1、STD.API/PETRO RP 5C7-ENGL 199b 0732290 0562075 742Recommended Practice forCoiled Tubing Operations inOil and Gas Well ServicesAPI RECOMMENDED PRACTICE 5C7FIRST EDITION,DECEMBER 1996AmericanPetroleumInstitutee0et9snteneehAnNot for ResaleSTD.API/PETRO RP 5C7-ENGL 1996 0732290 0562077 515SPECIAL NOTESA
2、PI publications necessarily address problems of a general nature.With respect to partic-ular circumstances,local,state,and federal laws and regulations should be reviewed.API is not undertaking to meet the duties of employers,manufacturers,or suppliers towarn and properly train and equip their emplo
3、yees,and others exposed,concerning healthand safety risks and precautions,nor undertaking their obligations under local,state,orfederal laws.Information conceming safety and health risks and proper precautions with respect to par-ticular materials and conditions should be obtained from the employer,
4、the manufacturer orsupplier of that material,or the material safety data sheet.Nothing contained in any API publication is to be construed as granting any right,byimplication or otherwise,for the manufacture,sale,or use of any method,apparatus,or prod-uct covered by letters patent.Neither should any
5、thing contained in the publication be con-strued as insuring anyone against liability for infringement of letters patent.Generally,API standards are reviewed and revised,reaffirmed,or withdrawn at least everyfive years.Sometimes a one-time extension of up to two years will be added to this reviewcyc
6、le.This publication will no longer be in effect five years after its publication date as anoperative API standard or,where an extension has been granted,upon republication.Statusof the publication can be ascertained from the API Authoring Department telephone(202)682-8000.A catalog of API publicatio
7、ns and materials is published annually and updatedquarterly by API,1220L Street,N.W.,Washington,D.C.20005.This document was produced under API standardization procedures that ensure appropri-ate notification and participation in the developmental process and is designated as an APIstandard.Questions
8、 concerning the interpretation of the content of this standard or com-ments and questions concerning the procedures under which this standard was developedshould be directed in writing to the director of the Authoring Department(shown on the titlepage of this document),American Petroleum Institute,1
9、220 L Street,N.W.,Washington,D.C.20005.API standards are published to facilitate the broad availability of proven,sound engineer-ing and operating practices.These standards are not intended to obviate the need for apply-ing sound engineering judgment regarding when and where these standards should b
10、eutilized.The formulation and publication of API standards is not intended in any way toinhibit anyone from using any other practices.Any manufacturer marking equipment or materials in conformance with the markingrequirements of an API standard is solely responsible for complying with all the applic
11、ablerequirements of that standard.API does not represent,warrant,or guarantee that such prod-ucts 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,ortransmitted by any means,electronic,mechanical,photocopying,re
12、cording,or otherwise,without prior written permission from the publisher.Contact the Publisher.API Publishing Services,1220 L Street,N.W.,Washington,D.C.20005.Copyright 1996 American Petroleum InstituteNo reproduction or networking permitted without license from IHSNot for月esaeSTD.API/PETRO RP SC7-E
13、NGL 1996 0732290 0562078 451FOREWORDAPI publications may be used by anyone desiring to do so.Every effort has been made bythe Institute to assure the accuracy and reliability of the data contained in them;however,theInstitute makes no representation,warranty,or guarantee in connection with this publ
14、icationand hereby expressly disclaims any liability or responsibility for loss or damage resultingfrom its use or for the violation of any federal,state,or municipal regulation with which thispublication may conflict.Suggested revisions are invited and should be submitted to the director of the Expl
15、orationand Production Department,American Petroleum Institute,1220 L Street,N.W.,Washing-ton.D.C.20005No reproduction or networking permitted without lcense from IHSNot for ResaleSTD.API/PETR0RP5C7-EN6L199607322900562079398CONTENTSPage0 INTRODUCTION.1 SCOPE。,。,11.1 Material Covered.1.2 Material Not
16、Covered11.3 Applications Covered.I1.4Applications Not Covered.I1.5 Document Organization.I2REFERENCES.I2.1 Standards12.2 Other References.23 COILED TUBING ADVANTAGES AND LIMITATIONS.23.】Advantages.23.2 Limitations.24 AS-MANUFACTURED COILED TUBING.34.I Introduction.34.2 Process of Manufacture.34.3 Co
17、iled Tubing Material.44.4 Mechanical Properties.44.5Mechanical Testing Procedures.44.6Dimensions,Weights,and Tolerances.54.7 Properties of New Coiled Tubing.64.8 Tapered Coiled Tubing Strings.114.9 Nondestructive Inspection(NDI)of Coiled Tubing.114.10 Certification and Documentation.155 COILED TUBIN
18、G STRING DESIGN AND WORKING LIFE.155.1 Introduction.155.2Design Considerations of Coiled Tubing String.155.3 Description of Fatigue.165.4 Fatigue Cracking.175.5Typical Fatigue Derating Methods.175.6 Diameter Changes.195.7Collapse Derating.205.8Corrosion and Environmental Cracking of Coiled Tubing.21
19、5910lds。.。.。,。,。,;4,。,266 GENERAL DESCRIPTION OF COILED TUBING SURFACE EQUIPMENT.276.I Introduction.276.2 Injector.276.3Tubing-Guide Arch.296.4Reel.326.5Power Supply/Prime Mover.346.6Control and Monitoring Equipment.346.7Downhole Coiled Tubing Tool Connections.36No reproduction or networking permitted without license from IHSNot for月esae