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    API SPEC 7-2-2008 Specification for Threading and Gauging of Rotary Shouldered Thread Connections (First Edition Effective December 1 2008)《旋转肩头连接件的螺纹和计量规范.第1版》.pdf

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    API SPEC 7-2-2008 Specification for Threading and Gauging of Rotary Shouldered Thread Connections (First Edition Effective December 1 2008)《旋转肩头连接件的螺纹和计量规范.第1版》.pdf

    1、 Specification for Threading and Gauging of Rotary Shouldered Thread Connections ANSI/API SPECIFICATION 7-2 (FORMERLY IN SPEC 7) FIRST EDITION, JUNE 2008 EFFECTIVE DATE: DECEMBER 1, 2008 CONTAINS API MONOGRAM ANNEX AS PART OF US NATIONAL ADOPTION ISO 10424-2: 2007 (Identical), Petroleum and natural

    2、gas industriesRotary drilling equipmentPart 2: Threading and gauging of rotary shouldered thread connection Special Notes API publications necessarily address problems of a general nature. With respect to particular circumstances, local, state, and federal laws and regulations should be reviewed. Ne

    3、ither API nor any of APIs employees, subcontractors, consultants, committees, or other assignees make any warranty or representation, either express or implied, with respect to the accuracy, completeness, or usefulness of the information contained herein, or assume any liability or responsibility fo

    4、r any use, or the results of such use, of any information or process disclosed in this publication. Neither API nor any of APIs employees, subcontractors, consultants, or other assignees represent that use of this publication would not infringe upon privately owned rights. API publications may be us

    5、ed by anyone desiring to do so. Every effort has been made by the Institute to assure the accuracy and reliability of the data contained in them; however, the Institute makes no representation, warranty, or guarantee in connection with this publication and hereby expressly disclaims any liability or

    6、 responsibility for loss or damage resulting from its use or for the violation of any authorities having jurisdiction with which this publication may conflict. API publications are published to facilitate the broad availability of proven, sound engineering and operating practices. These publications

    7、 are not intended to obviate the need for applying sound engineering judgment regarding when and where these publications should be utilized. The formulation and publication of API publications is not intended in any way to inhibit anyone from using any other practices. Any manufacturer marking equi

    8、pment 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

    9、 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. Contact the Publisher, API Publishing Services, 1220 L Street, N.W., Washi

    10、ngton, D.C. 20005. Copyright 2008 American Petroleum Institute API Foreword 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

    11、 anything contained in the publication be construed as insuring anyone against liability for infringement of letters patent. This document was produced under API standardization procedures that ensure appropriate notification and participation in the developmental process and is designated as an API

    12、 standard. Questions concerning the interpretation of the content of this publication or comments and questions concerning the procedures under which this publication was developed should be directed in writing to the Director of Standards, American Petroleum Institute, 1220 L Street, N.W., Washingt

    13、on, D.C. 20005. Requests for permission to reproduce or translate all or any part of the material published herein should also be addressed to the director. Generally, API standards are reviewed and revised, reaffirmed, or withdrawn at least every five years. A one-time extension of up to two years

    14、may be added to this review cycle. Status of the publication can be ascertained from the API Standards Department, telephone (202) 682-8000. A catalog of API publications and materials is published annually and updated quarterly by API, 1220 L Street, N.W., Washington, D.C. 20005. Suggested revision

    15、s are invited and should be submitted to the Standards and Publications Department, API, 1220 L Street, NW, Washington, DC 20005, standardsapi.org. This standard shall become effective on the date printed on the cover but may be used voluntarily from the date of distribution. Standards referenced he

    16、rein may be replaced by other international or national standards that can be shown to meet or exceed the requirements of the referenced standard. This American National Standard is under the jurisdiction of the API Subcommittee on Drill Stem Elements. This standard is considered identical to the En

    17、glish version of ISO 10424-2:2003. ISO 10424-2 was prepared by Technical Committee ISO/TC 67, SC 4, Drilling and production equipment. This standard adopts ISO 10424-2 and replaces in part API Spec 7, Specification for Rotary Drill Stem Elements, 40thEdition. API Spec 7 Addendum 3 removes Threading

    18、and Gauging of rotary Shouldered Connections now covered by this specification. Tool Joints will remain in API Spec 7 until they are moved into ISO documents in the future. Work is ongoing to cover Tool Joints in ISO 11961/API Spec 5DP. In this American National Standard, editorial corrections have

    19、been noted with an arrow in the margin to point the reader to normative Annex L. These corrections will be forwarded on to ISO/TC 67, SC4, for the creation of a corrigendum to ISO 10424-2. ii Contents Page API Foreword ii Foreword v Introduction vi 1 Scope 1 2 Conformance Units of measurement 1 3 No

    20、rmative references 2 4 Terms, abbreviated terms, definitions and symbols . 2 4.1 Terms and definitions . 2 4.2 Design types and definitions 4 4.3 Abbreviations and symbols 6 5 Information to be supplied by purchaser 8 6 Threading . 8 6.1 Thread profile and dimensions 8 6.2 Bevels for drill collars a

    21、nd tools that mate directly with drill collars 15 6.3 Low-torque feature 16 7 Product optional features . 18 7.1 General . 18 7.2 Stress-relief features . 18 7.3 Benchmarks . 21 7.4 Surface treatment 23 7.5 Cold working 23 7.6 Break-in 23 8 Product gauging 23 8.1 Gauging . . 23 8.2 Stand-off measure

    22、ment 24 8.3 Gauge contact points 24 8.4 Lead measurement 25 8.5 Taper measurement 27 8.6 Thread height measurement and gauges . 27 9 Gauge relationships for rotary shouldered connections 27 9.1 Gauge relationship 27 9.2 Gauge specifications 28 10 Gauge calibration 40 10.1 Calibration system 40 10.2

    23、Acceptance criteria . 40 10.3 Gauge measurement methods . 40 10.4 Gauge certification . . 46 Annex A (informative) Tables in USC units . 47 Annex B (informative) Care and use of regional master gauges 56 Annex C (normative) Shipment of reference master gauges 58 Annex D (normative) Care and use of w

    24、orking gauges . 60 Annex E (informative) API gauge certification requirements 61 Annex F (informative) Other rotary shouldered connections 64 Annex G (informative) USC units conversion table 85 Annex H (informative) Recommended practice for gauging new rotary shouldered connections . 86 Annex I (inf

    25、ormative) Calculations . 92 Annex J (informative) API grand and regional master rotary connection gauges 96 Annex K (informative) API Monogram 100 Annex L (normative) Regional Adoption Editorial Corrections 102 ISO 10424-2:2007(E) ISO 2007 All rights reserved vForeword ISO (the International Organiz

    26、ation for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). 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

    27、 has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. I

    28、nternational Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publ

    29、ication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent

    30、rights. ISO 10424-2 was prepared by Technical Committee ISO/TC 67, Materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries, Subcommittee SC 4, Drilling and production equipment. ISO 10424 consists of the following parts, under the general title Petroleum

    31、and natural gas industries Rotary drilling equipment: Part 1: Rotary drill stem elements Part 2: Threading and gauging of rotary shouldered thread connections vAPI Specification 7-2 / ISO 10424-2ISO 10424-2:2007(E) vi ISO 2007 All rights reservedIntroduction This International Standard is based on A

    32、PI Spec 7, Specification for rotary drill stem elements. Users of this International Standard should be aware that further or differing requirements may be needed for individual applications. This International Standard is not intended to inhibit a vendor from offering, or the purchaser from accepti

    33、ng, alternative equipment or engineering solutions for the individual application. This may be particularly applicable where there is innovative or developing technology. Where an alternative is offered, the vendor should identify any variations from this International Standard and provide details.

    34、API Specification 7-2 / ISO 10424-2vi INTERNATIONAL STANDARD ISO 10424-2:2007(E) ISO 2007 All rights reserved 1Petroleum and natural gas industries Rotary drilling equipment Part 2: Threading and gauging of rotary shouldered thread connections 1 Scope This part of ISO 10424 specifies requirements on

    35、 rotary shouldered connections for use in petroleum and natural gas industries, including dimensional requirements on threads and thread gauges, stipulations on gauging practice, gauge specifications, as well as instruments and methods for inspection of thread connections. These connections are inte

    36、nded primarily for use in drill-string components. Other supplementary specifications can be agreed between interested parties for special tolerance requirements, qualification, testing, inspection and finishing. This part of ISO 10424 is applicable to the following preferred rotary shouldered conne

    37、ction designs: a) number (NC) style; b) regular (REG) style; c) full hole (FH) style. These are traceable to an internationally supported system of gauges and calibration 2 Conformance Units of measurement In this part of ISO 10424, data are expressed in both the International System (SI) of units a

    38、nd the United States Customary (USC) system of units. Separate tables for data expressed in SI units and USC units are given in the body of this part of ISO 10424 and Annex A, respectively. Figures express data in both SI and USC units. For a specific order item, it is intended that only one system

    39、of units be used, without combining data expressed in the other system. Annex G provides the conversion between SI and USC units used in this part of ISO 10424. Products manufactured to specifications expressed in either of these unit systems shall be considered equivalent and totally interchangeabl

    40、e. Consequently, compliance with the requirements of this part of ISO 10424 as expressed in one system provides compliance with requirements expressed in the other system. For data expressed in the SI system, a comma is used as the decimal separator and a space as the thousands separator. For data e

    41、xpressed in the USC system, a dot (on the line) is used as the decimal separator and a space as the thousands separator. In the text, data in SI units are followed by data in USC units in brackets. API Specification 7-2 / ISO 10424-21 ISO 10424-2:2007(E) 2 ISO 2007 All rights reserved3 Normative ref

    42、erences The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 10424-1, Petroleum and natural gas in

    43、dustries Rotary drilling equipment Part 1: Rotary drill stem elements ISO 119611), Petroleum and natural gas industries Steel drill pipe ISO/IEC 17025, General requirements for the competence of testing and calibration laboratories API Spec 7, Specification for Rotary Drill Stem Elements 4 Terms, ab

    44、breviated terms, definitions and symbols 4.1 Terms and definitions For the purposes of this document, the following terms and definitions apply. 4.1.1 bevel diameter outside diameter of the contact face of the rotary shouldered connection 4.1.2 box connection box end threaded connection on oil count

    45、ry tubular goods with internal (female) threads 4.1.3 box thread internal (female) threads of a rotary shouldered connection 4.1.4 break-in procedure applied to newly manufactured threads to assure correct mating 4.1.5 calibration system documented system of gauge calibration and control 4.1.6 cold

    46、working plastic deformation of the surface of the connection at a temperature low enough to induce strain hardening 4.1.7 first perfect thread thread furthest from the sealing face on a pin, or closest to the sealing face on a box, where both the crest and the root are fully formed 4.1.8 full-depth

    47、thread thread in which the thread root lies on the minor cone of an external thread or lies on the major cone of an internal thread 1) To be published. (Revision of ISO 11961:1996) API Specification 7-2 / ISO 10424-22 ISO 10424-2:2007(E) ISO 2007 All rights reserved 34.1.9 gauge point imaginary plan

    48、e, perpendicular to the thread axis of rotary shouldered connections at which the pitch diameter, C, at gauge point is measured NOTE This plane is located 15,875 mm (0.625 0 in) from the make-up shoulder of the pin thread. 4.1.10 interchange stand-off stand-off between each member of a gauge set and a corresponding gauge next higher in the ranking scheme: grand master or regional master, reference master, working gauge 4.1.11 lead distance parallel to the thread axis from a point on a thread turn and the corresponding point on the


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