Bulk Density 850 – 900 kg/m3
• Bends, Spools and T-pieces Ultimate Elongation >100 %
• Jumpers
Compressive Strength >14 MPa at 5% strain at 23 °C
• Goosenecks
Hardness >55 Shore D
• Field Joints
Indentation Resistance <1 mm at 120 °C
• Custom and Engineered Castings
Vicat A50 Temperature >135 °C
Thermal Conductivity 0.22 W/m.K at 40 °C, 900 kg/m3 density
Benefits: Specific Heat Capacity 2,100 J/kg.K at 40 °C

• Excellent hot-wet exposure tolerance


• High thermal capacity
• 3,000m plus operating depth
• Very low water uptake

TRELLEBORG OFFSHORE I 65
Vikotherm® PT

The benchmark for


wet insulation systems

Effective insulation of subsea structures helps


maintain flow rates, optimize productivity, reduce
processing costs and provide an optimum defence
against wax and hydrate formations. Vikotherm®
PT is just one of the subsea thermal insulation
solutions within the Trelleborg Vikotherm® range.

Vikotherm® PT is a high strength, thermally


insulating syntactic polypropylene tape which is
suitable for deep sea application. Vikotherm®
PT is typically used by deep sea flexible pipe
manufacturers and is spirally wound onto the pipe
as part of its construction to maintain flow rates
and reduce the possibility of wax and hydrate
formation. The easy application of this material
means that it can be applied in single or multiple
layers depending on the required insulation levels.

Benefits:

• Low thermal conductivity


• Flexibility and resistance to cracking,
make it extremely durable
• Reduces processing costs
• Provides optimum cover against wax and hydrate
formations
• Easy application

66 I TRELLEBORG OFFSHORE
Features:

• Thermal conductivity of 0.160 to 0.170 W/mK Temperature Depth limit


Products
• Operating temperature to 90°C / 194°F Limit hot/wet (˚C/˚F) (m/ft)
• Tensile strength of 2.8 to 7.9 MPa Vikotherm® R2 155/311 3,000/9,843
• Manufactured with hollow glass microspheres Vikotherm® S1 135/275 3,000/9,843
to lower the thermal conductivity Vikotherm E2
®
100/212 2,000/6,562
• Thicknesses of: 3.5mm – 7mm with Vikotherm P7
® 90/194 7,000/22,966
a width of 50.8mm Vikotherm® E1 90/194 2,000/6,562
• Delivered spools of 100 to 150 kgs Vikotherm® PT 90/194 2,000/6,562

Vikotherm G3
®
60/140 1,800/5,905
Applications: Vikotherm® PP 150/302 3,000/9,843

Vikotherm® R3 180/356 3,000/9,843 +


Risers and flow lines

TRELLEBORG OFFSHORE I 67
Vikotherm® R2

The benchmark for


wet insulation systems

Effective insulation of subsea structures helps Vikotherm® R2 is Trelleborg’s commitment


maintain flow rates, optimize productivity, reduce to helping you ensure optimal high pressure and
processing costs and provide an optimum defence high temperature flow performance.
against wax and hydrate formations. Vikotherm®
R2 is just one of the subsea thermal insulation
solutions within the Trelleborg Vikotherm® range.

Vikotherm® R2, a rubber based subsea thermal


insulation, has 30 years of experience built in. The
system combines flexibility and robustness and
gives protection for the lifespan of subsea
installations. Our state of the art technology is
designed to perform in extreme environments.

The three layer coating system provides HISC /


corrosion protection and excellent thermal
insulation properties. The system is seawater,
impact and creep resistant.

In today’s extreme subsea environments, optimum


performance and complete reliability are of
paramount importance. Trelleborg brings both
world-class material technology and experience of
the world’s most challenging subsea environments
to your project.

68 I TRELLEBORG OFFSHORE
Benefits: Applications:

• Flexible and robust • Jumpers and spool pieces


• Unlimited coating thickness to meet any U-value • Tie in spools
requirement • Manifolds
• Hydrolysis resistant • Subsea XMT
• Good adhesion to metallic and non-metallic • Risers and flow lines
materials • Pipeline end manifolds (PLEMs)
• Excellent corrosion and HISC protection • Pipeline end terminations (PLETs)
• High specific heat capacity • Joints
• Horizontal & Vertical Connection Systems
Features: (HCS & VCS )
• Insulation covers
• Operating temperature range from • Dog houses
-49°C to +155°C / -56°F to 311°F • Flange connections
• High elongation at break > 200%
• Thermal shock resistant Products Temperature Depth limit
Limit hot/wet (˚C/˚F) (m/ft)
• Elastomeric system
Vikotherm® R2
• Low density systems < 800 kg/m3 155/311 3,000/9,843

• Suitable for hot wet applications up to 155°C Vikotherm S1 135/275 3,000/9,843


®

• Inner layer provides corrosion / HISC protection Vikotherm® E2 100/212 2,000/6,562

Vikotherm P7
® 90/194 7,000/22,966

Vikotherm® E1 90/194 2,000/6,562

Vikotherm PT
®
90/194 2,000/6,562

Vikotherm® G3 60/140 1,800/5,905


Vikotherm PP
®
150/302 3,000/9,843

Vikotherm® R3 180/356 3,000/9,843 +

Thermal insulation

Pipe

Mechanical protection

HISC/Corrosion protection

TRELLEBORG OFFSHORE I 69
Vikotherm® R2 A

High temperature
resistant
insulation system

Vikotherm® R2 A is a high temperature resistant


insulation system, with a maximum design
temperature of 155 °C. It is a 3 layer rubber based
system made up of an inner layer for corrosion 76159
protection, a middle insulation layer for low thermal
76187
conductivity and an outer layer for mechanical
protection. 73780

73961
Applications:

• Well jumpers
76183
• Flowline jumpers
• Spools
• Risers
• Field joints
• Vertical Connection System (VCS) 76187

Thermal insulation

Pipe

Mechanical protection

Corrosion protection

70 I TRELLEBORG OFFSHORE
3 LAYER RUBBER BASED SYSTEM FIELD JOINT SYSTEM
Inner Layer 73961 For corrosion protection 4 - 26 mm* Inner Layer 76187 For corrosion protection 4 - 6 mm

Insulation Layer 76159 For low thermal conductivity 4 - unlimited thickness Insulation Layer 76183 For low thermal conductivity 4 - unlimited thickness

Outer Layer 73780 For mechanical protection 4 - 10 mm Outer Layer 76187 For mechanical protection 4 - 10 mm

*The inner layer also acts as a thermal barrier Other field joint solutions are available including
for the middle layer, with the thickness being pre-vulcanised half shells and
adjusted according to the operating temperature heat shrink sleeves.
required.

SYSTEM MECHANICAL AND THERMAL PROPERTIES


Vikotherm® R2 A SI Unit Typical Value - Inner layer Typical Value - Middle layer Typical Value - Outer layer
Hardness, ISO 7619 Shore A >38 >64 >58
Tensile strength, ISO 37 MPa >2,5 >1,3 >9,0
Elongation,ISO 37 % >400 >140 >400
Tear strength, ISO 34 N/mm >7,0 >9,0 >30,0
Density, ISO 2781 A g/ml >0,94 >0,63 1,4
Specific heat capacity,ISO 11357 J/gK 1,9 1,6 1,3
Thermal conductivity, ISO 8301 W/mK 0,19 0,14 0,26
Bonding to steel, ISO 813 90°peel N/25mm >87 or cohesive

Vikotherm® R2 A Field Joint SI Unit Typical Value - Inner layer Typical Value - Middle layer Typical Value - Outer layer
Hardness, ISO 7619 Shore A >50 >55 >50
Tensile strength, ISO 37 MPa >2,0 >0,8 >2,0
Elongation, ISO 37 % >500 >30 >500
Tear strength, ISO 34 N/mm >25,0 >5,0 >25,0
Density, ISO 2781 A g/ml >1,26 0,63 >1,26
Specific heat capacity,ISO 11357 J/gK 1,5 1,5 1,5
Thermal conductivity, ISO 8301 W/mK 0,3 0,14 0,3
Bonding to steel, ISO 813 90°peel N/25mm >67 or cohesive

TRELLEBORG OFFSHORE I 71
Vikotherm® S1

The benchmark for


wet insulation systems

Effective insulation of subsea structures helps In today’s extreme subsea environments, optimum
maintain flow rates, optimize productivity, reduce performance and complete reliability are of
processing costs and provide an optimum defence paramount importance. Trelleborg brings both
against wax and hydrate formations. Vikotherm® world-class material technology and experience of
S1 is just one of the subsea thermal insulation the world’s most challenging subsea environments
solutions within the Trelleborg Vikotherm® range. to your project. Vikotherm® S1 is Trelleborg’s
commitment to helping you ensure optimal high
Vikotherm® S1 sets a new standard in insulation pressure and high temperature flow performance.
performance based on advanced,
non-syntactic silicone technology. Vikotherm®
S1 does not rely on glass microspheres giving it
improved joint strength, increased heat capacity,
long-term flexibility and resistance to hydrostatic
collapse. It cures at room temperature without
exposure to air with zero shrinkage.

Vikotherm® S1 is typically applied over


anticorrosion coatings, using specialized
application equipment.

72 I TRELLEBORG OFFSHORE
Benefits: Applications:

• Increased thermal and hydrolytic stability • Subsea trees


• Improved thermal conductivity and • Manifolds
heat capacity • Pipeline end manifolds (PLEMs)
• Extremely flexible and resistant to cracking • Pipeline end terminations (PLETs)
• Superior joint strength • Jumpers and spool pieces
• Flange connections
Features: • Insulation covers
• Dog houses
• Operating temperature range • Risers and flow lines
from -40°C to +135°C / -40°F to 275°F
• Tensile strength +5MPa
• Low thermal conductivity Products Temperature Depth limit
• High elongation +300% Limit hot/wet (˚C/˚F) (m/ft)
Vikotherm® R2 155/311 3,000/9,843
Vikotherm® S1 135/275 3,000/9,843

Vikotherm E2
®
100/212 2,000/6,562

Vikotherm® P7 90/194 7,000/22,966

Vikotherm® E1 90/194 2,000/6,562

Vikotherm® PT 90/194 2,000/6,562

Vikotherm G3
®
60/140 1,800/5,905
Vikotherm® PP 150/302 3,000/9,843

Vikotherm® R3 180/356 3,000/9,843 +

TRELLEBORG OFFSHORE I 73
Mobile Production Unit (MPU)

A Mobile Coating
Facility
Trelleborg Offshore’s Mobile Production Unit (MPU) MPU can be used on, but not limited to:
is a mobile coating facility that can carry out onsite
coating of Corrosion Protection, Thermal Insulation • Jumpers and spool pieces
and Passive Fire Protection. The MPU performs at • Tie in spools
every level as it can be mobilized in a short time • Hand coating on bend
frame and transported all over the world. • Manifolds
• Risers and flow lines
The MPU consists of: • Pipeline End Manifolds (PLEM)
• Pipeline End Terminations (PLET)
• Complete workshop with First Aid Kit and all • Joints, Field Joint Coating
consumables needed. • Connectors
• Extruder container with possibility for side • Subsea Xmas Tree (XMT)
extrusion (straight pipes up to 12 meters), as • Flange connections
well as production of profi les for coating complex
geometries (bend, valves, fl anges)
• Vulcanization containers for up to 20 meter
pipes or other structures.
• Coating machine for Corrosion and Passive Fire
Protection coating up to 20 meters pipes Robust
and easy application process for use of local
personnel.

74 I TRELLEBORG OFFSHORE
Thermal Insulation Container 1 Extruder 20”

Container 2 Spindel station 20”


Thermal Insulation is necessary to avoid formation Container 3 Workshop/storage 20”
of hydrate plugs and wax build-up in subsea Container 4 Curing 1 (Heater) 40”
structures. The build-up begins when the oil/gas
Container 5 Curing 2 (Extension) 40”
composition temperature is not maintained and
begins to cool. Without thermal insulation the
cold seawater rapidly cools down the oil, forming Corrosion protection
hydrate/ wax blockages making it impossible for a
safe flow. Combating all kinds of severe corrosion has been
a focus of our business for more than 60 years.
Passive Fire Protection Rubber is chemically resistant to most corrosive
liquids, gases, salt water, ozone and UV-light; all
The Passive Fire Protection system contains corrosive agents commonly encountered in the
our unique Firestop Technology and withstands offshore sector. Anywhere steel is exposed to
all types of fire, including jet fire and is blast and corrosion it can be protected with a rubber lining.
impact resistant. Passive Fire Protection is used to
protect personnel, assist emergency activity, buy Offshore installations producing oil and gas have
time to gain control of fire and evacuate the area. a great need for protective coatings and linings
so that they can operate safely and continuously
for the life of the fields, up to 50 years.

TRELLEBORG OFFSHORE I 75
Odin
The Intelligent Choice

From passive fire protection to floatover solutions, Odin Bearings - Trelleborg bearings mainly play
protecting your topside productivity takes a deep a role in relieving load movement or noise
well of engineering and industry know-how. Odin reduction. Our bearings are commonly used in
by Trelleborg offers unique polymer solutions offshore oil and gas industries – particularly
engineered with the depth and breadth of in ships such as floating production storage
knowledge that only decades of industry-leading and offloading units (FPSO) and floating LNG
success in the offshore world can provide. production and storage units (FLNG).

Odin Flexible Piping System - Technological Odin Protection - Odin Protection protects people,
developments have revolutionized deep water structures and equipment from all types of fire
drilling and production in recent years and and corrosion in offshore environments, including
the need for high performance, robust and protecting the riser itself. In the demanding
dependable topside solutions has never been offshore environment Riser Protection is
greater. In an emergency it is paramount that the paramount to ensuring on-board safety.
deluge system delivers water where it is needed
at the correct pressure, no matter the situation. Odin Floatover - Our comprehensive polymer
solutions for the float over installation process
Odin Passive Fire Protection - Protecting topside are utilized for energy absorption, vibration
equipment and structures provides time to reduction and movement tolerance. The critical
evacuate people, close down critical equipment nature of a float over process demands only the
and for responders to gain control of the fire. highest performing solutions, and we spare no
Our Firestop™ material can be used for different expense in pinpoint engineering and stringently
Topside applications to ensure safety comes first. testing our technology.

Odin Jacket - Trelleborg’s jacket leg can systems


are designed to encompass the
sealing needs during the
installation of an oil and gas
platform’s substructure.

76 I TRELLEBORG OFFSHORE
Elastopipe™

A flexible
piping system
Technological developments have revolutionized seawater, and Fire and oil Resistant (FOR) for
deepwater drilling and production in recent years hydrocarbons, solvents, additives, acids and
and the need for high performance, robust and hydrogen sulphide.
dependable topside solutions has never been
greater. In an emergency it is paramount that the Elastopipe™ has been installed on offshore
deluge system delivers water where it is needed at facilities globally since 1998. It is approved for
the correct pressure, no matter the situation. use in 150lb systems and is rated up to 20 bar.
Manufactured from reinforced synthetic rubber,
Regardless of explosions, impact from flying debris, Elastopipe™ is non-corroding and can withstand jet
project lifetime, or jet fire, the piping system needs fire with a heat flux of 390kW/m2 and temperatures
to operate safely and effectively every time.Current above +1400°C/+2552°F for one hour. This
rigid piping systems, whether metallic or fiberglass, makes it an ideal material choice for use in any
have potential limitations including loss of pressure critical piping system on offshore oil and gas
over time, increased corrosion potential, stress installations and ships, as well as many other
cracking, weakness against impact or explosion, hazardous environments
and increased testing and maintenance costs.
If replacing a deluge system,Trelleborg offers
Trelleborg offers a new way of piping with the a temporary deluge system providing complete
first corrosion-free, explosion, impact, and jet fire firewater coverage during demolition orinstallation
resistant flexible piping system called Elastopipe™. activities.This combined with no hot work allows you
This next generation system uses synthetic rubber to continue producing throughout the replacement
instead of traditional materials and is the only process.
piping material approved for offshore deluge
systems that has survived sequential explosion, Elastopipe™ has been independently tested and
impact and jet fire testing. Elastopipe™ is a certified by DNV, as well as approved by Lloyds,
patented flexible piping system developed for RMRS, ABS and the US Coast Guard.
transporting a variety of fluids and is available in
two versions: Fire Resistant (FR) for fresh and

TRELLEBORG OFFSHORE I 77
Applications:

• Fire water distribution


• Utility systems
• Nitrogen distribution systems
• Drain water
• Chemicals and hydrocarbo transportation
• Foam systems

Benefits:

• 100% corrosion free


• Explosion, impact and jet fire resistant
• Lower total installation costs compared to rigid
pipes
• Maintenance-free operation during 30 year
lifespan
• Minimizes marine growth compared to traditional
materials
• No welding or hot work
• Quick and easy to install
• Reduces water hammer
• UV resistant

78 I TRELLEBORG OFFSHORE
Odin DG (Drain Gully)

Process deck
fire integrity

To maintain the fire integrity between process deck process area and can be provided as either an
modules, gaps and openings must be sealed to open or closed collection system.
ensure the safety of onboard personnel during
a fire event. Rubber Odin DG (Drain Gully) systems Odin DGs can operate as a simple collection
designed by Trelleborg Offshore are installed system suitable for chemicals, produced waters
between deck modules bridging any gap that exists and rinse water waste and can incorporate blast,
between the structures. jet fire and hydrocarbon pool fire protection
as required. The flexible Odin DG system is
The flexible sealing systems allows for provided in pre-fabricated sections, engineered
misalignments, angular deviations and eliminate and designed to meet the exact requirements
concentrations of stress while reducing vibration requested by the customer. They can be installed
and dynamic loads between structures. The during the initial platform or rig construction
systems provide passive fire protection from all or can be provided as a direct replacement for
types of fires in the extreme offshore operating existing steel gutters. The system is bolted or
environments to ensure the safety of people, welded onto offshore structures and can be easily
structures and equipment. While minimizing fire adjusted on site when needed.
escalation, the rubber sealing systems provide
time to evacuate personnel, close down critical
equipment and give first responders additional
time to gain control of the fire.

The flexible Odin DG systems from Trelleborg


Offshore are designed to be an alternative to
ridged steel gutters onboard platforms and rigs on
the process deck and other areas of the platform
where the collection of fluids is a requirement.
Odin DG is designed to absorb all structural
movements and also acts as a drainage system
for possible spill and waste runoff from the

TRELLEBORG OFFSHORE I 79
Applications:

• FPSO
• Platforms
• Rigs
• FLNG

Benefits:

• Flexible, durable material


• Rated to hydrocarbon and jet fire conditions
• Blast, chemical, UV, ozone and saltwater resistant
• Maintenance free
• 30+ year design life

80 I TRELLEBORG OFFSHORE
Escape Tunnel - Seal

Flexible
safety
To maintain the fire integrity on an offshore Escape Tunnel Sealing systems from Trelleborg
installation during a fire, gaps and openings must Offshore provide a flexible joint for escape tunnels
be sealed to ensure the safety of onboard between rigid module sections on offshore
personnel. Rubber seal systems designed by structures such as rigs and platforms. The
Trelleborg Offshore are installed between openings system allows structural movement of the escape
bridging any gap that exists between structures. tunnel between the modules during normal and
adverse conditions while absorbing all structural
The flexible sealing systems allows for movements.
misalignments, angular deviations and eliminate
concentrations of stress while reducing vibration The blast, jet fire and hydrocarbon pool fire resistant
and dynamic loads between structures. The system is suited for use on new build structures
systems provide passive fire protection from all or during the modification of existing tunnels and
types of fires in the extreme offshore operating is engineered to meet the exact requirements
environments to ensure the safety of people, requested by the customer. Each escape tunnel
structures and equipment. While minimizing fire seal can be customized and prefabricated to fit
escalation, the rubber sealing systems provide customer specific installations. The system is bolted
time to evacuate personnel, close down critical or welded onto offshore structures and can be
equipment and give first responders additional time easily adjusted on site when needed.
to gain control of the fire.

TRELLEBORG OFFSHORE I 81
Benefits: Applications:

• Flexible, durable material • FPSO


• Rated to hydrocarbon and jet fire conditions • Platforms
• Blast, chemical, UV, ozone and saltwater resistant • Rigs
• Maintenance free • FLNG
• 30+ year design life

82 I TRELLEBORG OFFSHORE
Firestop™

Meets fire requirements


in all industries
Firestop™ is a passive fire protection material
used to protect personnel and equipment by
minimizing fire escalation by providing time to
evacuate people, close down critical equipment
and for responders to gain control of the fire.
The certified rubber based material protects
structures from exceeding critical temperature
limits.

The dampening, noise reducing, flexible nature


of Firestop™ can also protect equipment from
vibrations, collisions, explosions and even
earthquakes. Firestop™ is tested to withstand
a blast up to 2.1 bars and jet fire resistant for
more than 2 hours.

The Firestop™ material can be tailor-made to suit


any customer specific need. It can also be coated
or extruded on pipes or structures, extruded as a
specific profile, or molded as a component.
Firestop™ is designed to meet all fire scenarios
including J120, J60, J30, H120, H60, H0, A60, A0,
B30, and B15.

TRELLEBORG OFFSHORE I 83
Applications: Benefits:

The Firestop™ system can be supplied in various • 40+ years design life
material combinations to meet your project specific • Excellent mechanical properties
requirements which may include: • Explosion resistant
• Flame retardant
• Fire protection • Halogen-free
• Corrosion and HISC protection • No smoke or toxicity
• Mechanical protection • Oil & mud resistant
• Thermal insulation • UV, ozone and water resistant
• Antifouling

84 I TRELLEBORG OFFSHORE
Linear Seal

Flexible
joints
To maintain the fire integrity on an offshore Linear Sealing systems from Trelleborg Offshore
installation during a fire, gaps and openings provide a flexible joint for any gap between rigid
must be sealed to ensure the safety of onboard module sections on offshore structures such as rigs
personnel. Rubber seal systems designed by and platforms. The Linear seals are constructed
Trelleborg Offshore are installed between openings using Trelleborg Offshore’s unique multi-layer
bridging any gap that exists between structures. construction allows for different levels of protection
on the inside and outside surfaces of the seals.
The flexible sealing systems allows for As the system is flexible, it allows for relative
misalignments, angular deviations and eliminate movement between structures during normal and
concentrations of stress while reducing vibration adverse conditions.
and dynamic loads between structures. The
systems provide passive fire protection from all The linear seals are engineered to meet the exact
types of fires in the extreme offshore operating requirements requested by the customer and are
environments to ensure the safety of people, typically installed in the initial construction phase of
structures and equipment. While minimizing fire the risers to the platform, but can be manufactured
escalation, the rubber sealing systems provide to allow for retrofitting on existing platforms. The
time to evacuate personnel, close down critical system is bolted onto offshore structures and can
equipment and give first responders additional time be easily adjusted on site when needed. Linear
to gain control of the fire. seals can be rated for blast, jet fire, hydrocarbon
pool fire or simply provide a weather resistant seal
for operations in extreme conditions.

TRELLEBORG OFFSHORE I 85
Applications: Benefits:

• FPSO • Flexible, durable material


• Platforms • Rated to hydrocarbon and jet fire conditions
• Rigs • Blast, chemical, UV, ozone and saltwater resistant
• FLNG • Maintenance free
• 30+ year design life

Pipeline installation

86 I TRELLEBORG OFFSHORE
Odin R (Riser PFP)

Passive
Fire Protection 

Risers are critical structures in the event of a


fire, as hydrocarbons are transported inside the
risers. Our Odin R (Riser PFP) rubber material
Firestop, significantly delays escalation of
temperature rise in steel to provide time to
evacuate people, close down critical equipment
and for responders to gain control of the fire.
Firestop is tested to withstand a blast up to
2.1 bars and jet fire resistant up to 2 hours. Type
approved in accordance with ISO834-3 (HC Fire)
and ISO22899-1 (Jet Fire).
Pipe
Due to being in the harsh environment of the Firestop fire protection/thermal insulation
splash zone, the risers must withstand massive Mechanical protection
wear. The dampening and flexible nature of
Firestop also protects equipment from corrosion,
vibrations, movement, collisions, explosions and
earthquakes.

In addition to do the application of rubber in our


factory, we can also carry out the coating onsite
by using Trelleborg Offshore’s Mobile Production
Unit, MPU. This reduces cost, time as well as Firestop fire protection with reinforcement
enabling usage of local personnel.
Corrosion protection

TRELLEBORG OFFSHORE I 87
Benefits: Features:

• Combine blast, jet and pool fire protection • Operating temperature range:
• Anti-fouling properties -50 °C to +150 °C / -58 °F to +302 °F
• Maintain flexibility of the riser • Elastomeric system
• Impact resistant • Low generation of smoke and non-toxic fumes
• Excellent corrosion/HISC protection • Ozone resistant (ISO 1431-1)
• Maintenance free • Sea water resistant (ISO 1817)
• More than 30 years design life • UV resistant
• Tested according to ISO 834-3 (Pool Fire) and
ISO 22899-1 (JET Fire)
• Type Approval Certificate issued by DNV GL

88 I TRELLEBORG OFFSHORE
Radial Seal

Riser penetration
protection

To maintain the fire integrity on an offshore As the steel risers are being routed through the
installation during a fire, gaps and openings various decks onboard a platform, there is a need
must be sealed to ensure the safety of onboard to protect the penetration areas to maintain the
personnel. Rubber seal systems designed by fire rating of the area. Radial Sealing systems
Trelleborg Offshore are installed between openings from Trelleborg Offshore provide a flexible joint
bridging any gap that exists between structures. between the riser and the deck area by attaching
to the riser and caisson insuring a tight seal that
The flexible sealing systems allows for
is both weather and fire rated. The system allows
misalignments, angular deviations and eliminate
structural movement of the risers during normal
concentrations of stress while reducing vibration
and adverse conditions.
and dynamic loads between structures. The
systems provide passive fire protection from all
types of fires in the extreme offshore operating The radial seals are engineered to meet the exact
environments to ensure the safety of people, requirements requested by the customer and are
structures and equipment. While minimizing fire typically installed in the initial construction phase of
escalation, the rubber sealing systems provide the risers to the platform, but can be manufactured
time to evacuate personnel, close down critical to allow for retrofitting on existing platforms. The
equipment and give first responders additional time system is bolted or banded onto offshore structures
to gain control of the fire. and can be easily adjusted on site when needed.
Radial seals can be rated for blast, jet fire,
hydrocarbon pool fire or simply provide a weather
resistant seal for operations in extreme conditions.

TRELLEBORG OFFSHORE I 89
Applications: Benefits:

• FPSO • Flexible, durable material


• Platforms • Rated to hydrocarbon and jet fire conditions
• Rigs • Blast, chemical, UV, ozone and saltwater
• FLNG resistant
• Maintenance free
• 30+ year design life

Pipeline installation

90 I TRELLEBORG OFFSHORE
Vikodeck™

Ensuring
onboard safety

Safety on offshore oil and gas installations is of


paramount importance, and having effective and
reliable surface protection is vital to ensuring
onboard safety. In the harsh offshore and onshore
oil and gas industry, operators need the assurance
that their surface protection delivers proven
performance for their installations, without fail.

Vikodeck™ is designed to offer surface protection


against blast, jet and pool fire in harsh offshore
oil and gas environments. It can be tailored to
withstand various chemical and mechanical
conditions to provide you with performance at
every level. In addition it is an excellent corrosion
protection and provides anti-fatigue dampening
support for the comfort and safety of your
employees.

Vikodeck™ has been tested and can withstand


cryogenic spills of cold liquids such as LNG
and will regain its flexible properties following
cryogenic exposure. It is normally delivered in one
square meter sheets, but can be can be drilled,
cut or shaped to fit the area of installation to suite
any surface to provide you with performance at
every level.

TRELLEBORG OFFSHORE I 91
Benefits:

• Abrasion resistant
• Blast resistant
• Can be painted
• Flexible
• Maintenance free
• No hot work required
• Quick and easy to install
• Resistant to Ozone and UV light
• Seawater resistant
• Sound dampening

All joints & outward


facing surfaces to be filled
with adhesive

C
C

Plan
Detail A
Scale 1:2 A 1000x1000
Sheets of vikodeck

Use adhesive
Spreading comb
Simson MSR Adhesive 5-8 mm
Underside of vikodeck to be
sandblasted / grinded
Simson MSR adhesive spread Deck Surface
evenly over entire contact surface
Spray mist of water over
adhesive surface to cure adhesive

Gap as small as possible,max 10 mm filled with SIMSON MSR


Lay adhesive evenly with approx. 50
50 mm distance between strips
10 Approx Vikodeck
Simson MSR
Deck

Section C-C
Scale 1:2 Pipeline installation

92 I TRELLEBORG OFFSHORE
FireNut™

Fire protection of
nuts and bolts

In refineries, offshore oil installations or wherever require certified personnel for installation.
hydrocarbons are transported, the pipes are
flanged and held together with nuts and bolts. In FireNut™ is based on Trelleborg Offshore’s
case of fire, the flanges and pipes should maintain Firestop™ material, which combines extreme fire
the same level of integrity to avoid escalation. protection with other unique rubber capabilities.
Traditional protection is to capsule the whole valve Trelleborg Offshore has delivered Firestop™ based
and flanges in a fire-insulated metal box - a bulky, products to the offshore industry for more than 30
heavy and expensive solution. The box also creates years.
challenges during inspection and maintenance.
Trelleborg Offshore has developed a jet fire
protection for bolted connections to extend service
life in the event of a fire. It helps the
bolts and flanges to maintain their level of integrity
and avoid escalation.

The easy to install FireNut™ resists both jet fire and


pool fire and is tailor made to accommodate almost
any bolt size. The rigid and tough design means
that FireNut™ has extremely good resistance to
mechanical damage when installed.

FireNut™ is hand mounted by screwing it on to


the bolt. It protects each bolt separately, allowing
for easy inspection as well as lowering weight
and occupying less space. The FireNut™ system
simplifies installation, inspection and maintenance
of flanges, increases efficiency and reduces costs.
It can be re-used after disassembly and does not

TRELLEBORG OFFSHORE I 93
Benefits: Applications:

• High resistance to blast, impact, ozone, UV, • FireNut™ has been installed on a number of
most solvents and seawater offshore constructions worldwide
• Jet fire tested according to ISO standard • FireNut™ can be applied to both new and old
22899-1 bolts and flanges
• Extends time to rupture up to 4 times • FireNut™ is a product that is not just restricted
• Excellent protection from HISC, corrosion, and to offshore high pressure flanges, but can be
mechanical damage and wear
used in any other context where bolt and nut
• Easy installation, no maintenance and easy to
protection is required.
inspect
• Long service life
• No hot work
• Weight and space savings
• Tailor-made to accommodate almost any
bolt size
• FireNut™ comes in a number of sizes and
variations, to ensure they are easy to install
in all environments

94 I TRELLEBORG OFFSHORE
Odin MB (Module Bearings for FPSO /FLNG)

Odin Bearings-
FPSO/FLNG Solutions
Wave action results in multi-directional loads Our flexible rubber bearings are designed and
between the hull and the topside modules in manufactured to meet your requirements and
offshore oil and gas vessels such as Floating needs. The rubber bearings are flexible support
Production Storage and Offloading (FPSO) units and points used in structures to handle vertical,
Floating Liquefied Natural Gas (FLNG) production horizontal or rotation loads. The result is an elastic
and storage units. So, elastomers are an ideal link between solid structures, which reduces
form of maintenance-free material for offshore material fatigue, distributes load and dampens
applications where energy absorption and vibration vibration. The bearings can carry very large loads
reduction combine with movement tolerance is while providing flexibility. The bearings are often
required. steel-lined and are designed to accommodate axial
motions, as well as displacement and rotational
Our Odin MB (Module Bearings for FPSO /FLNG) movements in many different designs. Rubber and
is a solution suitable for any application where steel are vulcanized together in layers to form these
heavy loads need to be controlled, dampened bearings.
or protected. These are laminated rubber
bearings and are installed between the hull A variety of high to medium load bearings can be
stools and its modules on the vessel. They are manufactured to suit all specifications. Our Odin
used to accommodate axial, shear and rotational MBs are commonly used in offshore oil and gas
movement. It plays a big role in relieving load industries - particularly in ships such as FPSOs and
movement or noise reduction. FLNGs production and storage units. Our Odin MBs
provide the necessary vibration isolation for the
We use advanced modelling techniques such as processing modules on these vessels and with our
Finite Element Analysis (FEA) to predict the stress specially formulated elastomer compound, it has
versus strain characteristics and study the fatigue resistance to oil-based process liquids.
life of our bearings.

TRELLEBORG OFFSHORE I 95
Benefits: Passive Fire Protection Solutions

• Heavy load. Rubber can handle heavy loads with Passive Fire Protection (PFP) solutions can be
its unique ability to be flexible while maintaining implemented to minimize damage caused by fires
integrity to oil platforms and vessels, and protects offshore
• Custom design. Our engineers design personnel.
the construction to meet flexibility and load
specifications Fire and blast protection of facilities that
• The high-quality steel and rubber provide a produces, refine, process and transport oil and
maintenance free installation gas are of paramount importance. The safety and
• Experience Successfully installed and in operation environmental implications of such protection
today takes on an even greater role in offshore facilities.
• Customized with FEA modelling techniques These remote and isolated assets require sufficient
• Dampen loads, reduce vibrations and lessen protection in the event of fire and explosion to
noise enable personnel sufficient time to escape and
• Design to accommodate axial, shear and shutdown critical process lines.
rotational movement
• Design Life of more than 30 years Why PFP?
• More cost effective and maintenance free against
pot bearing • Delays catastrophic failure of the critical
• More efficient and economical than steel pot supporting structure and escape routes for
bearings personnel evacuation.
• Option to insulate against H-60 fire rating • Provides fire protection for critical equipment,
• Protect FPSO/FLNG vessel modules from damage structure.
• Reduce stress and strain characteristics between • Assists in emergency response activities
hull and module support (augments active fire protection).
• Isolates different compartments/modules to
Applications: achieve separate fire and blast protection.

• Floating Production Storage and Offloading (FPSO)


units
• Floating LNG (FLNG) Production and Storage units

We offers fire resistant polymer


solutions for numerous offshore
applications too.

96 I TRELLEBORG OFFSHORE
Odin CP (Corrosion Protection)

Odin
Protection

In the offshore industry, offshore oil and gas Because of its elasticity and strength, elastomer
platforms are constantly exposed to the demanding wears extremely well. It provides excellent
and volatile offshore environments. Structures protection against sharp and abrasive particles,
which are installed in the offshore environments including mechanical impact protection.
must be built to withstand the harsh offshore
environments to ensure on-board safety and safe
operation.

Hence, whenever the steel is exposed to corrosion;


it can be protected with a robust rubber lining.
A platform’s riser pipes can be protected from
corrosion by applying elastomer coating. Elastomer
coating is widely recognized in the offshore industry
as the most effective method of riser corrosion
protection, particularly in the highly corrosive splash
zone region.

Our Odin CP (Corrosion Protection) uses elastomers


which are chemically resistant to most corrosive
liquids, gases, salt water, ozone and UV-light;
all corrosive agents commonly encountered in
the offshore sector. In general, whenever steel
is exposed to corrosion, it can be protected with
elastomer lining.

TRELLEBORG OFFSHORE I 97
Applications:

For offshore industry: For general industry:

• Ballast water tanks • Tanks and towers


• Deaerator tanks • Vats and other vessels
• Salt water spools • Fans and pumps
• J-tubes • Pipes and fittings
• Riser pipes • Stirring machines
• Stilling tubes • Other components exposed to abrasion
• Platform legs
• Platform braces
• ESD-valves
• Actuators
• Accumulators
• Manifold piping

Benefits:

• Anti-fouling
• Corrosion Protection - Chemically bonded to
substrate with excellent HISC corrosion protection
• High resistance - High abrasion, chemical, wear,
blast, impact, jet fire, ozone, UV and water
resistant
• Prevent Cathodic Disbondment
• Service temperature range -50°C/-58°F to
155°C/311°F
• Various rubber options - Natural rubber, Hard
Natural Rubber, Polychloroprene (Neoprene),
EPDM, Butyl, Hypalon, and Butadiene

98 I TRELLEBORG OFFSHORE
Odin EBR (Eccentric Bumper Ring)

Odin
Protection

Boat landings for offshore oil and gas jacket are Our Odin EBRs are precisely designed rings of
built to absorb the impact energy from berthing rubber which are mounted on top of a Shock Cell
boats or vessels. The Boat Landing System consists to provide more energy absorption performance.
primarily of the Eccentric Bumper Ring (EBR), We essentially utilize the elastomer’s unique
Shock Cell and Rub Strip. It plays the important role ability in deflecting normal and lateral impact to
of protecting the jacket and vessel when they are withstand the design stresses that is imposed on
berthing, while resisting the harsh environments at a jacket during barge and vessel operations. Our
sea and operating in even the most severe weather. elastomeric solution, with its internal damping
On impact by a berthing vessel, the steel surface effect, can resists high overloads without damage.
of the barge bumpers or rubber surface of the Rub
Strips transfers the load to the EBRs and the Shock
Cells.

Kinetic energy is absorbed and dissipated as heat


and a smaller reaction force against the vessel by
the rubber as it undergoes shear and compression.
The load is therefore reduced, and the vessel can
berth without damaging the jacket structure. The
strong bonding achieved between the elastomer
and the steel during the manufacturing process
ensures that this arrangement will safely dissipate
and reduce the external load without damaging the
jacket.

TRELLEBORG OFFSHORE I 99
Applications: Benefits:

• Offshore Platform Jacket structure • Provides additional energy absorption


• Wind Farm Turbine performance
• Protects substructures and berthing vessels
• Crucial supporting component to Shock Cells
• Extra load absorbing capability
• Preserves function and integrity of Shock Cells

100 I TRELLEBORG OFFSHORE


Odin FP (Fender Post)

Odin
Protection

The core components of the berthing system


play an important role in ensuring the safety of
berthing vessels. The damper unit of a berthing
system contains two steel pipes with a rubber layer
between them. The shock absorbing unit needs to
be used in combination with an Eccentric Bumper
Ring (EBR) and a barge enclosure. When a platform
supply vessel is docked at an offshore oil and gas
platform, the axial deflection and rotation of the
damping unit absorbs the impact load of the vessel.

The kinetic energy generated by the impact is


absorbed and dissipated as heat. When
subjected to shear and compression, the reaction
force of the rubber component of the damper unit is
reduced and the vessel can be safely berthed
without damaging the platform structure.

Our Odin FP (Fender Post) are used in


conjunction with our Odin SC (Shock Cells),
composed of high-quality steel, these Odin FPs are
mounted onto the Odin SC and when come into
direct contact with any berthing vessels, the impact
load will be safely absorbed, providing essential
protection to the offshore structure and vessel.

TRELLEBORG OFFSHORE I 101


Applications: Benefits:

•Offshore Platform Jacket structure • Fabricated using high quality steel


• Sturdy design to resist deformation
• Can be customized utilizing FEA methods
• Used with Shock Cells
• Offering a complete Boat Landing System solution

102 I TRELLEBORG OFFSHORE


Odin RCC (Riser Clamp Coating)

Odin
Protection
Riser clamps are frequently internally coated with
an elastomeric polymer, to prevent damage to the
riser clamp and the riser pipes during installation
and operation. As the Riser Pipes may move about
due to sea swell or weather conditions, the impact
of this motion will be mitigated by the riser clamp
coating.

The most common type of elastomer in this case


is polychloroprene (neoprene); it is resistant to
hydrocarbons and harsh marine environments,
especially in the splash zone. important. The
elastomeric coating can be either flat or ribbed
profile. It can be bonded by cold bonding (gluing)
or by hot bonding (vulcanization). Our professional
team is highly trained to provide on-site coating
services. The user can also choose to send the
clamp to us for coating before installation.

TRELLEBORG OFFSHORE I 103


Applications: Benefits:

• Anchors clamps • Prevent damage to riser pipes coating during


• Guided clamps installation and operation
• Field coating available
• Ribbed or Flat rubber profiles option
• In-situ coating application

104 I TRELLEBORG OFFSHORE


Odin RP (Riser Pipe Coating)

Odin
Protection

Oil & gas platform’s riser pipes can be protected Our services include field joint operations anywhere
from corrosion by applying elastomer coating. around the world. With specialized equipment and
Elastomer coating is widely recognized in the high-performance elastomers, we can achieve
offshore industry as the most effective method of on-site vulcanization. Our staff are qualified for
riser corrosion protection particularly in the highly offshore operations and have all necessary safety
corrosive splash zone region. and marine survival certification/training. We
have more than 20 years of service history in the
There are two common elastomeric coatings on offshore industry, and our track record makes us
the market today: Polychloroprene (Neoprene) and a preferred coating service provider. We have the
EPDM (Ethylene Propylene Diene Monomer). An ability to provide elastomer coatings anywhere in
additional option of anti-fouling coating can be the world.
added to the elastomer to inhibit marine growth.
This is achieved by applying a layer of elastomer
sheet coated with CuNi 90/10 granules and
chemically bonded to the riser rubber coating.

TRELLEBORG OFFSHORE I 105


Applications: Benefits:

• Riser pipes • Chemically bonded to surfaces, stronger than


• J-Tube mechanical bonds
• I-Tube • Elastomer layers can last the lifetime of the jacket
• Pipes spools • Engineered to specifically protect against sea and
weather conditions
• Service temperature up to 130oC
• Excellent mechanical properties
• UV, Ozone and Water resistance
• Anti-fouling coating to inhibit marine growth

106 I TRELLEBORG OFFSHORE


Odin RS (Rub Strips)

Odin
Protection

Boat landings for offshore oil and gas jacket are Rub Strips are mainly installed at the contact point
built to absorb the impact energy from berthing between the berthing system of the offshore oil and
boats or vessels. The Boat Landing System consists gas platform and the mooring. In this way, it helps
primarily of the Eccentric Bumper Ring (EBR), Shock to safely absorb the impact loads of the berthing
Cell and a Rub Strip. It plays the important role vessel; providing the necessary protection to the
of protecting the jacket and vessel when they are offshore structure and ensures that the vessel is
berthing, while resisting the harsh environments at not damaged by the impact loads.
sea and operating in even the most severe weather.
On impact by a berthing vessel, the steel surface Our Odin RS (Rub Strips) are made of high-quality
of the barge bumpers or rubber surface of the Rub rubber that is designed to absorb impact energy
Strips transfers the load to the EBRs and the Shock and is free from maintenance once installed.
Cells.
To ensure that our customers’ needs are met, we
Kinetic energy is absorbed and dissipated as heat can manufacture Odin RS with a variety of profiles
and a smaller reaction force against the vessel by to suit different environments. The profile can
the rubber as it undergoes shear and compression. be solid or hollow and has a variety of mounting
The kinetic energyis therefore reduced, and the options.
vessel can berth without damaging the platform
structure. The strong bonding achieved between
the rubber and the steel during the manufacturing
process ensures that this arrangement will safely
dissipate kinetic energy and reduce damage to the
platform.

TRELLEBORG OFFSHORE I 107


Applications: Benefits:

• Offshore Platform Jacket structure • Provides energy absorption to prevent damage of


• FPSO / FLNG metal structure
• Low friction, durable and easy to install
• Protect oil and gas platforms and berthing vessels
• Wide range of profile models
• Features include anti-corrosion, anti-fouling and
weather resistance

108 I TRELLEBORG OFFSHORE


Odin SC (Shock Cell)

Odin
Protection
The core components of the berthing system Steel and rubber are chemically bonded together
play an important role in ensuring the safety of during the manufacturing process to ensure that
berthing vessels. The damper unit of a berthing max applied kinetic energy is safely absorbed.
system contains two steel pipes with a rubber layer Rubber physical and chemical properties are
between them. The shock absorbing unit needs to important for producing a high quality Shock Cell to
be used in combination with an Eccentric Bumper withstand axial, shear and rotation effects.
Ring (EBR) and a barge enclosure. When a platform
supply vessel is docked at an offshore oil and gas Our Odin SC (Shock Cell) consists of 2 steel tubes
platform, the axial deflection and rotation of the and a rubber layer that chemically bonded both
damping unit absorbs the impact load of the vessel. tubes. both tubes.

The kinetic energy generated by the impact is Applications:


absorbed and dissipated as heat. When
subjected to shear and compression, the reaction • Offshore Platform Jacket structure
force of the rubber component of the damper unit is • Wind Farm Monopile
reduced. This load becomes smaller and the
vessel can be safely berthed without damaging the Benefits:
platform structure.
• Low maintenance
• Effectively and safely absorb a berthing vessel’s
kinetic energy by axial deflection
• Chemically bonded the metal and rubber
components

TRELLEBORG OFFSHORE I 109


Odin DSU (Deck Support Unit)

Odin Float Over


Solutions

When a topside of an offshore oil and gas platform


has been constructed, it needs to be loaded
onto a barge and be transported to the offshore
installation site.

The application of an Odin DSU is to reduce the


direct impact between the underneath of the
topside and the heavy transport barge.

Our Odin DSUs are engineered and specially


customized for every individual project, consisting
of a stack of elastomeric pads installed between
two steel casings. Odin DSUs are installed onto the
deck support frame of a barge. The topside is then
loaded onto this deck support frame and our Odin
DSUs act to absorb the weight of the topside; these
Odin DSUs support the integrated deck structure
and allow relative horizontal movement between
the topside and the deck support frame during the
transportation and mating process.

110 I TRELLEBORG OFFSHORE


Applications: Benefits:

• Oil & Gas Topside • Allow horizontal movement between the topside
• Mining and LNG Terminal Construction and deck support frame during the transportation
• Offshore Wind High Voltage Direct Current (HVDC) and mating process
Topside • Provide proper spring stiffness of the topside
when placed on an integrated deck structure
• Tailor-made engineering solutions to suit the
environment and application’s needs
• Full-scale compression test up to 18,300MT

TRELLEBORG OFFSHORE I 111


Odin LMU (Leg Mating Unit)

Odin Float Over


Solutions

Float over is a proven technology of installing a Our Odin LMUs consist of a steel structure
heavy topside of an offshore oil & gas platform to incorporating engineered elastomeric pads,
a substructure out at sea. The process involves the it can be installed either in the topside or the
heavy barge ferrying the topside to the installation substructure. They can absorb immense loads
site and the mating process begins; the barge and minimizes the risk of damage created as the
maneuvers into position between the jacket legs topside’s load is transferred to the jacket. The
and aligns the topside with the substructure before elastomeric pads in our Odin LMUs are designed
it ballasts, slowly connecting the topside onto the to absorb the static and dynamic forces of the
jacket substructure. topside structure and relieves the horizontal
forces generated by the sea surface movements
As the weather and sea conditions can be harsh in during the float over mating operation. After the
an offshore environment, our float over solutions installation is completed, the topside leg cans are
help to ensure the transportation and installation welded to the substructure.
goes flawlessly, including keeping the topside and
substructure safe during the mating process. Our Odin LMUs are tailored to each individual
project, with the highest engineering levels and
During the barge ballasting operation, vertical and subjected to rigorous testing for performance
horizontal compression will occur on our Odin LMUs guarantees. Designed and built to the highest
(Leg Mating Unit) till the topside leg cans are in standards, we have applied to many projects
contact with the jacket leg. To stabilize the mating around the world, and have been proven in safety,
process, sway fenders will be in action as well. reliability and quality.
Finally, decompression will occur on our Odin DSUs
(Deck Support Unit), and effectively transferring the
topside’s weight from the barge to the substructure.
For this, our Odin float over hardware plays a
key role in the mating process for the float over
operation.

112 I TRELLEBORG OFFSHORE


Applications: Benefits:

• Oil & Gas Topside • Assist in the transfer of static & dynamic load
• Mining and LNG Terminal Construction from the barge ferrying the topside to the sub
• Offshore Wind High Voltage Direct Current (HVDC) structure during float over operation
• Decommissioning Topside • Capability to absorb immense topside loads
during mating process
• Cost-effective and time efficient comparing to
conventional platform installation methods
• Tailor-made engineering solutions to suit the
environment and application’s needs
• Reliable even in adverse weather conditions
• Full-scale compression test up to 18,300MT

TRELLEBORG OFFSHORE I 113


Odin SSF (Sway and Surge Fender)

Odin Float Over


Solutions

Barge or jacket fendering systems are used during Our Odin SSFs can be custom designed to comply
the float over operation and protect against damage with the client’s specified stiffness requirements in
arising from potential impact between the barge both compression and shear. Trelleborg can offer
and the substructure legs during the entrance, a cost-effective system for attaching the fenders to
mating and exit phases. The fenders also assist in the barge structure, if required.
limiting the barge movement during this operation.

Odin SSFs (Sway and Surge Fender) are used to


limit the motion of the barge within the confines
of the jacket slot and reduce the transport barge’s
impact loads on the jacket legs, especially as it
moves forward or sideways during the mating
operation.

This helps avoid collisions and damage to the


foundation, barges and topside. Odin SSFs use
special rubber parts, which can absorb the impact
force caused by the barge’s movement and relieve
the impact of the barge onto the foundation
structure, thus preventing damage between each
other and satisfying the design safety spacing.

114 I TRELLEBORG OFFSHORE


Applications: Benefits:

• Oil & Gas Topside • Efficiently and safely absorb impact loads
• Mining and LNG Terminal Construction • Easy to install and removal after float over
• Offshore Wind High Voltage Direct Current (HVDC) operation
• Decommissioning Topside • Limit the movement of the transportation barge
during ballasting operation
• Mitigates forward and sideways movement during
the mating phase
• Protect against damage arising from potential
impact
• Protect substructure and transport barge during
float over operation

TRELLEBORG OFFSHORE I 115


Odin DC (Diaphragm Closure)

Odin
Jacket
During the offshore substructure installation Trelleborg’s Odin jacket leg can system is
phrase, jackets are designed to be either self- designed to encompass the sealing needs during
upending or upended with the assistance of the installation of an oil and gas/HVDC jacket
ballasting system or crane vessel. In order to substructure.
ensure that the launched jacket can maintained the
buoyancy and upend itself at the launch sequence,
diaphragm closures are used to seal the jacket legs
and skirt sleeves. It is an effective procedure that
not only enable the jacket to float in the sea but
also making it easy to manoeuvre the installation
movement on site.

Our Odin DC (Diaphragm Closure) is made from


highly reinforced rubber and designed to withstand
the hydrostatic pressure during jacket flooding
operations. It is designed and fabricated with the
highest quality polymers to ensure efficient, reliable
performance. These closures are attached to the
legs and skirt sleeves by means of fastening ring/
flanges that also hold the rubber diaphragms.
They can be quickly and easily pierced by the pile
or by a cutting device to facilitate the installation
movement. We can custom design our Odin DC to
your specifications and to suit special operating
conditions.

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Applications: Benefits:

• Offshore Jacket structure • Provide buoyancy during installation of


• Skirt Sleeves substructure
• Pile transportation • Fabricated using high quality steel and reinforced
rubber
• Stringently tested to meet performance
specifications to 1.5 times of operating pressure
• Option to supply as Complete Leg Can System
• Precisely assembled in our state-of-the-art
manufacturing facility
• Custom design to suit operating conditions
• Several variants to suit customer needs

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Odin GS (Grout Seal)

Odin
Jacket

Once an offshore oil and gas /HVDC jacket is Trelleborg’s Odin jacket leg can system is
constructed, it will be transported to the offshore designed to encompass the sealing needs during
installation site where it will be upended and the installation of an oil and gas /HVDC jacket
descended onto the seabed. In order to ensure that substructure.
the jacket is securely fixed to the seabed, piles are
driven through the jacket legs or the skirt sleeves. Our Odin GS (Grout Seal) provides a reliable and
robust sealing between the inner diameter of the
The annulus between the pile and the jacket leg or jacket/skirt and the outer diameter of the pile.
skirt sleeves will be sealed by grout seal.It seals the Our Odin GS can also be used as standalone. Our
annular gap to ensure that no leakage can occur Odin GS can tolerate reverse movement and offset
during grouting. The grout will provide a reliable position in the pile. We can design and supply a
bond to keep the jacket secured and stable. The total sub-structure leg can system solutions to your
grout seal helps to keep the grouting process free specification.
from contaminants and thereby reinforces the
integrity of the substructure.

118 I TRELLEBORG OFFSHORE


Applications: Benefits:

• Offshore Jacket Substructure • Easy installation


• Skirt Sleeves • Provides reliable sealing between Jacket ID and
• LNG Terminal Construction Pile OD
• Mining Terminal Construction • Hydrostatic tested to 1.5 times of the operating
pressure
• Can be utilized on their own in certain
environments
• Prevent mud contamination during grouting
process
• Tolerate reverse movement of the pile
• Tolerate to maximum offset position of the pile

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Odin SPG (Skirt Pile Gripper)

Odin
Jacket

The fundamental requirement of an offshore oil and Trelleborg offers a complete substructure leg can
gas platform is the need for a secure and stable system solution from a single source, simplifying
foundation to ensure the safety and seamless control and improving efficiency from purchase to
operation during offshore drilling. delivery and reducing the risks associated with
platform installation, through its Odin SPG, Odin GS
Grouting method is used to secure the platform (Grout Seal), Odin GP (Grout Packer) and Odin DC
foundation onto the seabed through piling and the (Diaphragms Closure). You can now specify a total
skirt pile gripper which is welded onto the upper of substructure leg can system from Trelleborg.
the jacket skirt pile, helps to hold the piles firmly
in position, providing a temporary retention of Our custom-made skirt pile gripper is available for a
the jacket’s elevation position during the holding capacity of between 300MT and 3500MT.
leveling operations and grout process until the
grout between the pile and the jacket has set and Trelleborg’s in-house engineering capabilities
the installation is completed. provide customers with the technical expertise and
know-how to design, model, fabricate and test a
Trelleborg’s Odin jacket leg can system is designed skirt pile gripper to ensure a high quality, custom-
to encompass the sealing needs during the made, fully certified product.
installation of an oil and gas platform substructure.
Our Odin SPG (Skirt Pile Gripper) combines
the best in engineering capability with global
offshore expertise to deliver a more efficient skirt
pile installation and performance, completing
Trelleborg’s solutions package for jacket leg can
system. Our custom designed Odin SPG delivers a
firmer grip on the pile with its unique biting teeth for
increased contact area. This fixing method reduces
risk during platform installation, as it guarantees
stable working conditions, even in inclement
weather.

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Odin SPG sensors Benefits:

When the Odin SPG is in operation, the main source • Odin SPG sensors that monitor the pressure
of down time is not being able to predict failure in distribution of the cylinders
the primary air piping line. If this is not detected, • Reduces risk during jacket installation
the cylinder will lose pressure and fail. This then • Maximizes skirt pile installation efficiency
causes downtime, while the secondary air piping • Works with all offshore oil & gas and windfarm
line is activated. Trelleborg’s Odin SPG sensors HVDC jackets
can be activated to detect loss of pressure, so • Enhanced quality control through complete
that the secondary air piping line can be activated design, testing, steel fabrication and assembly of
before the primary air piping line fails or more all components in-house, including HPU, ROV.
pressure can be added to the primary air piping • Offer stability in grouting operation Holding
line. Therefore, reducing the down-time during capacity from 300MT to 3500MT
installation. • Option to supply with our Odin DC (Diaphragm
Closure) and Odin GP (Grout Packer)
Applications: • Full-scale In-house testing

• Offshore Platform Jacket structure


• Skirt Sleeves
• Jacket Gripper

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Odin GP (Grout Packer)

Odin
Jacket

Once an offshore oil and gas jacket is constructed, contaminants and thereby reinforces the integrity of
it will be transported to the offshore installation the substructure.
site where it will be upended and descended onto
the seabed. In order to ensure that the jacket is Applications:
securely fixed to the seabed, pile is driven through
the jacket leg or the skirt sleeves. • Offshore Jacket Substructure
• Skirt Sleeves
The annulus between the pile and the jacket leg • LNG Terminal Construction
or skirt sleeves will be sealed by inflatable grout • Mining Terminal Construction
packers. When fully inflated by a gas or liquid, it
seals the annular gap to ensure that no leakage Benefits:
can occurs during grouting. The grout will provide a
reliable bond to keep the jacket secured and stable.
• Easy installation
The inflatable grout packers are critical application
• Ensure no leakage of grout
to the offshore platform.
• Reliable and robust design
• Fabricated using reinforced rubber
Trelleborg’s Odin jacket leg can system is
• Provides reliable sealing between Jacket ID and
designed to encompass the sealing needs during
Pile OD
the installation of an oil and gas /HVDC jacket
• Hydrostatic tested to 1.5 times of the operating
substructure.
pressure
• Supply in different sizes
Our Odin GP (Grout Packer) is made from reinforced
rubber and are subjected to strict quality control in
pressure testing and weld inspection. Odin GP can
be supplied in different sizes to meet your project’s
requirements. Our meticulous manufacturing
process and design ensure perfect sealing and
proper slurry grout solidification. Odin GP can also
be supplied with our Odin GS (Grout Seal) which
helps to keep the grouting process free from

122 I TRELLEBORG OFFSHORE


Thor
The Trusted Choice

When you invest in essential surface equipment Thor Float - Surface Flotation provides the
like surface floatation and impact protection, you buoyancy needed for numerous commercial and
need resilience and reliability you can believe in. leisure activities with their associated vessels
Thor by Trelleborg is a unique series of polymer and port facilities as well as their facilities in the
solutions for surface protection, that are built with open sea
such strength and durability, you know they will
never let you down. Thor Fender - Impact protection is designed to
withstand the high energy impact occurring during
berthing of all vessels and ship to ship transfers
in open sea as well as fenders on small vessels.

Thor Buoy - Thor Buoy provides the buoyancy


needed for commercial and leisure activities with
their associated vessels and port facilities as
well as their facilities in the open sea.

For bespoke solutions please contact us

TRELLEBORG OFFSHORE I 123


Contact Us

Trelleborg Offshore delivers innovative and Brazil: +55 22 2106 4040


reliable offshore solutions that maximize business China: +86 137 9287 9241
performance to meet your needs. France: +33 3 44 23 03 50
Our dedicated and highly skilled staff are always Norway: +47 32 23 20 00
on hand to provide seamless process support from Singapore: +65 6265 0955
initial idea, through to delivery and beyond. United Kingdom: +44 1695 712 000
United States: +1 832 456 8300
Email: Offshore@trelleborg.com

WWW.TRELLEBORG.COM/OFFSHORE

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