ISO INTERNATIONAL STANDARD 11961 Third edition 2018-10 Petroleum and natural gas industries - Steel drill pipe Industries dupetrole etdugaz naturel-Tiges deforageenacier Referencenumber IS011961:2018(E) So IS02018 No reproduction or networking permitted without license from IHS Not for Resale, 10/24/2018 20:35:55 MDT IS011961:2018(E) COPYRIGHTPROTECTEDDOCUMENT IS02018 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may be reproduced or utilized otherwise in anyform or byany means, electronic ormechanical, including photocopying,or posting on the internet or an intranet, without prior written permission. Permission can be requested from either IO at the address beloworIso'smemberbodyinthecountryoftherequester ISO copyright office CP 40i:Ch.de Blandonnet 8 CH-1214 Vernier, Geneva Phone:+41227490111 Fax: +4122 749 09 47 Email: [email protected] Website:www.iso.org Published in Switzerland @IS02018-Allrightsreserved rovided by IHS Markit No reproduction or networking permited without license from IHS Not for Resale,10/24/2018 20:35:55 MDT IS011961:2018(E) Contents Page Foreword ..vii Introduction 1 Scope. 2 Normative references 3 Terms, definitions, symbols and abbreviatedterms. 3.1 Terms and definitions. .2 3.2 Symbols andabbreviated terms 4 Conformance. .9 4.1 Dual citing of normativereferences. 9 4.2 Unitsofmeasurement. 5 Information tobe supplied whenplacing ordersfordrill-pipe .9 5.1 GradesD95andF105 .9 5.2 General information... ..10 5.3 Additional information ..10 6 Requirements for drill-pipe. ..11 6.1 General ..11 6.2 Dimensions, masses and connections ..11 6.2.1 Standard configuration. ..11 6.2.2 Alternative configurations ..12 6.2.3 Drill-pipe weld neck diameters. ..12 6.2.4 Tool-joint inside diameters. ..12 6.2.5 Length. ..12 6.2.6 Length of tool-joint outsidediameter ..12 6.2.7 End-drift ..12 6.2.8 Drill-pipe body and tool-joint alignment ..12 6.2.9 Weld-zone profile. .13 6.3 Material requirements. ..13 6.3.1 General. .13 6.3.2 Weld-zone yield strength ..13 6.3.3 Weld-zone hardness. .13 6.3.4 Weld-zoneCharpyV-notchabsorbed-energyrequirements .14 6.3.5 Weld-zoneCharpyV-notchabsorbed energyAlternativerequirements .14 6.3.6 Weld-zone transverse side bend properties .14 6.3.7 Sulfidestresscrackingtest-GradesDandF .14 6.4 Process ofmanufacture fordrill-pipe ..15 6.4.1 Processes requiringvalidation. ..15 6.4.2 Welding qualification. .15 6.4.3 Welding of tool joints to drill-pipebody and post-weld heat treatment .15 6.4.4 Weld machining .15 6.4.5 Internal coating ..15 6.4.6 External coating. ..15 6.4.7 Thread protection ..16 6.5 Traceability ..16 6.6 Testing— General ..16 6.6.1 Test equipment calibration 6.6.2 Dimensional inspection ..16 6.6.3 Drill-pipe length ..16 6.6.4 Straightness. ..16 6.6.5 End-drifttest .16 6.6.6 Internal profile ..17 6.6.7 Drill-pipe body and tool-joint alignment ..17 6.7 Testing of welds. ..17 Copyrihtintemational oraAlrights reserved ili Providedby IHS Markit under license withANSt Not for Resale, 10/24/2018 20:35:55 MDT