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West Vigilant

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WEST VIGILANT

A LeTourneau Super 116-C, 350 fsw rated, 15k dual BOP jack-up. It is a modern
rig with numerous productivity-enhancing features including improved hydraulic
horsepower from larger and more powerful mud pumps, optimized pipe-handling
to facilitate “off-line” stand-building and a dual mud system which will allow for
the efficient and simultaneous handling of drilling and completion fluids.

GENERAL DRILLING EQUIPMENT


Design LeTourneau Super 116-C Derrick 32 ft x 35 ft x 170 ft

Keppel AmFELS Inc Brownville, Hooklload 1,300 kips


Built / Year
TX USA / 2008 Drawworks NOV 1625 UDBE 3,000 HP

Jack-up type Independent Leg jack-up Racking Capacity 25,000ft 5-1/2"

Major Upgrades Nil NOV TDS-8SA, 750 st 63,000 ft/lbs


Top Drive Cont Torque @ 95 RPM
Flag Panama
Classification ABS Pipe Handling PH-100

Class Notations +A1 Self-Elevating MODU Iron Roughneck NOV Model IR-30120

MAIN DIMENSIONS / TECHNICAL Rotary Table NOV D-495, 49.5"

Length x Breadth 243 ft 1" x 206 ft Power Slips NOV PS-21

Transit Draft 16 ft Autodriller Yes

Leg Length 477 ft Driller Instrumentation Yes

Usable Leg Below Hull 420 ft TUBULARS


Leg Spacing 142 ft Transverse / 129 Longitudinal Drill Pipe 5-1/2" DP

Spudcan Diameter 45 ft 10-1/2” WELL CONTROL


Design Water Depth 350 ft
Shaffer 21-1/4” 2k ABOP
Min. Water Depth 16 ft Cameron 20-3/4” 2k BOP
BOP Cameron 13-5/8” 10k ABOP
Drilling Depth 30,000 ft
Camron 13-5/8” 15k BOP
Drilling Envelope 70 ft x 30 ft
Variable Load 6,168 kips Diverter 30" Shaffer 1,000 psi

Helideck S61N C&K Manifold 15k psi Power Chokes

Helideck Compliance IMO Code ABS Class BOP Hoist 2 x Ingersoll Rand hoists x 82.6 st

Accommodation 102 Conductor Tensioner 300 kips

STORAGE CAPACITIES MUD SYSTEM


Fuel 2,024 bbls Mud Pumps 3 x LEWCO w-2214

Drill Water 11,300 bbls Pressure Rating 7,500 psi

Potable Water 1,658 bbls Shale Shakers 5 x Brandt CM-2/ LCM-3D

Liquid Mud 3,300 bbls LIFTING EQUIPMENT


Base Oil 1,124 bbls Deck Crane 3 x LeTourneau PCM120SS

Brine 800 bbls


(120 ft) 83.3 st @ 25 ft & 98.4 st
Barite/Bentonite 6,400 cu ft Main Block Rating @ 22 ft / (100 ft) 98.4 st @ 30 ft
& 14.99 @ 108 ft
Cement 4,800 cu ft

Sack Storage 5,000 Sacks Whip Line Rating 8.98 st @ 128 ft / 14.99 st @ 108 ft

POWER OFFLINE ACTIVITY CAPABILITY


Main Engines 4 x Cat 3516B-HD Nil
Main Generators 4 x Baylor @ 1,500 kW OTHER FEATURES
Total Power 8,600 HP Dual mud system

Emergency Power 1 x Cat 3516B-HD x 2,681 HP

Further information: +47 51 30 90 00 — www.seadrill.com


The above information is intended for general reference only. All equipment and specifications are subject to change at any time.

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