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    API SPEC 7-2-2017 Threading and Gauging of Rotary Shouldered Connections (SECOND EDITION ERTA 1 August 2017).pdf

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    API SPEC 7-2-2017 Threading and Gauging of Rotary Shouldered Connections (SECOND EDITION ERTA 1 August 2017).pdf

    1、Threading and Gauging of Rotary Shouldered ConnectionsAPI SPECIFICATION 7-2SECOND EDITION, JANUARY 2017API MONOGRAM PROGRAM EFFECTIVE DATE: JUNE 6, 2017Special NotesAPI publications necessarily address problems of a general nature. With respect to particular circumstances, local,state, and federal l

    2、aws and regulations should be reviewed.Neither API nor any of APIs employees, subcontractors, consultants, committees, or other assignees make anywarranty or representation, either express or implied, with respect to the accuracy, completeness, or usefulness of theinformation contained herein, or as

    3、sume any liability or responsibility for any use, or the results of such use, of anyinformation 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 own

    4、ed rights.API publications may be used by anyone desiring to do so. Every effort has been made by the Institute to ensure theaccuracy and reliability of the data contained in them; however, the Institute makes no representation, warranty, orguarantee in connection with this publication and hereby ex

    5、pressly disclaims any liability or responsibility for loss ordamage resulting from its use or for the violation of any authorities having jurisdiction with which this publication mayconflict.API publications are published to facilitate the broad availability of proven, sound engineering and operatin

    6、gpractices. These publications are not intended to obviate the need for applying sound engineering judgmentregarding when and where these publications should be utilized. The formulation and publication of API publicationsis not intended in any way to inhibit anyone from using any other practices.An

    7、y manufacturer marking equipment or materials in conformance with the marking requirements of an API standardis 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

    8、 API standard.Classified areas may vary depending on the location, conditions, equipment, and substances involved in any givensituation. Users of this specification should consult with the appropriate authorities having jurisdiction.Users of this specification should not rely exclusively on the info

    9、rmation contained in this document. Sound business,scientific, engineering, and safety judgment should be used in employing the information contained herein.API is not undertaking to meet the duties of employers, manufacturers, or suppliers to warn and properly train andequip their employees, and ot

    10、hers exposed, concerning health and safety risks and precautions, nor undertaking theirobligations to comply with authorities having jurisdiction.Information concerning safety and health risks and proper precautions with respect to particular materials andconditions should be obtained from the emplo

    11、yer, the manufacturer or supplier of that material, or the material safetydata sheet.All rights reserved. No part of this work may be reproduced, translated, stored in a retrieval system, or transmitted by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior writte

    12、n permission from the publisher. Contact the Publisher, API Publishing Services, 1220 L Street, NW, Washington, DC 20005.Copyright 2017 American Petroleum InstituteForewordNothing contained in any API publication is to be construed as granting any right, by implication or otherwise, for themanufactu

    13、re, sale, or use of any method, apparatus, or product covered by letters patent. Neither should anythingcontained in the publication be construed as insuring anyone against liability for infringement of letters patent.The verbal forms used to express the provisions in this document are as follows.Sh

    14、all: As used in a standard, “shall” denotes a minimum requirement in order to conform to the standard.Should: As used in a standard, “should” denotes a recommendation or that which is advised but not required in orderto conform to the standard.May: As used in a standard, “may” denotes a course of ac

    15、tion permissible within the limits of a standard.Can: As used in a standard, “can” denotes a statement of possibility or capability.This document was produced under API standardization procedures that ensure appropriate notification andparticipation in the developmental process and is designated as

    16、an API standard. Questions concerning theinterpretation of the content of this publication or comments and questions concerning the procedures under whichthis publication was developed should be directed in writing to the Director of Standards, American PetroleumInstitute, 1220 L Street, NW, Washing

    17、ton, DC 20005. Requests for permission to reproduce or translate all or any partof 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-timeextension of up to two years may

    18、be added to this review cycle. Status of the publication can be ascertained from theAPI Standards Department, telephone (202) 682-8000. A catalog of API publications and materials is publishedannually by API, 1220 L Street, NW, Washington, DC 20005.Suggested revisions are invited and should be submi

    19、tted to the Standards Department, API, 1220 L Street, NW,Washington, DC 20005, standardsapi.org.iiiContentsPage1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.1 Coverage . .

    20、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.2 Application of the API Monogram2 Normative References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

    21、. . . . . . . . . . . . . . . . . . . . . . . . . 13 Terms, Definitions, Symbols, and Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23.1 Terms and Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

    22、. . . . . . . . . . . . . . . . . . . . . . . . . . . . 23.2 Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53.3 Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . .

    23、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74.1 General . . . . . . . . . . . . .

    24、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74.2 Purchaser Supplied Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 Thre

    25、ading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85.1 Thread Profile and Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

    26、 . . . . . . . . . . 85.2 Bevels for Drill Collars and Tools that Mate Directly with Drill Collars. . . . . . . . . . . . . . . . . . . . . . . . . . . . 105.3 Low-torque Feature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

    27、. . . . . . . . . 146 Product Optional Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

    28、. . . . . . . . . . . . . . . . . . . . . . . . . 146.2 Stress-relief Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146.3 Optional Profile Features . . . . . . . . . . . . . . . . . . . . . . . . . . .

    29、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176.4 Benchmarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186.5 Surface Treatment . . . . . . . . . . . . . . .

    30、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206.6 Cold Rolling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206.7 Break-in .

    31、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207 Product Gauging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

    32、. . . . . . . . . . 207.1 Gauging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207.2 Standoff Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

    33、 . . . . . . . . . . . . . . . . . . . . . . . . . . 217.3 Gauge Contact Points. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237.4 Lead Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

    34、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237.5 Taper Measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247.6 Thread Height Measurement and Gauges . . . . . . . .

    35、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248 Gauges for Rotary Shouldered Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248.1 Gauge Relationship. . . . . . . . . . . . . . . . . . . . . . . .

    36、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248.2 Gauge Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269 Gauge Calibration . . . . . . . . . . . .

    37、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329.1 Calibration System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329.2 Acceptance

    38、 Criteria. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329.3 Gauge Measurement Methods. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

    39、. 329.4 Gauge Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Annex A (informative) API Monogram Program Use of the API Monogram by Licensees . . . . . . . . . . . . . . . . 38Annex B (informa

    40、tive) Tables in SI Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42Annex C (informative) Tables in USC Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54Annex D

    41、 (informative) USC Units Conversion Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66Annex E (informative) Calculations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67Ann

    42、ex F (informative) Gauging Elements of New Rotary Shouldered Connections . . . . . . . . . . . . . . . . . . . . . 74ContentsPageAnnex G (normative) Care and Use of Working Gauges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78Annex H (informative) Care and

    43、 Use of Master Gauges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79Annex I (informative) Shipment of Reference Master Gauges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80Annex J (informative) Other Rotary Shouldered Conn

    44、ections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82Annex K (informative) Dimensions for Non-preferred Connections in SI Units . . . . . . . . . . . . . . . . . . . . . . . . . 86Annex L (informative) Dimensions for Non-preferred Connections in USC Units . . . . .

    45、 . . . . . . . . . . . . . . . . . 100Bibliography . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114Figures1 Pin Connection (Pin End) . . . . . . . . . . . . . . . . . . . . . . . . . . .

    46、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 Tapered and Cylindrical Pin Bases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 Box Connection (Box End). . . . . . . . . . . . . . . . . . . . . . . . . . . .

    47、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114 Thread Forms V-038R, V-050, V-040 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125 Product Thread Form V-055 (also V-065 and V-076) . . . . . . . . . . . . . . . . . . .

    48、 . . . . . . . . . . . . . . . . . . . . . 136 Low-torque Feature for Certain Connections with Large ODs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157 Box Boreback Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

    49、. . . . . . . . . . 168 Pin Stress-relief Groove . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169 Box Stress-relief Groove . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1710 Unthreaded Area of Box Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1811 Cylinder Benchmark (Box) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


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