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.

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

Wellhead Equipment Casing Head Housing Casing Head Spools Tubing Head Spools Crossover Spools Multistage Head Housing & Spools Crossover Connectors Tubing Head Adapters Top Connectors Tees and Crosses Fluid Sampling Devices Adapter and Spacer Spools Other End Connectors (Proprietary) Mandrel Hangers Slip Hangers Single Completion Valves Multiple Completion Valves Actuated Valves Valves Prepared for Actuators Check Valves Chokes SSV/USV & Actuators for Offshore Services Weld Neck Connectors Blind Connectors Threaded Connectors Adapter and Spacer Connectors Actuators Ring Gaskets Bull Plugs Running Tools Valve Removal Plugs

Wear Bushings

Connectors and Fittings

Casing & Tubing Hangers Valves and Chokes Loose Connectors Other Equipment

API Specification 6A (ISO 10423) covers Wellhead and Christmas Tree

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 YES YES YES NO NO NO

YES YES YES

NO NO NO NO YES YES NO

PSL-3G

PSL-3G

PSL-3

PSL-3G

PSL-3

PSL-2

PSL-3

PSL-2

PSL-2

PSL-3

PSL-2

PSL-1

PSL-1

RATED WORKING PRESSURE ≥103.5 MPa (15,000 PSI) HIGH H2S CONCENTRATION ? GAS WELL NACE ? HIGH H2S CONCENTRATION ? RATED WORKING

PRESSURE GAS WELL

RATED WORKING PRESSURE GAS WELL RATED WORKING PRESSURE RATED WORKING PRESSURE GAS WELL > 34.5 MPa (5,000 PSI ) ≤ 34.5 MPa (5,000 PSI ) > 34.5 MPa (5,000 PSI) ≤34.5 MPa (5,000 PSI) > 34.5 MPa (5,000 PSI) ≤ 34.5 MPa (5,000 PSI) ≤ 34.5 MPa (5,000 PSI) > 34.5 MPa (5,000 PSI)

PRESSURE RATINGS

TEMPERATURE CLASSES

Six pressure ratings from 2,000 to 20,000 psi represent the maximum

working pressure of the equipment.

API Pressure Rating in PSI

2,000 13.8 3,000 20.7 5,000 34.5 10,000 69.0 15,000 103.5 20,000 138.0

API Pressure Rating in MPa

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 -50 TO 180 -20 TO 180 ROOM TEMPERATURE 0 TO 150 0 TO 180 0 TO 250 35 TO 250 -60 TO 82 -46 TO 82 -29 TO 82 ROOM TEMPERATURE -18 TO 66 -18 TO 82 -18 TO 121 2 TO 121 L P R S T U V

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).

Corrosion Resistant Alloyb

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 Carbon or low alloy steel

Stainless Steel Carbon or low alloy steelb Carbon or low alloy steelb

Stainless steelb Corrosion Resistant Alloyb

Carbon or low alloy steel Stainless steel Stainless Steel Carbon or low alloy steelb

Stainless steelb Stainless steelb BB - General Service CC - General Service DD - Sour Servicea EE - Sour Servicea FF - Sour Servicea HH - Sour Servicea

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.

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:

Weld Procedure Qualification Welder Performance Qualification Welding Consumables, Instrument Calibration Visual Exam of Weld Weld Surface NDE: PT/MT Weld Volumetric NDE: UT/RT Weld Hardness Testing ASME SECT. IX With Hardness Survey ASME SECT. IX Documented Controls Required _ _ _ _ Same as PSL-1 plus Base Metal Grouping Same as PSL-1 plus Hole Qualification Same as PSL-1 Required Required Required For All Fabrication Welds and Repair Welds >25% of Wall

Required For All Fabrication Welds and Repair Welds >20% of Wall _ Same as PSL-2 plus Chemical Analysis and PWHT Controls Same as PSL-2 Same as PSL-1 Required Required Required No Welding Allowed Except for Corrosion Resistant Alloy Overlays No Welding Allowed Except for Corrosion Resistant Alloy Overlays PSL-1 PSL-2 PSL-3 PSL-4

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

Drift Test Yes Yes Yes Yes

Hydrostatic Test Yes Yes Yes, Extended Yes, Extended

Gas Test _ _ – Yes

Assembly

Traceability _ _ Yes Yes

Serialization _ Yes Yes Yes

PSL-1 PSL-2 PSL-3 PSL-4 Yes Yes, Extended Yes Yes Yes PSL-3G

QUALITY CONTROL

Quality Control Requirements for Bodies, Bonnets, and End and

Outlet Connections

Requirements

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

PSL-1 PSL-2 PSL-3 PSL-4

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.

MARKINGS

Section 8 of Specification 6A and the chart below describe

marking instructions for equipment. The marking requirements

include the following:

CC-OKC API 13–5/8" 5000 PSI S AA 1 PR2 6-01

Manufacturer‘s Mark Monogram Nominal Size Rated Working Pressure Temperature Class Material Class Product Specification Level Performance Requirement Level Date of Final Acceptance

HOW TO ORDER

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

___________________________H2S ______________ppm ______________ Other ______________

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

Size (OD) Wt., Kg/m (lb/ft) Grade Connection Total String Bit Size Hanging Wt. in mm in DaN (lbs) (in) Conductor ________ ________ ________ ________ ________ ________ Surface Csg. ________ ________ ________ ________ ________ ________ Protective Csg ________ ________ ________ ________ ________ ________ Production Csg. ________ ________ ________ ________ ________ ________ Tubing ________ ________ ________ ________ ________ ________

Type of Completion: single or multiple: ________________

Technical contact in buyer’s organization: ________________________________________________________ Phone: ________________________________________________________

API Q1: Specification for Quality Programs, the API

Monogram Program and ISO-9000 Accreditations.

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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

SCOPE

2

REFERENCES

3

DEFINITIONS

4

QUALITY SYSTEM REQUIREMENTS

4.1

MANAGEMENT RESPONSIBILITY

4.2

QUALITY SYSTEM

4.3

ORDER REVIEW

4.4

DESIGN CONTROL

4.5

DOCUMENT AND DATA CONTROL

4.6

PURCHASING

4.7

PURCHASER-SUPPLIED PRODUCT

4.8

MATERIAL/PRODUCT

IDENTIFICATION AND TRACEABILITY

4.9

PROCESS CONTROL

4.10 INSPECTION AND TESTING

Typical Quality Program Elements (ISO 9001 – 2000)

1

SCOPE

2

NORMAL REFERENCES

3

TERMS AND DEFINITIONS

4

QUALITY SYSTEM REQUIREMENTS

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

Cameron is proud to maintain API and ISO accreditations at our

manufac-turing 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.

API and ISO ACCREDITATIONS

API 6A API 6D API 16A API 16C API 16R API 17D

Plant Wellhead & Ball Drill Through Drilling API 16D Marine Subsea ISO

Locations Xmas Trees Valves Equipment Chokes Controls Drilling Riser Equipment Couplings Western Hemisphere Brookshire 0126 ISO 9001 Edmonton (CC) 0418.5 0086.3 ISO 9001 Edmonton (CCV) 0244.5 Houston–Actuators 0506 0014 0022 ISO 9001 Houston–Controls 0012 0015 ISO 9001 Liberty 0418 0244 0086 0001 0028 ISO 9001

Little Rock 0073 ISO 9001

Livingston, TX 0276

Maracaibo (CC) 0042.27 0086.9 ISO 9002

Oklahoma City (CCV) 0418.2 0244.2 ISO 9001

Oklahoma City (CC) 0418.13 0244.10 ISO 9001

Patterson 0418.3 0244.3 0086.1 0006.1 0007.1 ISO 9001

Sao Paulo ISO 9001

Veracruz 0148.8 0121.8 ISO 9001

Ville Platte 0244.4 ISO 9001

Zarate 0418.7 0244.7 0086.5 ISO 9001 Eastern Hemisphere Aberdeen ISO 9001 Beziers 00418.9 00244.8 0086.6 0006 0007.4 ISO 9001 Celle 00418.19 0086.8 0006 0007.6 ISO 9001 Hoogezand ISO 9002 Leeds 0418.10 0086.7 0007.5 ISO 9001

Livingston, Scotland 0291 ISO 9001

Longford 00418.20 0007.7 ISO 9001

Randaberg, Norway 0418.22 ISO 9001

Asia Pacific / Middle East

Batam 0223 0000 ISO 9002

Darul, Malaysia 0418.12 0244.9 0007.8 ISO 9002

Deer Park, Victoria

Australia 0042.18 0014.9 0001.6 ISO 9001

Oman 0516 ISO 9002