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
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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
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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 Generally, API standards are reviewed and revised, reaffirmed, or withdrawn at least every five years.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
