_RP_7A1-1992_1999_scan.pdf

Recommended Practice for Testing of Thread Compound for Rotary Shouldered Connections API RECOMMENDED PRACTICE 7A1(RP 7A1)FIRST EDITION,NOVEMBER 1,1992 Reaffirmed 1999 I ei.vs,American National Standards Institute ANSI/API RP 7A1-1992 I American Petroleum Institute Helping You GetlbeJob Done Right Recommended Practice for Testing of Thread Compound for Rotary Shouldered Connections Exploration and Production Department API RECOMMENDED PRACTICE 7 A 1(RP 7 A 1)FIRST EDITION,NOVEMBER 1,1992 ip AmericanPetroleum Institute HelpingYou GetltleJob Done Right.SM 2 American Petroleum Institute TABLE OF CONTENTS Page POLICY.3 FOREWORD.4 SCOPE.5 SECTION 1-GENERAL 1.1 The Purpose.6 1.2 Summary of the Test Procedure.6 1.3 The Reference Compound.6 1.4 The Test Specimen.6 1.5 The Test Apparatus.7 1.6 The Test Conditions.7 SECTION 2-THREAD COMPOUND TEST PROCEDURE 2.1 New Specimen Treatment.11 2.2 Specimen Cleaning.11 2.3 Sample Submission and Storage.11 2.4 Torque Test.11 2.5 Test Specimen Inspection.11 2.6 Data Reduction.11 2.7 The Friction Factor.11 SECTION 3-APPLICATION OF FRICTION FACTOR.12 SECTION 4-CERTIFICATION AND MARKING 4.1 Certification.12 4.2 Marking.12 This is the first edition of RP 7Al.It was approted by letter ballot follo1dng the 1991 Standardization Conference.Thi.subject uas formerly co1ered by Bui 7Al from 1980 until it.uithdrallal in 1985.Requests for permission to reproduce or translate all or part of the material published herein should be addressed to the Director,Production Department,1201 Main Street,Suite 2535,Dallas TX 75202-3904.RP 7 Al:Testing of Thread Compound for Rotary Shouldered Connections 3 POLICY a)API PUBLICATIONS NECESSARILY ADDRESS PROBLEMS OF A GENERAL NATURE.WITH RESPECT TO PARTICULAR CIRCUMSTANCES.LOCAL.STATE AND FEDERAL LAWS AND REG-ULA TIO NS SHOULD BE REVIEWED.b)API IS NOT UNDERTAKING TO MEET DUTIES OF EMPLOYERS.MANUFACTURERS OR SUP-PLIERS TO WARN AND PROPERLY TRAIN AND EQUIP THEIR EMPLOYEES.AND OTHERS EX-POSED.CONCERNING HEALTH AND SAFETY RISKS AND PRECAUTIONS.NOR UNDERTAKING THEIR OBLIGATIONS UNDER LOCAL.STATE.OR FEDERAL LAWS.c)NOTHING CONTAINED IN ANY API PUBLICA-TION 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 ANY-THING CONTAINED IN THE PUBLICATION BE CONSTRUED AS INSURING ANYONE AGAINST LIABILITY FOR INFRINGEMENT OF LETTERS PATENT.d)GENERALLY.API STANDARDS ARE RE-VIEWED 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 PUBLI-CATION DATE AS AN OPERATIVE API ST AND-ARD OR.WHERE AN EXTENSION HAS BEEN GRANTED.UPON REPUBLICATION.STATUS OF THE PUBLICATION CAN BE ASCERTAINED FROM THE API AUTHORING DEPARTMENT(TEL.214-748-3841).A CATALOG OF API PUB-LICATIONS AND MATERIALS IS PUBLISHED ANNUALLY AND UPDATED QUARTERLY BY API.1220 L ST.N.W.WASHINGTON,D.C.20005.American Petroleum Institute FOREWORD a.American Petroleum Institute(API)Recommended Practices are published to facilitate the broad avail-ability of proven.sound engineering and operating prac-tices.These Recommended Practices are not intended to obviate the need for applying sound judgment as to when and where these Recommended Practices should be utilized.b.The formulation and publication of AP!Recom-mended Practices is not intended to.in any way.inhibit anyone from using any other practices.c.Any Recommended Practice may be used by anyone desiring to do so.and a diligent effort has been made by AP!to assure the accuracy and reliability of the data contained herein.However.the Institute makes no representation.warranty.or guarantee in connection with the publication of any Recommended Practice and hereby expressly disclaims any liability or responsibil-ity for loss or damage resulting from their use,for any violation of any federal.state,or municipal regulation with which an AP!recommendation may conflict.or for the infringement of any patent resulting from the use of this publication.d.CAUTION:Some thread compounds contain toxic or hazardous materials.The Material Safety Data Sheets for thread compounds should be read and observed.Store and dispose of containers and unused compound in accordance with federal.state,and local regulations.e.Th i.s.st1111da rd xhall hf!onw effe 0 a:0 I-0.:w:.:(RP 7 Al:Testing of Thread Compound for Rotary Shouldered Connections 7 1.5 The Test Apparatus.The thread compound shall be tested in a machine capable of applying an increas-ing torque at a uniform rate to the specimen while recording the torque and rotation.The torque on the specimen shall be between 200 and 300 ft-lb(270 and 408 N-m)when the friction data is taken.The data acquisition instrumentation may be either analog or digital.Care must be taken to assure that the frequency response of either type system is adequate to acquire representative d