They were placed on your computer when you launched this website. You can change your cookie settings through your browser. Request Free Trial. Language: English. Full Description This document provides requirements for age-hardened nickel-base alloys that are intended to supplement the existing requirements of API 6A. These additional requirements include detailed process control requirements and detailed testing requirements.
The purpose of these additional requirements is to ensure that the age-hardened nickel-base alloys used in the manufacture of API 6A pressure-containing and pressure-controlling components are not embrittled by the presence of an excessive level of deleterious phases and meet the minimum metallurgical quality requirements. This standard is intended to apply to pressure-containing and pressure-controlling components as defined in API 6A.
Requirements of this standard may be applied by voluntary conformance by a manufacturer, normative reference in API 6A or other product specification sor by contractual agreement. This document expands the scope of API 6ACameron Locations. 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.
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, to 20, psi maximum rated working pressures and a family of gate valves for use over these same pressure ranges.
API Specification 6A ISO provides definition of standard service conditions and introduces the concept of product specification levels PSLs which will be referred to throughout the document.
The PSLs 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 PSLs for primary parts of Wellhead and Christmas Tree Equipment. Six pressure ratings from 2, to 20, psi represent the maximum working pressure of the equipment.
F MIN. C MIN. Note: These temperature classes can be used in combination with one another to achieve a wider rating. There are seven Material Classes which specify minimum material requirements for general or sour service shown below. 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:. Specification 6A ISO describes pertinent information on inspections, tests, examinations, and required documentation. Since the selection of Product Specification Level PSL is ultimately a purchasers 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.
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.
Section 8 of Specification 6A and the chart below describe marking instructions for equipment.Log In. Steve Jones Corrosion Management Consultant www. Thank you for helping keep Eng-Tips Forums free from inappropriate posts. The Eng-Tips staff will check this out and take appropriate action. Click Here to join Eng-Tips and talk with other members! Already a Member?
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Can you please tell me what the difference between two editions is? How will it effect on cost? The OEM should be able to provide you with more detail on the differences or you could read the relevant sections of both editions yourself. It could require the supplier to source new material as opposed to material they have in stock which met API 6A 20th Editionwhich could have a significant effect on cost and delivery time.
Ask the supplier if you want a more precise answer. Can you check the dates?? I've heard of forward planning, but this is a bit far fetched. API requires that a product being manufactured, regardless of the order date, be to the current edition at the time of shipping in order to receive a monogram. They should have informed you when you requited a quote. But I can say many companies will have this same issue.
How important is it to have the monogram? Would a 3. Metboss the requirement is that if an API 6A license holder would ship an order after November 1 it must comply to the 21st edition.
There have been various changes to the standard, but with respect to cost impact the two most impactful have been the changes to QTC requirements and bolting requirements.
Previously there was a maximum ER requirement of 5in. So a new QTC now needs to be produced and mechanically tested in order to certify mechanicals to 6A 21st edition. Depending on what stage of production the manufacturer of this wellhead is in, new body material may need to be procured.
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Full Description This specification defines the requirements for performance, design, materials, testing and inspection, welding, marking, handling, storing, and shipping of drill-through equipment used for drilling for oil and gas. Specifically, this document applies to the manufacture and testing of ram blowout preventers; ram blocks, packers, and top seals; annular blowout preventers; annular packing units; and associated connectors.
It also defines service conditions in terms of pressure, temperature, and wellbore fluids for which the equipment is designed. This specification does not apply to field use or field.This banner text can have markup. Search the history of over billion web pages on the Internet.
With respect to particular circumstances, local, state, and federal laws and regulations should be reviewed. API is not undertaking to meet the duties of employers, manufacturers, or suppliers to warn and properly train and equip their employees, and others exposed, concerning health and safety risks and precautions, nor undertaking their obligations under local, state, or federal laws.
Information concerning safety and health risks and proper precautions with respect to particular materials and conditions should be obtained from the employer, the manufacturer or supplier of that material, or the material safety data sheet. Nothing contained in any API publication is to be construed as granting any right, by implication or otherwise, for the manufacture, sale, or use of any method, apparatus, or product covered by letters patent.
Neither should anything contained in the publication be construed as insuring anyone against liability for infringement of letters patent. Generally, API standards are reviewed and revised, reaffirmed, or withdrawn at least every five years.
Sometimes a one-time extension of up to two years will be added to this review cycle. This publication will no longer be in effect five years after its publication date as an operative API standard or, where an extension has been granted, upon republication. Status of the publication can be ascertained from the API Standards department telephone This document was produced under API standardization procedures that ensure appropriate notification and participation in the developmental process and is designated as an API standard.
Questions concerning the interpretation of the content of this standard or comments and questions concerning the procedures under which this standard was developed should be directed in writing to the Director of the Standards department, American Petroleum Institute, L Street, N.
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API standards are published to facilitate the broad availability of proven, sound engineering and operating practices. These standards are not intended to obviate the need for applying sound engineering judgment regarding when and where these standards should be utilized. The formulation and publication of API standards is not intended in any way to inhibit anyone from using any other practices. Any manufacturer marking equipment or materials in conformance with the marking requirements of an API standard is solely responsible for complying with all the applicable requirements of that standard.
API does not represent, warrant, or guarantee that such products do in fact conform to the applicable API standard. All rights reserved. No part of this work may be reproduced, stored in a retrieval system, or transmitted by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission from the publisher.
Standards referenced herein may be replaced by other international or national standards that can be shown to meet or exceed the requirements of the referenced standard. Manufacturers electing to use another standard in lieu of a referenced standard are responsible for documenting equivalency. This standard is a modified adoption of the English version of ISO In this American National Standard certain technical modifications have been made.
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The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee.API Spec 6A has undergone extensive revisions to become a more widely accepted specification worldwide.
API SPEC 6A
API 6A is no longer a dimensional specification. The new API 6A will now make it possible for a user to spec in the cleanliness of the steel and the performance requirements of the seal required to meet the actual intended service conditions which include pressure oil or gasproduced well fluids, actual well temperature and production variables such as inhibitors, acidizers, etc.
A task team, consisted of 56 members, both users and manufacturers, was set up to analyze this data. These team members were mostly technical in background. After two years of technical discussions analyzing data and test programs, the team agreed to the performance testing shown in Appendix F of API 6A. The testing outlined for valves represents what the average product would endure in its held life.
The three pressure temperature cycles outlined for wellhead seals, hangers, etc. Several major worldwide users of 6A equipment had developed internal specifications which outlined requirements for equipment which exceeded PSL4 and PR2 as now defined in Spec 6A.
It become obvious that users wanted lo protect their investment in these products and limit their liability. In summary, the performance testing in API 6A, Appendix F, has improved the reliability of the equipment for the user and has decreased the warranty claims for the manufacturer.
Log in to your subscription Username. Peer reviewed only Published between: Published from year: and Published to year: Advanced search Show search help. Rock Mechanics Symposium and 5th U. Authors A. Dach Jr. Society of Petroleum Engineers Disciplines 1. Other Resources.API 6A oil and gas well wellhead
Download: Api 6a Standard.pdf
Specification for 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, to 20, psi maximum rated working pressures and a family of gate valves for use over these same pressure ranges.
Casing Head. Tubing Head. Head Housing.
Connectors and. Top Connectors. Tees and. Fluid Sampling. Adapter and.
Spacer Spools. Other End. Slip Hangers. Valves and. Actuated Valves. Valves Prepared. Check Valves.
Download: Api 6a 19th Edition Download.pdf
Actuators for. Offshore Services. Weld Neck. Ring Gaskets. Generally, these levels represent industry practice for various service conditions.
Six pressure ratings from 2, to 20, psi represent the maximum working pressure of the equipment. 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. Note: These temperature classes can be used in combination with one another to achieve a wider rating.
There are seven Material Classes which specify minimum material requirements for general or sour service shown below.