Quality and Inspection Requirements for New and Refurbished Drilling and Well Completion Equipment

Once printed this specification becomes an uncontrolled copy of the online version.

05.29.00.1121
NS-1™ Number: NS 05.29.00.1121
Revision Date: June 2007
Equipment Name: LINER HANGER AND ROTATING LINER HANGER ASSEMBLIES
Manufacturer: GENERAL
Model/Type: HYDRAULIC SET
Material Group: LOW ALLOY STEEL
Service: SOUR

Rev Date Description Change Note

01 11/94 REVISIONS: SCOPE PAGE – ADDED ISO 11960 REF.
SUPPLEMENTARY REQ: SECTION 2,
REFORMATTED. SECTION 4, REWRITTEN.
SECTIONS 5.2 & 5.5, TEST PRESSURE FORMULA &
DRIFT SIZES REVISED IN ACC. ISO 11960 & ISO
UNITS
02 06/04 MINOR CHANGES
03 06/07 MINOR HEADER AND FRONT PAGE ADJUSTMENT

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 Quality and Inspection Requirements for New and Refurbished Drilling and Well Completion Equipment

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SCOPE
This GENERAL NS-1™ specifies the minimum quality and inspection requirements to be applied in the manufac-
ture of wrought Low Alloy Steel Liner Hanger and Rotating Liner Hanger Assemblies, hydraulically set types.

It applies to:

• SOUR service conditions, employing low alloy steel (e.g. 41XX).

• All operating temperatures.
• All sizes and rated working pressures.

The applicability of this GENERAL NS-1™ is limited to the model/types tabulated in the "Vendor Information"
section. If the selected model/type is not included in the "Vendor Information" section, an assessment is required
to confirm applicability of this GENERAL NS-1™.

When ordering spare parts or sub-assemblies, the applicable quality requirements shall be those specified for
the components supplemented by the relevant requirements called out for the complete assembly.

The equipment shall be in accordance with the requirements of ISO 11960 (as applicable) and the requirements
of this NS-1™. If in conflict, the requirements of this NS-1™ shall prevail.

Design verification, approval and other design related parameters are specifically excluded from this NS-1™.

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 Quality and Inspection Requirements for New and Refurbished Drilling and Well Completion Equipment

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SUPPLEMENTARY REQUIREMENTS
The following requirements are supplementary to, and shall be applied in conjunction with the Quality Sub speci-
fications called out in the matrix of this NS-1™.

1. WELDING
No fabrication welding shall be performed.

No repair welding shall be performed.

2. MATERIAL TESTING
(Ref. Sub-Spec. 10.1 & Sub-Spec. 10.4)

2.1 Chemical Analysis

Chemical analysis shall be carried out on a heat basis, demonstrating conformance to the
manufacturer’s applicable material specification for all elements contained therein.

2.2 Mechanical Testing

Mechanical testing to ASTM A370 shall, as a minimum, establish yield strength, tensile strength,
elongation and reduction in area on a heat basis, representative of any heat treatment that may have
been applied.

Note: Reduction in area is not required on cast steel materials.

3. HARDNESS TESTING
(Ref. Sub-Spec. 70.1)

3.1 Hardness tests shall be carried out on each finished part, and shall meet the requirements of NACE
MR-01-75.

3.2 Hardness testing of parts may be carried out at an earlier stage of machining in the following cases:

• Where the diameter to wall thickness ratio is such that it can be adversely affect the accuracy
of the hardness measurements.

• Where hardness testing would destroy the finished part.

4. SURFACE HARDENING – SLIPS

4.1 Surface Hardening Procedure Specifications

Surface hardening shall be performed in accordance with the manufacturer’s documented surface
hardening procedure.

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 Quality and Inspection Requirements for New and Refurbished Drilling and Well Completion Equipment

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The manufacturer’s surface hardening procedure specifications shall describe all the essential
variables and controls pertinent to the special process, including as a minimum:

• The material grade, including chemical analysis and mechanical properties of the slip(s). The
material grade, chemical analysis and mechanical properties of the flat test specimen(s), when
utilised, shall be identical to the slip(s).

• The specified dimensions of the slip(s) being qualified. The flat test specimen, when utilised,
shall be representative of the slip(s) dimensions.

• Surface hardening method (i.e. heat treatment process, temperature, time etc.).

• Process verification; Time, temperature, technique for measuring surface hardness, case depth
and core hardness and acceptance criteria.

Upon request, the manufacturer shall demonstrate that the surface hardening procedure meets the
design requirements of the product.

If the manufacturer desires to use a flat test specimen in place of a sacrificial production slip then the
surface hardening procedure shall be qualified per 4.2 to verify that the flat test specimen provides an
accurate representation of the actual slip(s) properties.

4.2 Flat Test Specimen Qualification Tests

For each type and size of slip utilised, a representative (corresponding) flat test specimen shall be
included with the same surface hardened batch.

Each slip and its corresponding flat test specimen shall be cross sectioned (metallographic method)
and micro hardness tested to determine the surface hardness, case depth and core hardness.

The results of both the slip tests and flat specimen tests shall meet the specified surface hardness,
core hardness and case depth, and shall not differ from each other by more than 2 RC points nor
more than 10% depth of hardness.

Procedure qualification test records shall be made available on request.

4.3 Production Slips

Each production batch of slips shall be verified to meet the requirements of the manufacturer’s
specification. When a flat test specimen is used, it shall be processed with the production batch of
slips and verified to meet the acceptance criteria of the manufacturer’s specification.

The minimum surface hardness requirement for either the slip or the flat test specimen shall be 52
RC (77 HRA).

5. ASSEMBLY TESTING
Hydrostatic Testing (Ref. Sub-Spec. 100.2)

Each assembled liner hanger shall be hydrostatically tested to the manufacturer’s procedures and specifications
with the following minimum requirements:

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 Quality and Inspection Requirements for New and Refurbished Drilling and Well Completion Equipment

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5.1 Hydrostatic Body Test

The hydrostatic test shall consist of three steps;

i. an initial pressure holding period of not less than three (3) minutes duration.

ii. reduction of the pressure to zero.

iii. a second pressure holding period of not less than five (5) minutes duration.

To prevent the hanger from setting, the manufacturer shall take adequate steps to isolate the
hydraulic operating system from hydrostatic test pressure.

The timing of the holding periods shall not start until the test pressure has stabilized, the equipment
and the measuring devices have been isolated from the pressure source and the external surfaces of
the equipment thoroughly dried.

There shall be no leakage or reduction in indicated pressure.

5.2 Test Pressures

5.2.1. The hydrostatic test pressure shall be calculated by applying a fibre stress value of at least
80% of the specified minimum yield strength.

5.2.2. Where the test pressure is limited by the threaded end connections, it shall be calculated using
the following formulas:

P = (2 · f · Yp · t) / D

Where:
P = hydrostatic test pressure, in (MPa)
f = a factor of 0,8 of specified minimum yield strength
Yp = specified yield strength for the pipe body (MPa)
t = nominal design wall thickness adjacent to thread connection (mm)
D = nominal outside diameter of the connecting thread (mm).

5.2.3. As a minimum; The hydrostatic test pressure shall not be less than the equipment rated
working pressure.

5.3 Hydraulic Operating System Test

The hydraulic operating system of each assembled liner hanger shall be hydrostatically proof tested.
This test shall verify the pressure integrity of the elastomer seals.

The test procedure shall conform to section 5.1 above, except that, for this test, the hydraulic
operating system shall be open to hydrostatic test pressure.

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 Quality and Inspection Requirements for New and Refurbished Drilling and Well Completion Equipment

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The following test pressures shall be applied:

– 6.9 MPa (1000 psi) minimum for single cone hangers.

– 3.4 MPa (500 psi) minimum for tandem cone hangers.

A suitable hydraulic oil test medium shall be used.

5.4 Functional Testing (Ref. Sub-Spec. 130.1)

Functional testing shall be carried out to the manufacturer’s specification but shall include the
following as a minimum:

The rotational function of rotating liner hanger assemblies shall be verified. The torque required to
initiate rotation of the bearing shall be below the manufacturers specified maximum torque value.

During testing, check for smooth operation and ensure that all parts move freely. Any evidence of
binding shall be cause for rejection.

Following the above tests, the liner hanger(s) shall be visually inspected. The assembly shall be free
from any visible damage.

5.5 Drift Testing

Each liner hanger assembly shall be internally drifted throughout its entire length using a cylindrical
drift mandrel.

The drift mandrel shall conform with the size and tolerances (i.e. length and diameter requirements)
specified in ISO 11960, latest revision, unless otherwise specified in the purchase order.

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 Quality and Inspection Requirements for New and Refurbished Drilling and Well Completion Equipment

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MATRIX
Equipment Name: Liner Hanger and Rotating Liner Hanger Assemblies
Specification: 05.29.00.1121
Manufacturer: General
Model/Type: Various
Material Group: Low Alloy
Service: Sour

Top Sub/Coupling/Upper Bushings (See Note 1)

Class: A, B, D Material: Wrought Low Alloy Steel

Number Title
10.1 Material Certificates – General
10.4 Type B Material Test Certificate
20.2 Traceability – Heat Traceability
20.3 Traceability – Serialization Traceability
40.1 NDE Surface, General
40.4.1.3 Magnetic Particle Examination (MT) of Forgings, Mech. Tubing and Barstock – Technique – MT
Tech. Wet Fluor. Forg.
40.4.2.3 Magnetic Particle Examination (MT) of Forgings, Mech. Tubing and Barstock – Required Extent –
One Hundred Percent
40.4.3.6 Magnetic Particle Examination (MT) of Forgings, Mech. Tubing and Barstock – Acceptance
Standard – Maximum Permitted Relevant Indications
40.6.1.3 Magnetic Particle and Visual Examination (MT + VE) of Threads – Technique – Wet Fluorescent
Method
40.6.2.3 Magnetic Particle and Visual Examination (MT + VE) of Threads – Required Extent – One
Hundred Percent
40.6.3.2 Magnetic Particle and Visual Examination (MT + VE) of Threads – Acceptance Standard –
Relevant Indications
60.1 Disposition of Defects – Surface Dressing
70.1 Hardness Testing – General
90.1 Dimensional Inspection – General
90.2 Dimensional Inspection – Threads
160.1 Non-Conformity Procedure – General

Single Piece Body/Mandrel/Barrel

Class: A, B, D Material: Wrought Low Alloy Steel

Number Title
10.1 Material Certificates – General
10.4 Type B Material Test Certificate
20.2 Traceability – Heat Traceability
20.3 Traceability – Serialization Traceability
40.1 NDE Surface, General
40.4.1.3 Magnetic Particle Examination (MT) of Forgings, Mech. Tubing and Barstock – Technique – MT
Tech. Wet Fluor. Forg.

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 Quality and Inspection Requirements for New and Refurbished Drilling and Well Completion Equipment

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40.4.2.3 Magnetic Particle Examination (MT) of Forgings, Mech. Tubing and Barstock – Required Extent –
One Hundred Percent
40.4.3.6 Magnetic Particle Examination (MT) of Forgings, Mech. Tubing and Barstock – Acceptance
Standard – Maximum Permitted Relevant Indications
40.6.1.3 Magnetic Particle and Visual Examination (MT + VE) of Threads – Technique – Wet Fluorescent
Method
40.6.2.3 Magnetic Particle and Visual Examination (MT + VE) of Threads – Required Extent – One
Hundred Percent
40.6.3.2 Magnetic Particle and Visual Examination (MT + VE) of Threads – Acceptance Standard –
Relevant Indications
60.1 Disposition of Defects – Surface Dressing
70.1 Hardness Testing – General
90.1 Dimensional Inspection – General
90.2 Dimensional Inspection – Threads
160.1 Non-Conformity Procedure – General

Cone Cylinder/Outer Barrel

Class: C, D Material: Wrought Low Alloy Steel
Number Title
10.1 Material Certificates – General
10.2.1 C.O.C. for raw materials & consumables
20.1 Traceability – Limited Traceability
70.1 Hardness Testing – General
90.1 Dimensional Inspection – General
160.1 Non-Conformity Procedure – General

Slip Segments
Class: B, D Material: Wrought Low Alloy Steel
Number Title
10.1 Material Certificates – General
10.2.1 C.O.C. for raw materials & consumables
20.1 Traceability – Limited Traceability
70.1 Hardness Testing – General
90.1 Dimensional Inspection – General
160.1 Non-Conformity Procedure – General

Slip Flat Springs (Upper/Lower)

Class: C, D Material: Wrought Low Alloy Steel
Number Title
10.1 Material Certificates – General
10.2.1 C.O.C. for raw materials & consumables
20.1 Traceability – Limited Traceability
70.1 Hardness Testing – General
90.1 Dimensional Inspection – General
160.1 Non-Conformity Procedure – General

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 Quality and Inspection Requirements for New and Refurbished Drilling and Well Completion Equipment

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Spring Guides/Float Ring

Class: C, D Material: Wrought Low Alloy Steel

Number Title
10.1 Material Certificates – General
10.2.1 C.O.C. for raw materials & consumables
20.1 Traceability – Limited Traceability
70.1 Hardness Testing – General
90.1 Dimensional Inspection – General
160.1 Non-Conformity Procedure – General

Compression Spring (When Applicable)

Class: B, D Material: Wrought Low or Medium Alloy Steel

Number Title
10.1 Material Certificates – General
10.4 Type B Material Test Certificate
20.2 Traceability – Heat Traceability
20.3 Traceability – Serialization Traceability
40.1 NDE Surface, General
40.4.1.3 Magnetic Particle Examination (MT) of Forgings, Mech. Tubing and Barstock – Technique – MT
Tech. Wet Fluor. Forg.
40.4.2.3 Magnetic Particle Examination (MT) of Forgings, Mech. Tubing and Barstock – Required Extent –
One Hundred Percent
40.4.3.6 Magnetic Particle Examination (MT) of Forgings, Mech. Tubing and Barstock – Acceptance
Standard – Maximum Permitted Relevant Indications
60.1 Disposition of Defects – Surface Dressing
70.1 Hardness Testing – General
90.1 Dimensional Inspection – General
160.1 Non-Conformity Procedure – General

Piston/Setting Sleeve

Class: A, D Material: Wrought Low Alloy Steel

Number Title
10.1 Material Certificates – General
10.4 Type B Material Test Certificate
20.2 Traceability – Heat Traceability
20.3 Traceability – Serialization Traceability
40.1 NDE Surface, General
40.4.1.3 Magnetic Particle Examination (MT) of Forgings, Mech. Tubing and Barstock – Technique – MT
Tech. Wet Fluor. Forg.
40.4.2.3 Magnetic Particle Examination (MT) of Forgings, Mech. Tubing and Barstock – Required Extent –
One Hundred Percent

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 Quality and Inspection Requirements for New and Refurbished Drilling and Well Completion Equipment

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40.4.3.6 Magnetic Particle Examination (MT) of Forgings, Mech. Tubing and Barstock – Acceptance
Standard – Maximum Permitted Relevant Indications
40.6.1.3 Magnetic Particle and Visual Examination (MT + VE) of Threads – Technique – Wet Fluorescent
Method
40.6.2.3 Magnetic Particle and Visual Examination (MT + VE) of Threads – Required Extent – One
Hundred Percent
40.6.3.2 Magnetic Particle and Visual Examination (MT + VE) of Threads – Acceptance Standard –
Relevant Indications
60.1 Disposition of Defects – Surface Dressing
70.1 Hardness Testing – General
90.1 Dimensional Inspection – General
90.2 Dimensional Inspection – Threads
160.1 Non-Conformity Procedure – General

Hydraulic Cylinder/Lower Connection

Class: A, D Material: Wrought Low Alloy Steel
Number Title
10.1 Material Certificates – General
10.4 Type B Material Test Certificate
20.2 Traceability – Heat Traceability
20.3 Traceability – Serialization Traceability
40.1 NDE Surface, General
40.4.1.3 Magnetic Particle Examination (MT) of Forgings, Mech. Tubing and Barstock – Technique – MT
Tech. Wet Fluor. Forg.
40.4.2.3 Magnetic Particle Examination (MT) of Forgings, Mech. Tubing and Barstock – Required Extent –
One Hundred Percent
40.4.3.6 Magnetic Particle Examination (MT) of Forgings, Mech. Tubing and Barstock – Acceptance
Standard – Maximum Permitted Relevant Indications
40.6.1.3 Magnetic Particle and Visual Examination (MT + VE) of Threads – Technique – Wet Fluorescent
Method
40.6.2.3 Magnetic Particle and Visual Examination (MT + VE) of Threads – Required Extent – One
Hundred Percent
40.6.3.2 Magnetic Particle and Visual Examination (MT + VE) of Threads – Acceptance Standard –
Relevant Indications
60.1 Disposition of Defects – Surface Dressing
70.1 Hardness Testing – General
90.1 Dimensional Inspection – General
90.2 Dimensional Inspection – Threads
160.1 Non-Conformity Procedure – General

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 Quality and Inspection Requirements for New and Refurbished Drilling and Well Completion Equipment

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Shear Ring
Class: C, D Material: Wrought Low Alloy Steel
Number Title
10.1 Material Certificates – General
10.2.1 C.O.C. for raw materials & consumables
20.1 Traceability – Limited Traceability
70.1 Hardness Testing – General
90.1 Dimensional Inspection – General
90.2 Dimensional Inspection – Threads
160.1 Non-Conformity Procedure – General

Cage Ring/Lock Nut

Class: C, D Material: Wrought Low Alloy Steel
Number Title
10.1 Material Certificates – General
10.2.1 C.O.C. for raw materials & consumables
20.1 Traceability – Limited Traceability
70.1 Hardness Testing – General
90.1 Dimensional Inspection – General
90.2 Dimensional Inspection – Threads
160.1 Non-Conformity Procedure – General

Shear Screws/Pins
Class: B, D Material: Brass, Copper Alloy
Number Title
10.1 Material Certificates – General
10.2.1 C.O.C. for raw materials & consumables
20.1 Traceability – Limited Traceability
90.1 Dimensional Inspection – General
120.1 Load Testing – General
160.1 Non-Conformity Procedure – General

Spiral Pin
Class: D Material: Mild Steel
Number Title
90.1 Dimensional Inspection – General
160.1 Non-Conformity Procedure – General

Snap Rings/C-Springs
Class: C, D Material: Wrought Low Alloy Steel
Number Title
10.1 Material Certificates – General
10.2.1 C.O.C. for raw materials & consumables
20.1 Traceability – Limited Traceability
90.1 Dimensional Inspection – General
160.1 Non-Conformity Procedure – General

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 Quality and Inspection Requirements for New and Refurbished Drilling and Well Completion Equipment

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Cover/Piston Rings
Class: C, D Material: Wrought Low Alloy Steel
Number Title
10.1 Material Certificates – General
10.2.1 C.O.C. for raw materials & consumables
20.1 Traceability – Limited Traceability
70.1 Hardness Testing – General
90.1 Dimensional Inspection – General
160.1 Non-Conformity Procedure – General

Back-up Rings
Class: C, D Material: Wrought Low Alloy Steel
Number Title
10.1 Material Certificates – General
10.2.1 C.O.C. for raw materials & consumables
20.1 Traceability – Limited Traceability
90.1 Dimensional Inspection – General
160.1 Non-Conformity Procedure – General

Back-up Seal Ring

Class: A, D Material: Elastomer
Number Title
10.1 Material Certificates – General
10.6 Certification of Non-Metallic Sealing Materials
20.1 Traceability – Limited Traceability
90.1 Dimensional Inspection – General
160.1 Non-Conformity Procedure – General

O-Ring
Class: A, D Material: Elastomer
Number Title
10.1 Material Certificates – General
10.6 Certification of Non-Metallic Sealing Materials
20.1 Traceability – Limited Traceability
90.1 Dimensional Inspection – General
160.1 Non-Conformity Procedure – General

Screws
Class: D Material: Wrought Steel
Number Title
90.1 Dimensional Inspection – General
160.1 Non-Conformity Procedure – General

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 Quality and Inspection Requirements for New and Refurbished Drilling and Well Completion Equipment

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Bearing (See Note 1)

Class: B, D Material: Wrought Steel
Number Title
10.1 Material Certificates – General
10.2.1 C.O.C. for raw materials & consumables
20.1 Traceability – Limited Traceability
70.1 Hardness Testing – General
160.1 Non-Conformity Procedure – General

Spacer (See Note 1)

Class: B, D Material: Wrought Low Alloy Steel
Number Title
10.1 Material Certificates – General
10.2.1 C.O.C. for raw materials & consumables
20.1 Traceability – Limited Traceability
70.1 Hardness Testing – General
90.1 Dimensional Inspection – General
160.1 Non-Conformity Procedure – General

Keeper Ring (When Applicable)

Class: B, D Material: Wrought Low Alloy Steel
Number Title
10.1 Material Certificates – General
10.2.1 C.O.C. for raw materials & consumables
20.1 Traceability – Limited Traceability
70.1 Hardness Testing – General
90.1 Dimensional Inspection – General
160.1 Non-Conformity Procedure – General

Complete Assembly
Number Title
10.1 Material Certificates – General
10.2.2 Material Certificates – Assembly Certificate
20.3 Traceability – Serialization Traceability
90.1 Dimensional Inspection – General
100.2 Hydrostatic Testing – General
130.1 Functional Testing – General
160.1 Non-Conformity Procedure – General
170.1 Boxing/Packing/Marking – General
180.1.3 Quality Documentation for Non-Welded Products

1. Items 1, 3, 17, 20 are used on ’Rotational Liner Hangers’ only.

2. On certain Liner Hanger types and sizes, some items are not used – Refer to manufacturers specific designs.

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