API 6A

A Cameron Introduction to American Petroleum Institute Specifications API 6A (ISO 10423): Specification for Wellhead and Christmas Tree Equipment API Q1: Specification for Quality Programs, the API Monogram Program and ISO-9000 Accreditations. Cameron Locations

POLICY The Cameron Division of Cooper Cameron Corporation supports the development and use of international product standards such as those published by API and ISO. These standards provide a common basis for product characteristics and performance attributes and act to capture the successful industry history associated with these products. Products marketed, designed, manufactured and used in compliance with recognized industry standards add significant value to our industry. Cameron endorses the API monogram program and API Quality Program Specification Q1. API Q1 applies the recognized benefits of the ISO 9001 Quality Program elements tailored specifically to the oil and gas industry. The API monogram program joins the assessment of Quality programs with the demonstrated ability to comply with international product standards such as API Specification 6A (ISO 10423) for Wellhead and Christmas Tree Equipment.

© CAMERON, P.O, Box 1212, Houston TX, 77251-1212, Tel: 713.939.2211 Fax: 713.939.2620, http://www.camerondiv.com

Specification for Wellhead and Christmas Tree Equipment

API SPECIFICATION 6A

API Specification 6A (ISO 10423) is the recognized industry standard for Wellhead and Christmas Tree Equipment which was formulated to provide for the availability of safe, dimensionally and functionally interchangeable Wellhead and Christmas Tree Equipment. This specification includes detailed requirements for the manufacture of tubular suspension equipment, valves and fittings used at the location of oil and gas wells to contain and control pressure and fluid flows. Specification 6A also serves as the reference source for the design of flanged end and outlet connections for use at 2,000 to 20,000 psi maximum rated working pressures and a family of gate valves for use over these same pressure ranges. API Specification 6A is also specified as the base standard for manufacture of subsea equipment in accordance with API Specification 17D. The current edition of API 6A, includes requirements for Surface Safety Valves (SSV) and Underwater Safety Valves (USV).


EQUIPMENT

API Specification 6A (ISO 10423) covers Wellhead and Christmas Tree Equipment as follows: Wellhead Equipment

Connectors and Fittings

Casing & Tubing Hangers

Valves and Chokes

Loose Connectors

Other Equipment

Casing Head Housing

Crossover Connectors

Mandrel Hangers

Single Completion Valves

Weld Neck Connectors

Actuators

Casing Head Spools

Tubing Head Adapters

Slip Hangers

Multiple Completion Valves

Blind Connectors

Ring Gaskets

Tubing Head Spools

Top Connectors

Actuated Valves

Threaded Connectors

Crossover Spools

Tees and Crosses

Valves Prepared for Actuators

Adapter and Spacer Connectors

Multistage Head Housing & Spools

Fluid Sampling Devices

Check Valves

Adapter and Spacer Spools

Chokes

Other End Connectors (Proprietary)

SSV/USV & Actuators for Offshore Services

Bull Plugs Running Tools Valve Removal Plugs Wear Bushings


PRODUCT SPECIFICATION LEVELS (PSL’s)

API Specification 6A (ISO 10423) provides definition of standard service conditions and introduces the concept of product specification levels (PSL’s) which will be referred to throughout the document. The PSL’s define different levels of effort, or levels of technical requirements which may be specified for a product. Generally, these levels represent industry practice for various service conditions. The decision tree shown below is designed to assist the purchaser in selecting the proper specification levels (PSL’s) for primary parts of Wellhead and Christmas Tree Equipment. START HERE

RATED WORKING PRESSURE ≥103.5 MPa (15,000 PSI)

YES

HIGH H2S

YES

PSL-3G

CONCENTRATION ?

NO

NO

YES

PSL-3G

GAS WELL

NO

PSL-3

> 34.5 MPa (5,000 PSI ) YES

YES HIGH H2S CONCENTRATION ?

NACE ?

YES RATED WORKING PRESSURE

GAS WELL

NO NO

NO

≤ 34.5 MPa (5,000 PSI )


GAS WELL

> 34.5 MPa (5,000 PSI)

≤34.5 MPa (5,000 PSI)

NO

RATED WORKING PRESSURE

> 34.5 MPa (5,000 PSI)

≤ 34.5 MPa (5,000 PSI) > 34.5 MPa (5,000 PSI)

PSL-3G PSL-3 PSL-2 PSL-3 PSL-2 PSL-2 PSL-1


GAS WELL

NO

≤ 34.5 MPa (5,000 PSI)

PSL-3 PSL-2 PSL-1


PRESSURE RATINGS

Six pressure ratings from 2,000 to 20,000 psi represent the maximum working pressure of the equipment.

API Pressure Rating in PSI

API Pressure Rating in MPa

2,000

13.8

3,000

20.7

5,000

34.5

10,000

69.0

15,000

103.5

20,000

138.0

TEMPERATURE CLASSES Eight Temperature Classes, each of which represent a range of temperatures from the minimum ambient air temperature to the maximum temperature of the well fluid passing through or contained by the equipment. API TEMP. CLASSIFICATION

OPERATING RANGE (DEG. F) (MIN.) (MAX.)

OPERATING RANGE (DEG. C) (MIN.) (MAX.)

K

-75

TO

180

-60

TO

82

L

-50

TO

180

-46

TO

82

P

-20

TO

180

-29

TO

82

R

ROOM TEMPERATURE

ROOM TEMPERATURE

S

0

TO

150

-18

TO

66

T

0

TO

180

-18

TO

82

U

0

TO

250

-18

TO

121

V

35

TO

250

2

TO

121

Note: These temperature classes can be used in combination with one another to achieve a wider rating. For instance, a common rating for 6A gate valves is P+U (-20 to 250° F).


MATERIAL CLASSES

There are seven Material Classes which specify minimum material requirements for general or sour service shown below. API 6A (ISO 10423) equipment must be designed, tested and marked as satisfactory for one of these Material Classes. Minimum Material Requirements API Material Class

Body, Bonnet, End & Outlet Connections

Pressure Controlling Parts, Stems, & Mandrel Hangers

AA - General Service

Carbon or low alloy steel


BB - General Service


Stainless steel

CC - General Service

Stainless Steel

Stainless Steel

DD - Sour Servicea

Carbon or low alloy steelb


EE - Sour Servicea


Stainless steelb

FF - Sour Servicea

Stainless steelb

Stainless steelb

HH - Sour Servicea

Corrosion Resistant Alloyb

Corrosion Resistant Alloyb

aAs defined by National Association of Corrosion Engineers (NACE) Standard MR0175 bIn compliance with NACE Standard MR0175 Only the most stringent classification is marked.

ANNEX F TESTING Performance verification testing is often performed on prototypes or production models of API Specification 6A (ISO 10423) equipment to ensure that the performance requirements (PR’s) specified for pressure, temperature, load, mechanical cycles, and standard test fluids are met in the design of the product. Performance Verification Testing may include: Pressure/Temperature Cycles Load/Mechanical Cycles Nonmetallic Seal Thermochemical Testing Scalable Performance Verification levels (i.e. PR1, PR2) are applicable to many API 6A products. Although Annex F Testing is not a requirement in API 6A, Cameron is proud to offer a wide variety of products proven to meet, and often exceed the performance verification requirements of API 6A Annex F. © CAMERON, P.O, Box 1212, Houston TX, 77251-1212, Tel: 713.939.2211 Fax: 713.939.2620, http://www.camerondiv.com

WELDING

Quality control requirements for welding generally increase as the PSL level increases from 1 through 3 with each level building on the level below it. No welding is permitted on PSL-4 equipment except for corrosion resistant alloy overlays. The following table applies to pressure containing fabrication and repair weldments for bodies, bonnets, and end and outlet connections:

PSL-1

PSL-2

PSL-3

Same as PSL-1 plus Same as PSL-2 plus Chemical Analysis Base Metal and PWHT Controls Grouping

Weld Procedure Qualification

ASME SECT. IX With Hardness Survey

Welder Performance Qualification

ASME SECT. IX

Same as PSL-1 plus Hole Qualification

Same as PSL-2

Welding Consumables, Instrument Calibration

Documented Controls Required

Same as PSL-1

Same as PSL-1

Visual Exam of Weld

_

Required

Required

Weld Surface NDE: PT/MT

_

Required

Required

Weld Volumetric NDE: UT/RT

_

Weld Hardness Testing

_

Required For All Fabrication Welds and Repair Welds >25% of Wall _

PSL-4 No Welding Allowed Except for Corrosion Resistant Alloy Overlays

Required For All Fabrication Welds and Repair Welds >20% of Wall Required

No Welding Allowed Except for Corrosion Resistant Alloy Overlays


QUALITY CONTROL

Specification 6A (ISO 10423) describes pertinent information on inspections, tests, examinations, and required documentation. Since the selection of Product Specification Level (PSL) is ultimately a purchaser’s decision, quality control information is provided to make it easy for users to select the PSL level consistent with their risk management needs. Quality Control Requirements for Equipment

Requirements

PSL-1

PSL-2

PSL-3

PSL-3G

PSL-4

Drift Test

Yes

Yes

Yes

Yes

Yes

Hydrostatic Test

Yes

Yes

Yes, Extended

Yes, Extended

Yes, Extended

Gas Test

_

_

–

Yes

Yes

Assembly Traceability

_

_

Yes

Yes

Yes

Serialization

_

Yes

Yes

Yes

Yes


QUALITY CONTROL

Quality Control Requirements for Bodies, Bonnets, and End and Outlet Connections

Requirements

PSL-1

PSL-2

PSL-3

PSL-4

Tensile Testing

Yes

Yes

Yes

Yes

Impact Testing

K, L

K, L, P

Yes

Yes

Hardness Testing

Sampling

Single

Multiple

Multiple

Dimensional Verification

Sampling

Sampling

Yes

Yes

Traceability

_

Yes

Yes

Yes

Chemical Analysis

_

Yes

Yes

Yes

Visual Examination

Yes

Yes

_

_

Surface NDE

_

Yes

Yes

Yes

Weld NDE

_

Yes

Yes

Yes

Serialization

_

_

Yes

Yes

Volumetric NDE

_

_

Yes

Yes

Definitions: End and Outlet Connections - Integral threads, male or female; flanges, studded or through-bolted; or any other means used to join together equipment that contains or controls pressure. Body - Any portion of API Spec 6A equipment between end connections, with or without internal parts, which contains well-bore pressure. Bonnet - A pressure-containing closure for a body, other than an API end or outlet connection.


MARKINGS

Section 8 of Specification 6A and the chart below describe marking instructions for equipment. The marking requirements include the following: CC-OKC

API

Manufacturer‘s Mark

13–5/8"

5000 PSI

Nominal Size

Monogram

S

AA

PR2

Product Specification Level

Temperature Class

Rated Working Pressure

1

Material Class

6-01

Date of Final Acceptance

Performance Requirement Level


HOW TO ORDER EXHIBIT A1 – GENERAL WELLHEAD EQUIPMENT DATA SHEET

The following data sheet is included as a worksheet for assembling information needed to place an order: Well name(s) and location(s): __________________________________________________________________ Maximum operating pressure: __________________________________________________________________ Anticipated wellhead shut-in pressure: __________________________________________________________ Temperature ranges anticipated: ________________________________________________________________ Minimum ambient temperature: ________________________________________________________________ Maximum flowing fluid temperature at wellhead: ________________________________________________ Anticipated composition of produced fluids: CO2 __________ ppm ___________ Chlorides ________ppm ______________ Other ______________ ___________________________H2S ______________ppm Anticipated completion or future workover or recovery operations which would affect pressure, temperature, or fluid content __________________________________________________________________ New values: _________________________________________________________________________________ Are there any government regulations that will apply or must be met by this equipment? _______________ If so, which one(s)? __________________________________________________________________________ Water or brine pH: Does NACE MR0175 apply? Will scale, paraffin, corrosion, or other types of inhibitors be used? __________________________________ Inhibitor type: _______________ Inhibitor carrier: _______________ Batch or continuous inhibition? ______ Will acidizing be performed? ________________________________ Type of acid: ______________________ Anticipated production rates: ______________________ M3/D oil/condensate ______________________ M3/D gas ______________________ M3/D S&W Will erosion be concern? ____________________ Cause: __________________________________________ External coating? Yes, Type _________________________ No _________________ Internal coating? Yes, Type__________________________No _________________ Delivery requirements: ________________________________________________________________________ ____________________________________________________________________________________________ Special shipping, packing and storage instructions: ________________________________________________ Casing Program Top Joint String

Conductor Surface Csg. Protective Csg Production Csg. Tubing

Size (OD)

Wt., Kg/m (lb/ft)

Grade

________ ________ ________ ________ ________

________ ________ ________ ________ ________

________ ________ ________ ________ ________

Connection

________ ________ ________ ________ ________

Total String Hanging Wt. in DaN (lbs)

Bit Size in mm (in)

________ ________ ________ ________ ________

________ ________ ________ ________ ________

Type of Completion: single or multiple: ________________ Technical contact in buyer’s organization: ________________________________________________________ Phone: ________________________________________________________

For more information, contact your local Cameron representative. Cameron, P.O. Box 1212 • Houston, TX 77251-1212 • Tel: (713)939-2211 • FAX: (713) 939-2620 http://www.camerondiv.com

API Q1: Specification for Quality Programs, the API Monogram Program and ISO-9000 Accreditations.

SO 9000 Accred tat ons.

API SPECIFICATION Q1

OVERVIEW API Q1 is intended to be used in conjunction with international oil and gas product standards by internationally licensed manufacturers. Used in this manner, API Q1 delivers significant value to the industry by providing a cohesive link between the accreditation of a manufacturer’s quality system with their ability to provide products meeting industry and customer requirements. API Specification Q1 differs from generic quality systems, (e.g., ISO 9000 Series), by its role in the voluntary licensing of manufacturers to provide oil and gas industry products in accordance with API specifications. API licenses are only issued after an on-site survey has confirmed that the licensee adheres to the requirements of both the quality system standard API Q1 and the requirements of an international oil and gas product specification recognized by the oil and gas industry and API. In contrast, generic quality system requirements are normally intended to be applied to any industry or product through contractual agreements with or without industry standards or specifications. Typical Quality Program Elements (API Q1) 1 2 3 4 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8

SCOPE REFERENCES DEFINITIONS QUALITY SYSTEM REQUIREMENTS MANAGEMENT RESPONSIBILITY QUALITY SYSTEM ORDER REVIEW DESIGN CONTROL DOCUMENT AND DATA CONTROL PURCHASING PURCHASER-SUPPLIED PRODUCT MATERIAL/PRODUCT IDENTIFICATION AND TRACEABILITY 4.9 PROCESS CONTROL 4.10 INSPECTION AND TESTING

4.11 INSPECTION, MEASURING, AND TEST EQUIPMENT 4.12 INSPECTION AND TEST STATUS 4.13 CONTROL OF NONCONFORMING PRODUCT 4.14 CORRECTIVE ACTION 4.15 HANDLING, CLEANING, STORAGE, PACKAGING, AND DELIVERY 4.16 QUALITY RECORDS 4.17 INTERNAL QUALITY AUDITS 4.18 TRAINING, INDOCTRINATION, AND QUALIFICATION 4.19 SERVICING 4.20 STATISTICAL TECHNIQUES

Typical Quality Program Elements (ISO 9001 – 2000) 1 2 3 4 5 6 7 8

SCOPE NORMAL REFERENCES TERMS AND DEFINITIONS QUALITY SYSTEM REQUIREMENTS MANAGEMENT RESPONSIBILITY RESOURCE MANAGEMENT PRODUCT REALIZATION MEASUREMENT, ANALYSIS AND IMPROVEMENT


API and ISO ACCREDITATIONS

Cameron is proud to maintain API and ISO accreditations at our manufacturing and repair facilities. In fact, Cameron holds the largest number of API licenses in the industry. These accreditations, however, only make up a part of Cameron’s commitment to quality. We invite you to contact your local Cameron representative and review our commitment to quality in detail.

Plant Locations

Brookshire Edmonton (CC) Edmonton (CCV) Houston–Actuators Houston–Controls Liberty Little Rock Livingston, TX Maracaibo (CC) Oklahoma City (CCV) Oklahoma City (CC) Patterson Sao Paulo Veracruz Ville Platte Zarate Aberdeen Beziers Celle Hoogezand Leeds Livingston, Scotland Longford Randaberg, Norway

API 6A Wellhead & Xmas Trees

API 6D Ball Valves

API 16A Drill Through Equipment

API 16C Drilling Chokes

API 16D Controls

API 16R API 17D Marine Subsea Drilling Riser Equipment Couplings

Western Hemisphere 0126 0086.3

0418.5

ISO

ISO 9001 ISO 9001

0244.5 0506

0014 0012

0418

0042.27 0418.2 0418.13 0418.3

0244 0073 0276

00418.9 00418.19

0001

0086.9 0244.2 0244.10 0244.3

0148.8 0418.7

0086

0022 0015 0028

0086.1

0006.1

0007.1

0121.8 0244.4 0244.7

00244.8

0418.10

0086.5 Eastern Hemisphere 0086.6 0086.8

0006 0006

0086.7

0007.4 0007.6 0007.5

0291 00418.20 0418.22

0007.7

ISO 9001 ISO 9001 ISO 9001 ISO 9001 ISO 9002 ISO 9001 ISO 9001 ISO 9001 ISO 9001 ISO 9001 ISO 9001 ISO 9001 ISO 9001 ISO 9001 ISO 9001 ISO 9002 ISO 9001 ISO 9001 ISO 9001 ISO 9001

Asia Pacific / Middle East Batam 0223 Darul, Malaysia 0418.12 Deer Park, Victoria 0042.18 Australia Oman Singapore

0244.9 0014.9

0000 0007.8

ISO 9002 ISO 9002

0001.6

ISO 9001

0516 0418.6

ISO 9002 0244.6

0086.4

0007.3

ISO 9001


API 6A

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