Api report 5trsr22 2002 (american petroleum institute)

Technical Report on SR22, Supplementary Requirements for Enhanced Leak Resistance LTC API REPORT 5TRSR22 FIRST EDITION, JUNE 2002 `,,,,`,-`-`,,`,,`,`,,` - American Petroleum Institute Helping You Get The Job Done Right."" Copyright American Petroleum Institute Reproduced by IHS under license with API No reproduction or networking permitted without license from IHS Not for Resale Technical Report on SR22, Supplementary Requirements for Enhanced Leak Resistance LTC Upstream Segment API REPORT 5TRSR22 FIRST EDITION, JUNE 2002 American Petroleum Institute Helping You Get The Job Done Right."" `,,,,`,-`-`,,`,,`,`,,` - Copyright American Petroleum Institute Reproduced by IHS under license with API No reproduction or networking permitted without license from IHS Not for Resale API publications necessarily address problems of a general nature With respect to particular circumstances, local, state, and federal laws and regulations should be reviewed API is not undertaking to meet the duties of employers, manufacturers, or suppliers to warn and properly train and equip their employees, and others exposed, concerning health and safety risks and precautions, nor undertaking their obligations under local, state, or federal laws Information concerning safety and health risks and proper precautions with respect to particular materials and conditions should be obtained from the employer, the manufacturer or supplier of that material, or the material safety data sheet 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 anything contained in the publication be construed as insuring anyone against liability for infringement of letters patent Generally, API standards are reviewed and revised, reaffirmed, or withdrawn at least every five years Sometimes a one-time extension of up to two years will be added to this review cycle This publication will no longer be in effect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 publication date as an operative API standard or, where an extension has been granted, upon republication Status of the publication can be ascertained from the API Upstream Segment [telephone (202) 682-8000] A catalog of API publications and materials is published annually and updated quarterly by API, 1220L Street, N.W., Washington, D.C 20005 This document was produced under API standardizationprocedures that ensure appropriate notifcation and participation in the developmental process and is designated as an API standard Questions concerning the interpretation of the content of this standard or comments and questions concerning the procedures under which this standard was developed should be directed in writing to the standardizationmanager, American Petroleum Institute, 1220 L Street, N.W., Washington, 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 general manager API standards are published to facilitate the broad availability of proven, sound engineering and operating practices These standards are not intended to obviate the need for applying sound engineering judgment regarding when and where these standards should be utilized The formulation and publication of API standards is not intended in any way to inhibit anyone from using any other practices Any manufacturer marking equipment or materials in conformance with the marking requirements of an API standard is solely responsible for complying with all the applicable requirements of that standard API does not represent, warrant, or guarantee that such products in fact conform to the applicable API standard All rights reserved No part of this work may be reproduced, stored in a retrieval system, or transmitted by any means, electronic, mechanical,photocopying, recording, or otherwise, without prior written permission from the publisher: Contact the Publishel; API Publishing Services, 1220 L Street, N IT,Washington,D C 20005 Copyright O 2002 American Petroleum Institute Copyright American Petroleum Institute Reproduced by IHS under license with API No reproduction or networking permitted without license from IHS Not for Resale `,,,,`,-`-`,,`,,`,`,,` - SPECIAL NOTES FOREWORD `,,,,`,-`-`,,`,,`,`,,` - API 5TRSR22 is under the jursidiction of the API Subcommitteeon Tubular Goods API publications may be used by anyone desiring to so Every effort has been made by the Institute to assure the accuracy and reliability of the data contained in them; however, the Institute makes no representation, warranty, or guarantee in connection with this publication and hereby expressly disclaims any liability or responsibility for loss or damage resulting from its use or for the violation of any federal, state, or municipal regulation with which this publication may conflict Suggested revisions are invited and should be submitted to the standardization manager, American Petroleum Institute, 1220L Street, N.W., Washington, D.C 20005 111 Copyright American Petroleum Institute Reproduced by IHS under license with API No reproduction or networking permitted without license from IHS Not for Resale CONTENTS Page SCOPE sR22 ENHANCED LEAK RESISTANCE LTC SR22.2 Marking SR22.3 Optional Tapered Bore along the inside diameter Requirements for Casing with Special Drift Requirements SR22.4 Coupling Makeup 3 SR22 SUPPLEMENTARY REQUIREMENTS (NORMATIVE) 11 ENHANCED LEAK RESISTANCE LTC CONNECTION 11 SR22.2 Threadcontrol 11 SR22.3 Coupling Thread Coatings 11 SECTION 10 10.0 10.1 10.2 10.3 SR-22 PITCH DIAMETER GAUGING METHOD API RP 5B1 17 17 Techniques for SR-22 gage verifcation Method for Determining the Pitch Diameter of a Threaded Member 17 The Internal and External Taper gage setting standard 18 Thread Pitch Diameter gages and their associated setting standards 18 APPENDIX B (RP 5C1-SR22) SUPPLEMENTARYREQUIREMENTFOR ENHANCED LEAK RESISTANCE LTC CONNECTION 21 Scope 21 Preparation and Inspection Before Running (Refer to 4.1) 21 STABBING MAKING UP AND LOWERING (REFER TO 4.3) 21 Field Makeup (Refer to 4.4) 22 Causes of SR22 Casing Troubles (REFER TO 4.8.) 22 SR22.1 SR22.2 SR22.3 SR22.4 SR22.5 Figures SR22-1 SR22-2 El-SR22 E2-SR22 Field End Paint Mark and Triangle Stamp (Stamp on Mill and Field End) Optional Tapered Bore along the Inside Diameter Specifications Basic Dimensions Power Tight Makeup 12 Thread Form 13 Tables SR22-1 6-9 El-SR22 Enhanced Leak Resistance LTC Thread Dimensions 14 E2 Dimensional Tolerances on SR22 Casing 8-Round Thread Dimensions 15 V Copyright American Petroleum Institute Reproduced by IHS under license with API No reproduction or networking permitted without license from IHS Not for Resale `,,,,`,-`-`,,`,,`,`,,` - APPENDIX E 3 `,,,,`,-`-`,,`,,`,`,,` - Technical Report on SR22, Supplementary Requirements for Enhanced Leak Resistance LTC Scope This document covers the supplemental requirements for Enhanced Leak Resistance LTC (SC22) connections and the changes in API Spec 5CT, API Std 5B, API 5B1 and API RP 5C1 needed to produce and inspect these connections By agreement between the purchaser and manufacturer, the supplemental requirements for SR22 shall apply to connections manufacturedin acccordancewith API Spec 5CT and may be marked with the API monogram Copyright American Petroleum Institute Reproduced by IHS under license with API No reproduction or networking permitted without license from IHS Not for Resale Revisions Required in API Spec 5CT to Include the Supplementary Requirements for SR22, Enhanced Leak Resistance LTC Connections SR22.2.c Die stamp marking the coup1ings.M COUplings shall be marked “S22” using methods or of 11.2.1 Add thefollowing as the last line in 5.1.3 Enhanced Leak Resistance LTC connections SR22.2.d Color banding the couplings Couplings shall be painted the colors indicative of the steel grade from which the couplings are manufactured, and shall also be painted with a high visibility green band around the outside surface near one end of the coupling SR22 of Annex A Add thefollowing new line to 8.12.2, end offinish list `,,,,`,-`-`,,`,,`,`,,` - Enhanced Leak Resistance LTC connections Add thefollowing belowfinal line in Table C 67 and Table E 67, Row 1O SR22 S22 P D P SR22.3 OPTIONAL TAPERED BORE ALONG THE INSIDE DIAMETER REQUIREMENTS FOR CASING WITH SPECIAL DRIFT REQUIREMENTS D SR22.3.1 For casing ordered with a larger than standard diameter drift mandrel, see 7.9, the manufacturer may drift or bore along the inside diameter of the ends of the pipe This option requires each end either to be drifted with a special end drift in accordance with SR22.3.l.a, or be finished with an tapered bore along the inside diameter in accordance with SR22.3.1.b prior to coupling makeup Add thefollowing Supplementary Requirement to Annex A By agreement between the purchaser and manufacturer, the supplementalrequirements for Enhanced Leak Resistance LTC in SR22 shall apply It should be noted that the SR22 product is fully interchangeable with standard API 5B LTC connections However, the SR22 design criteria concerning leak resistance shall not apply for such mixed product The application of API connections or pipe in elevated temperature or sour service conditions is beyond the scope of this document SR22.3.1.a If the pipe ends are drifted, a special end drift with a minimum diameter in accordance with “special end drift diameter” column of Option 1in Figure SR22-2 shall be used The drift shall be inserted a distance equal to or greater than b.Pipe ends that are too small to accept the special end drift should be bored along the inside diameter in accordance with SR22.3.1.b CAUTION; Liquid metal embrittlement may result when thread compound containing lead is used with tin plated couplings at elevated temperatures for some material Use of standard API thread compoundin applications involving temperatures in excess of 275°F is cautioned SR22.1 Casing and couplings shall be furnished with Enhanced Leak Resistance LTC connections in accordance with the requirements specified in Std 5B Appendix E SR22 for dimensions, inspection and coupling thread coatings In addition, the casing shall comply with all of the requirements specifiedherein SR22.3.1.b If bored, both ends of the pipe shall be bored along the inside diameter with a taper between 2” to 15”.CIO, the maximum diameter of the machined surface at the end of the pipe, and the angle of the tapered bore shall be in accordance with Option in Figure SR22-2 The tapered bore machined surface need not run continuously around the inside circumference The bore is to run smoothly to the pipe inside diameter If bored, the inside diameter of every pin end shall meet the requirements of Option “Q,‘ SR22.2 MARKING SR22.4 COUPLING MAKEUP SR22.2.a Die stamp marking the end of the pipe A ‘/4-in high equilateral triangle die stamp shall be placed at a distance of from each end of each pipe using methods 3,4, or of 11.2.1 See Figure SR22-1 SR22.4.1 API RP 5A3 thread compound shall be applied in one of the three following methods: 1) to the pin thread only, 2) to the coupling thread only, or 3) to the pin in approximately a one in band at the large end of the thread and to the entire coupling thread (see API RP 5C1, SR22 Figures SR22-1 and SR22-2) In all cases, the full thread form outline shall be clearly discernable after applying thread compound evenly over the surface SR22 Enhanced Leak Resistance LTC SR22.2.b Paint marking the end of the pipe High visibility green paint marks shall be applied on the field end of each pipe See Figure SR22-1 and Std 5B Appendix E Table El Copyright American Petroleum Institute Reproduced by IHS under license with API No reproduction or networking permitted without license from IHS Not for Resale API TECHNICAL REPORT 5TRSR22 l 4.0" MINIMUM 1.5" MINIMUM II L, +o", -1116 NOTES: TRIANGLE STAMP I% PAINT LOCATION INDICATOR THE PAINT MARKS MAY BE PLACED ON THE PIPE BY ANY METHOD, STENCIL, SPRAY, AS LONG AS THE PAINT MARK PRECISION IS MAINTAINED W TRIANGLESTAMP Figure SR22-1-Field End Paint Mark and Triangle Stamp (Stamp on Mill and Field End) Note: It should be recognized by the user that compliance with API Rp 5A3 does not in and of itself ensure adequate thread compound system performance in field service The user has the responsibility of evaluatingthe results obtained from the recommended procedures and test protocols and determining if the thread compound system in question meets the anticipated requirements of that particular field service application SR22.4.2 The SR22 specifcation requires makeup based on power turns and position, not torque Torque is not a basis for acceptance or rejection,but is an indicator of process control Makeup shall be rejected when the coupling does not make the position criteria with minimum power-turns SR22.4.3 Power make-up speed shall not exceed 10 RPM SR22.4.4 Makeup Acceptance Criteria Options are allowed for SR22 connection makeup Makeup shall be rejected when the coupling does not make the position criteria with minimum power-turns Any connecCopyright American Petroleum Institute Reproduced by IHS under license with API No reproduction or networking permitted without license from IHS tion in which the face of the coupling advances beyond the apex of the triangle shall be rejected Control of the coupling makeup shall be by one of the following methods: SR22.4.4.a By Power Turns The number of power turns shall equal or exceed the minimum number of power turns specified in Table SR22-1 Counting power turns should start at a reference start torque specified in Table SR22-1 Ensure proper alignment in makeup equipment and iden@ and minimize abnormal sources of torque oscillation SR22.4.4.b By Position Makeup the face of the coupling within the triangle mark Verify that the number of power turns is equal to or exceeds the number of power turns specified in Table SR22-1during operations SR22.4.5 If a connection is broken-out, subsequent makeup shall be per SR22.4.4.1 Not for Resale `,,,,`,-`-`,,`,,`,`,,` - PAINT MARKS SHALL BE HIGH VISIBILITY GREEN COLOR SUPPLEMENTARY REQUIREMENTS FOR ENHANCED LEAKRESISTANCE LTC OPTION d OPTION S P E C I ~ LEND DRIFT DCA SPECIAL INSIDE CHAMFER CHAMFER CHAMFER `,,,,`,-`-`,,`,,`,`,,` - 7" - 23.00 6.326 6.366 7" - 32.00 6.070 6.094 7.951 7.921 8-5/8" - 40.00 7.701 7.725 9-5/8" - 40.00 8.826 8.835 9-5/8" - 47.00 8.701 8.681 9-5/8" - 53.00 8.576 8.535 8-5/$ - 32.00 7"-23.00 DCA 6.250 6.366 4.000 6.400 2-15" 7"-32.00 6.000 6.094 4.000 6.200 2-15" 3-5/8" - 32.00 7.875 7.921 4.500 8.050 2-15" 3-5/8" -40.00 I 7.625 I 3-5/8"-40.00 I 7.725 I I 4.500 I I 7.800 I 2-15" I 8.750 8.835 4.750 8.95 2-15" 3-5/8" - 47.00 8.625 8.681 4.750 8.800 2-15" I Figure SR22-2: Optional Tapered Bore along the Inside Diameter Specifications Copyright American Petroleum Institute Reproduced by IHS under license with API No reproduction or networking permitted without license from IHS I I Not for Resale I I `,,,,`,-`-`,,`,,`,`,,` - API TECHNICAL REPORT5TRSR22 Table SR22-1 Grade Outside Diameter D In Drift In Coupling Minimum Out Dia Power Regular Turns W (in.) N Length; end of pipe to Apex of Traingle L9 (in.) Approx Start Torque Tin Torque ft-lbs Phosphate Torque ft-lbs 1/2- 11.60 J/K55 4.500 3.875 5.000 130 217 1/2-11.60 L/N80 4.500 3.875 5.000 124 206 1/2 - 13.50 L/N 80 4.500 3.795 5.000 136 227 1/2 - 11.60 C90 4.500 3.875 5.000 1/2 - 13.50 C90 4.500 3.795 5.000 1/2- 11.60 Cm95 4.500 3.875 5.000 130 1/2 - 13.50 C/T 95 4.500 3.795 5.000 146 1/2- 11.60 PI10 4.500 3.875 5.000 130 1/2 - 13.50 PI10 4.500 3.795 5.000 3.250 (all 4.5 label) 127 Recommended Weight of API BUL 5A3 ref Zompound (5A2) Weight Approx 15 gms (all 4.5 label) 143 148 A \\\\\\\\\\\\W \\ - 13.00 J/K 55 5.000 4.369 5.563 116 193 - 15.00 J/K 55 5.000 4.283 5.563 125 208 - 15.00 L/N 80 5.000 4.283 5.563 3.5 164 237 - 18.00 L/N 80 5.000 4.151 5.563 3.5 220 367 - 15.00 c 90 c 90 5.000 4.283 5.563 5.000 4.151 5.563 5.000 4.283 5.563 3.5 202 - 18.00 crr 95 crr 95 5.000 4.151 5.563 3.5 243 - 15.00 PI10 5.000 4.283 5.563 3.5 208 - 18.00 PI10 5.000 4.151 5.563 3.5 248 - 18.00 - 15.00 3.625 (all label) 198 238 20 gms (all label) Note: API 5A3 reference thread compound (formerly MI 5A2) contains metals including lead, and has a specific gravity near API 5A3 non-leadthread compounds generdy have reduced density and will require less weight to achieve equivalentvolume of thread compound Copyright American Petroleum Institute Reproduced by IHS under license with API No reproduction or networking permitted without license from IHS Not for Resale SUPPLEMENTARY REQUIREMENTS FOR ENHANCED LEAKRESISTANCE LTC Table SR22-1 (continued) Designation Size-Weight Grade Outside Diameter D In Drift In Coupling Out Dia Regular W (in.) Minimum Length; end o1 Power pipe to Apex o Turns Train gle N L9 (in.) Approx Start Torque Torque Torque ft-lbs ft-lbs `,,,,`,-`-`,,`,,`,`,,` - 8 - 32.00 J/K 55 8.625 7.796 9.625 3.5 306 51O 8 - 36.00 J/K 55 8.625 7.700 9.625 3.5 356 593 8 - 36.00 L/N 80 8.625 7.700 9.625 5.5 614 1024 8 - 40.00 L/N 80 8.625 7.600 9.625 5.5 657 1095 8 - 44.00 L/N 80 8.625 7.500 9.625 5.5 737 1229 8 - 49.00 L/N 80 8.625 7.386 9.625 5.5 796 1326 8 - 36.00 c 90 c 90 c 90 c 90 8.625 7.700 9.625 8.625 7.600 9.625 4.5 4.5 8.625 7.500 9.625 4.5 789 8.625 7.386 9.625 4.5 857 8.625 7.700 9.625 690 8.625 7.600 9.625 772 8.625 7.500 9.625 843 8-5/8 - 49.00 c/-r95 c/-r95 c/-r95 c/-r95 8.625 7.386 9.625 914 8-5/8 - 40.00 P 110 8.625 7.600 9.625 5.5 799 8-5/8 - 44.00 P 110 8.625 7.500 9.625 5.5 90 8-5/8 - 49.00 P 110 8.625 7.386 9.625 5.5 8 - 40.00 8 - 44.00 8-5/8 - 49.00 8-5/8 - 36.00 8-5/8 - 40.00 8-5/8 - 44.00 4.750 (all 8.625 label) 650 50 gms (all 8.625 level) 723 975 9-5/8 - 36.00 J/K 55 9.625 8.765 10.625 3.5 393 507 9-5/8 - 40.00 J/K 55 9.625 8.769 10.625 3.5 439 572 9-5/8 - 40.00 L/N 80 9.625 8.679 10.625 5.5 673 1121 9-5/8 - 43.50 L/N 80 9.625 8.599 10.625 5.5 767 1278 9-5/8 - 47.00 L/N 80 9.625 8.525 10.625 5.5 823 1371 9-5/8 - 53.50 L/N 80 9.625 8.500 10.625 5.5 923 1539 9-5/8 - 40.00 c 90 c 90 c 90 c 90 9.625 8.679 10.625 9.625 8.599 10.625 9.625 8.525 10.625 790 9.625 8.500 10.625 988 9.625 8.679 10.625 5.5 762 9.625 8.599 10.625 5.5 833 9.625 8.525 10.625 5.5 893 9-5/8 - 53.50 c/-r95 c/-r95 c/-r95 c/-r95 9.625 8.500 10.625 5.5 972 9-5/8 - 43.50 P 110 9.625 8.599 10.625 914 9-5/8 - 47.00 P 110 9.625 8.525 10.625 978 9-5/8 - 53.50 P 110 9.625 8.500 10.625 1092 9-5/8 - 43.50 9-5/8 - 47.00 9-5/8 - 53.50 9-5/8 - 40.00 9-5/8 - 43.50 9-5/8 - 47.00 Copyright American Petroleum Institute Reproduced by IHS under license with API No reproduction or networking permitted without license from IHS 5.000 (all 9.625 label) Not for Resale 675 737 Recommended Neight of API BUL 5A3 ref Compound (5A2) Weight Approx 55 gms (all 9.625 label) Revisions Required in API Std 5B to Include the Supplementary Requirements for SR22, Enhanced Leak Resistance LTC Connections SR22.2 THREAD CONTROL Add the following as a second paragraph to 1.1 in the scope of API Std 5B SR22.2.1 Thread elements including lead, taper, thread height, included flank angle, total thread length, chamfer, pitch diameter and ovdity shall comply with the requirements specified in Tables El and E2 By agreement between the purchaser and manufacturer, the supplementalrequirements for Enhanced Leak Resistance LTC in SR22 shall apply Add thefollowing Appendix E to API Std 5B SR22.2.2 Thread form shall comply with the requirements of Figure E2 APPENDIX E C UPPLEMENTARY REQUIREMENTS (NORMATIVE) SR 22.2.3 The thread diameter of Enhanced Leak Resistance LTC Connection shall be controlledby measurement of the pitch diameter The method used to determine the pitch diameter of pipe and coupling threads shall be in accordance with ANSUASME B1.3M-1992: Screw Thread Gaging Systems for Dimensional Acceptability-Inch and Metric Screw Threads Acceptability shall be determined based on System 23, ASME B1.3 An example of a method to measure the pitch diameter is given in SR22 of API RP 5B1 Ring and plug gages shall not be the basis for acceptance or rejection By agreement between the purchaser and the manufacturer and when specified on the purchase order, the following supplementary requirements shall apply SR22 Enhanced Leak Resistance LTC Connection SR22.1 Casing and couplings shall be furnished in accordance with the requirements for dimensions, inspection, and coupling thread coatings specified herein The threads shall comply with all of the applicable requirements specified in Sections through unless otherwise specified in SR22 Basic thread dimensions are shown in Figure El SR22.3 COUPLING THREAD COATINGS The threads in Grade J55, K55,L80 and N80 couplings shall be phosphated to a minimum coating weight of 1000 mg/ft2 or tin electroplated at the manufacturers option The threads in Grade C90, C95, T95 and P110 couplings shall be tin electroplated The tin electroplate shall be 0.0025 to 0.0045 in thick `,,,,`,-`-`,,`,,`,`,,` - 11 Copyright American Petroleum Institute Reproduced by IHS under license with API No reproduction or networking permitted without license from IHS Not for Resale API TECHNICAL REPORT 5TRSR22 12 - I- PLANE OF EFFECTIVE THREADLENGTH PLANE OF CENTER OF COUPLING r- l PLANE OF VANISH POINT -114 I INCH TRIANGLE STAMP I -L8-l PIPE OUTSIDE DIAM ETER D E8C BREAK CORNER Figure El-SR22-Basic Dimensions Power Tight Makeup Note: The standard LTC length M (length: face of coupling to hand tight plane) may be different for SR22 Copyright American Petroleum Institute Reproduced by IHS under license with API No reproduction or networking permitted without license from IHS Not for Resale `,,,,`,-`-`,,`,,`,`,,` - E8 SUPPLEMENTARY REQUIREMENTS FOR ENHANCED LEAKRESISTANCE LTC C' `,,,,`,-`-`,,`,,`,`,,` - Copyright American Petroleum Institute Reproduced by IHS under license with API No reproduction or networking permitted without license from IHS Not for Resale 13 Table El-SR22-EnhancedLeak Resistance LTC Thread Dimensions All Dimensions in inches, except as indicated See Figures El-SR22 I Desimaiion Site Grade J K 55 L/N 80,C 90 4.465 4.465 I I 4.750 4.750 I I 3.625 I 1.7090 3.625 I 1.7130 Included taper on diameter, all sizes O625per in 2.6040 2.5370 I I 9.4617 9.4575 I I I I Note: Hand-tight Standoff “A” is the basic allowance for basic power makeup of the joint shown in Figure El *LC=Lq-1.125in.fors-RoundThreadRoundThreadCasing `,,,,`,-`-`,,`,,`,`,,` - Copyright American Petroleum Institute Reproduced by IHS under license with API No reproduction or networking permitted without license from IHS Not for Resale 9.4484 9.4472 I I 925132 925132 I I 0.433 0.433 I I 5.000 5.000 I I 112 SUPPLEMENTARY REQUIREMENTS FOR ENHANCED LEAKRESISTANCE LTC 15 E2-Dimensional Tolerances on SR22 Casing 8-Round Thread Diimensions Tolerances Grades J55,K55, N80, and L80 Element Taper, Externd Thread per ft on Diameter (0.750 f 0.042 in - 0.0312 in per in on Diameter (0.0625 + 0.0035 in -0.0025 in Taper, Internd Thread: per ft on Diameter (0.750 per in on Diameter (0.0625 Lead: per in cumulative + 0.030 in Tolerances Grades C90, C95, T95, P110 + 0.018 in - 0.0312 in + 0.0015 in -0.0025 in - 0.018 in + 0.006 in + 0.042 in - 0.0015 in N.0005 in N.0035 in - 0.002 in - 0.003 in - 0.0015 in - 0.002 in + 0.0025 in Thread Height: h, and h, - 0.0015 in Thread Addendum: Pitch Line to Crest f 0.0015 in f 0.0015 in Included Flank Angle f 1" f 1" Length L4 (Externd Thread) + 0.125 in., - 0.0 + 0.125 in., - 0.0 Chamfer + 5, -0" + 5, -0" - 0.0015 in Average Thread Pitch Diameter (Externd Thread) +0.008 in - 0.003 in + 0.007 in Average Thread Pitch Diameter (Internd Thread) f 0.004 in f 0.002 in - 0.006 in Ovality, Thread Pitch Diameter (Internd Thread) 0.003D 0.003D Ovality, Thread Pitch Diameter, Dlt e 20 (Externd Thread) 0.003D 0.003D Ovality, Thread Pitch Diameter, Dlt 20 (Externd Thread) 0.004D 0.004D Minimum Tin Plating Thickness (Internd Thread) Maximum Tin Plating Thickness (Internd Thread) (See SR22.3) (See SR22.3) Casing Coupling dia Q, and depth q + 0.031 in., -0.0 - 0.003 in 0.0025 in 0.0045 in + 0.031 in., -0.0 The above tolerances s h d be verified and documentedon first article For pipe (external threads) the lead tolerance per inch is the maximum dowable error in any inch within the length L4-g See Section for g dimensions The cumulative lead tolerance is the maximum dowable error over the entire length L4-g For internd threads,lead measurements s h d be made within the length from the recess to a plane located at a distance five (5)thread turns from the center of the coupling L4 is acceptable: a, if the distancefrom the end of the pipe to the vanish plane (at the point where the outside diameter of the pipe is a maximum) is within the above minus tolerance; or b, if the distance from the end of the pipe to the vanish plane (where the outside diameter of the pipe is a minimum) is within the above plus tolerance Tolerances apply to both external and internd threads except where otherwise indicated `,,,,`,-`-`,,`,,`,`,,` - Copyright American Petroleum Institute Reproduced by IHS under license with API No reproduction or networking permitted without license from IHS Not for Resale Revisions Required in API Spec 5B1 to Include the Supplementary Requirements for SR22, Enhanced Leak Resistance LTC Connections Add thefollowing Section 1O to API RPSBl 10.1.1.3 Location for the fixed tip of the external taper gage SECTION C R - 2 PITCH DIAMETER GAUGING METHOD API RP 5B1 To find the thread root in which to place the fixed contact tip of the external taper gage place the pointer on the pipe end and move the pointer circumferentially around the thread until the pointer firmly locks on the nose of the pin Mark the thread root that the ?V? shaped portion of the pointer is in with a marking pen 10.0 TECHNIQUES FOR SR22 GAGE VERIFICATION The basis for pitch diameter measurement acceptance and rejection for the SR22 product is discussed herein All pitch diameter measuring gauges must be capable of replicating the pitch diameter values in Table El to within f 0.0003? when applied to a setting standard Correlation of different gaging methods is acceptable when the pitch diameter measurements of a threaded member are within 0.002? The measurement shall be taken at the same plane 10.1.1.4 Location for the indicator tip of the external taper gage To find the movable indicatortip location of the taper gage place the marking pen at the location for the fixed tip, found above, and trace the thread root 180 degrees counter-clockwise (when facing the end of pin) 10.1.1.5 Measuring the pitch diameter with the external taper gage Note: Ring and plug gages shall not be used as the basis for SR22 acceptance or rejection Place the tips of the taper gage in the two positions found above The tips of the taper gage shall engage the thread grooves of the pin in the same orientation that the ?V? notches of the taper gage setting standard were engaged when zeroing the gage in step 10.1.1.2 above Hold the fixed tip steady and sweep the indicator tip to find the maximum indicator reading This indicator reading reflects the variation between the taper gage setting standard and the pitch diameter of the pin correlation standard 10.1 METHOD FOR DETERMINING THE PITCH DIAMETER OF ATHREADED MEMBER This section describes one method to measure the pitch diameter of a pipe thread or coupling thread by a transfer method The necessary equipment includes external andor internal taper gage setting standards, internal andor external thread taper gages with 0.072 diameter ball tips and thread location pointers described in section 1.1.1 and 1.1.2 Note: During the correlation process, all gages shall be applied to the same single clock position on the threaded member 10.1.2 Internal Coupling Threads 10.1.1 External PipeThreads A threaded coupling can be measured utilizing an internal taper gage setting standard, an internal taper gage and a thread groove location device A threaded external pipe thread can be measured utilizing an external taper gage setting standard, an external taper gage and a thread groove location device (see Figures 63,64,65, and 66) 10.1.2.1 Selection of coupling thread to gage 10.1.1.1 Selection of pipe thread to gage Select the pipe end to be measured The threads should be clean and free of burrs, tears, and other defects which may affect the gage reading 10.1.2.2 Setting the Internal Taper Gage 10.1 I Setting the External Taper Gage Using the internal taper gage setting standard with internal notches, set an internal taper gage equipped with 0.072 in diameter ball tips to read zero The tips of the taper gage must engage the ?V? notches of the taper gage setting standard in the same orientation that they will engage the thread flanks of the coupling Using the external taper gage setting standard, set an external taper gage equipped with 0.072 in diameter ball tips to read zero The tips of the taper gage must engage the ?V? notches of the taper gage setting standard in the same orientation that they will engage the thread flanks of the pin 17 Copyright American Petroleum Institute Reproduced by IHS under license with API No reproduction or networking permitted without license from IHS Not for Resale `,,,,`,-`-`,,`,,`,`,,` - Select a coupling to be measured The threads should be clean and free of burrs, tears, and other defects which may affect the gage reading Tin plated couplings will not correlate to 5B dimensions Internally threaded members must be gaged before plating 18 API TECHNICAL REPORT 5TRSR22 10.1.2.3 Location for the fixed tip of the internal taper gage To find the location in which to place the fixed contact tip of the internal taper gage, place the pointer on the coupling face and move the pointer circumferentially around the thread until the pointer firmly locks on the face of the coupling Mark the thread groove that the “V” shaped portion of the pointer is in with a marking pen 10.1.2.4 Location of the indicator tip of the internal taper gage To find the location to place the movable indicator tip of the taper gage, place the marking pen at the location for the fixed tip, found above, and trace the thread root 180 degrees clockwise 10.1.2.5 Measuring the pitch diameter with the internal taper gage Place the tips of the taper gage in the two positions found above The tips of the taper gage shall engage the thread grooves of the coupling in the same orientation that the “V” notches of the taper gage setting standard were engaged when zeroing the gage in step 10.1.2.2 above Hold the fixed tip steady and sweep the indicator tip to find the maximum indicator reading This indicator reading reflects the variation between the taper gage setting standard and the coupling correlation standard 10.2 THE INTERNAL AND EXTERNALTAPER GAGE SETTING STANDARD The internal and external taper gage setting standard shall have profiles similar to the 8-round thread groove The distance between the pitch lines of the grooves should be per Table El in API Std 5B Appendix E The distance between the pitch lines of the grooves should be certified to within a total of 0.0005 in An internal or external taper gage setting standard may be a piece of flat stock with as few as two appropriately shaped notches, a threaded pin or coupling of known size, hardened and ground gages or other equivalent objects meeting the requirements described above 10.2.1 Techniques for establishing the distance between the pitch lines of two notches of taper gage setting standards 10.2.1 I Distance between external notches The distance between the pitch lines of two external notches may be measured by standard metrology tech- niques Examples of some of these techniques are shown in Appendix B of ASME/ANSI B1.20.5-1991, “Gauging for Dry Seal Pipe Threads” Other methods meeting the accuracy requirements of Section 2.0 are acceptable 10.2.1.2 Distance between internal notches The distance between the pitch lines of two internal notches may be measured by a combination of micrometer over wires or balls and micrometer readings Other methods meeting the accuracy requirements of Section 2.0 are acceptable 10.3 THREAD PITCH DIAMETER GAGES AND THEIR ASSOCIATED SETTING STANDARDS Manufacturers and inspection companies are free to develop gauging methodologies for evaluation of this product All Pitch Diameter measuring devices must be set to standards capable of replicating the Pitch Diameter values in Table El to within a tolerance of f 0.0003 in.in It is the responsibility of the manufacturer or the inspection company to demonstrate the capability and traceability of the Pitch Diameter gauging methodology If two different Pitch Diameter gauging methodologiesutilizing the settings standards above are compared the results will be considered acceptable if the measurements are within 002” on diameter ASME B1.3M Section GAUGING REQUIREMENTS permits “The use of any gage or measuring device is not precluded if the results given by such a gage or measuring device correlate with a gage or measuring device listed in this Standard” Acceptability of SR22 connections is consistent with System 23, ASME B1.3M In addition to maximum and minimum material size the magnitude of other thread characteristicsof lead, taper, and thread form are further controlled Consequently, thread groove or pitch diameter may be measured and combined with thread form evaluation for verification of maximum and minimum material condition Pitch diameter measurement methods shall be per the procedures outlined herein or per ANSIJASME B1.20.5: Gauging Systems for D v Seal Pipe Threads or ANSIJASME B1.3M-1992: Screw Thread Gauging Systems for Dimensional Acceptability-Inch and Metric Screw fireads, or equivalent All measurement and procedures shall be documented, and setting standards dimensions traceable to national standards It is incumbent on the gage manufacturer, supplier or user to demonstrate gage capability Ovdity must be considered in average pitch diameter measurement Ring and plug gages are not a basis for SR22 acceptance or rejection `,,,,`,-`-`,,`,,`,`,,` - Copyright American Petroleum Institute Reproduced by IHS under license with API No reproduction or networking permitted without license from IHS Not for Resale REQUIREMENTS FOR ENHANCED LEAKRESISTANCE LTC Figure 63-Coupling Thread Internal Vee Notch Standard Figure Figure 64-Pipe Thread External Vee Notch Setting Standard Figure Figure 65-Coupling Adjustable Internal Thread Vee Notch Setting Figure 66-Coupling Internal Thread P.D Measurement Location Copyright American Petroleum Institute Reproduced by IHS under license with API No reproduction or networking permitted without license from IHS Not for Resale 19 `,,,,`,-`-`,,`,,`,`,,` - SUPPLEMENTARY Revisions Required in API Spec 5C1 to Include the Supplementary Requirements for SR22, Enhanced Leak Resistance LTC Connections Makeup markings and dimensional requirements ensure that the proper makeup requirements can be achieved by tracking turns past 5% to 10% target torque, makeup to position, or the use of torque-turn equipment To obtain the reliability and performance required for casing design, the user should be aware that modifications to API RP 5C1 were found to be necessary in light of recent findings on leak resistance These revisions cite the appropriate section in RP 5C1 Add thefollowing 1.4 1.4 By agreement between purchaser and manufacturer,the supplementary requirements for Enhanced Leak Resistance LTC connection shall apply per SR22 (see Appendix B) It should be noted that the SR22 product is fully interchangeable with standard API 5B LTC connections However, the SR22 design criteria concerning leak resistance shall not apply for such mixed product The application of API connections or pipe in elevated temperature or sour service conditions is beyond the scope of this document Caution: liquid metal embrittlement may result when thread compound containing lead is used with tin plated couplings at elevated temperatures for some material Use of standard API thread compound in applications involving temperatures in excess of 275°F is cautioned Note: It should be recognized by the user that compliance with API Rp 5A3 does not in and of itself ensure adequate thread compound system performance in field service The user has the responsibility of evaluatingthe results obtained from the recommended procedures and test protocols and determining if the thread compound system in question meets the anticipated requirements of that particular field service application SR22.2 Add thefollowing to Appendix B SR22.2.1 VenQ API Spec 5CT-SR22 pipe end triangle stamps with paint marks are in the proper acceptance position window per Table SR B1 (Refer to 4.1.1) APPENDIX B-(RP 5Cl-SR22) SUPPLEMENTARY REQUIREMENT FOR ENHANCED LEAK RESISTANCE LTC CONNECTION SR22.2.2 For SR22, tongs should be sized to produce at least 150% of the makeup target torque indicated in Table B1 The SR22 specification requires makeup based on power turns, not torque Torque is not a basis for rejection, but is an indicator of process control Maximum and minimum torque values of each run of pipe should be documented.The backup line should be near perpendicular to the tong and pipe axis (Refer to 4.1.6) SR22.1 SCOPE SR22 defines a performance-based LTC connection that varies from the basic LTC as defined in API Std 5B with makeup per API RP 5C1 in the following principal areas: SR22.2.3 Repair of threads (other than deburring)between 0.5 inches from the pipe end and the L1 plane is not permitted (Refer to 4.1.7b) `,,,,`,-`-`,,`,,`,`,,` - Special tolerance and gaging requirements (Refer to API Std 5B Tables El and E2) Ring and Plug gages are not a basis for acceptance or rejection of SR22 LTC threads Requirement for power turns makeup which are often significantly greater than the 3, 3.5 or turns typically referenced in API Std 5B Makeup within field end position stamp/paint mark (API Spec 5CT Figure SR22-1) A light coating of API RP 5A3 thread compound shall be applied to either the pin or coupling thread In all cases, the full thread form outline shall be clearly discernable after applying thread compound uniformly over the entire threaded surface A tool joint brush is not recommended Reliable leak resistance requires dimensional control within specification, proper coupling coating and proper application of thread compound, adequate power turns makeup, and culling of galled or damaged connections SR22.3 Stabbing, Making Up and Lowering (Refer to 4.3) SR22.3.1.1 A light coat of API RP 5A3 thread compound shall be applied to either the pin or coupling As an option (if galling is suspected), a light coating of API RP 5A3 thread compound shall be applied to the coupling, and a light coating of API RP 5A3 thread compound shall be applied to the pin between the L1 and L4 planes Lay down galled or damaged connections In all cases, the fidl thread form outline shall be clearly discernable after applying thread compound uniformly over the entire threaded surface An automated spray system or “mustache brush” is recommended; a large tool joint or drill pipe brush is unacceptable SR22.3.2 Man on stabbing board is required Spinning line is not permitted (Refer to 4.3.3) 21 Copyright American Petroleum Institute Reproduced by IHS under license with API No reproduction or networking permitted without license from IHS PREPARATION AND INSPECTION BEFORE RUNNING (REFER TO 4.1) Not for Resale API TECHNICAL REPORT 5TRSR22 SR22.3.3 Power tongs shall be used An accurate method of measuring makeup torque should be used All equipment shall be in current calibration On rig sites, the value of the moment arm used with the load cell should be verified, and the moment arm should be near perpendicular to the reaction line Verify that correct moment arm length has been used in any digital monitoring devices The SR22 specifcation requires makeup based on position and power-turns Powerturns are the number of turns past 5% to 10% of the target makeup torque Torque is not a basis for rejection, but is an indicator of process control Maximum and minimum torque should be documented Refer to Section SR22.5 for torque variation discussion (Refer to 4.3.4) SR22.4 FIELD MAKEUP (REFER TO 4.4) SR22.4.1 SR22 specifications require makeup based on power turns and position, not torque Torque is not a basis for acceptance or rejection, but is an indicator of process control Refer to SR22.5 for target torque and troubleshooting Reliable leak resistance requires proper application of thread compound, proper makeup, and rejection of galled or damaged connections SR22.4.1.1 Options are allowed for SR22 connection makeup (Refer to 4.4.1 a.1) Rejects occur when the coupling does not make the position criteria with minimum powerturns Control of the coupling make-up shall be by one of the following methods By Power Turn via Torque-turn equipment, or by counting power turns Power-turns start at a torque value equal to 5% to 10% of the target given in Table B1 The number of power turns shall equal or exceed the minimum number of power turns specified in Table B1 The acceptance position when counting turns shall be two turns below the base of the triangle to the apex of the triangle If torque is observed to oscillate (often a result of eccentricities), adjustment of the definition of start of power torque upward may be required Ensure proper alignment in makeup equipment and ident@ source of torque oscillation U) Makeup to within the triangle position and verify power turn requirement Repeat power-turn verification at regular intervals iii) Torque guided make-up, per 4.4, with the revision of determining torque via the number of power-tight turns per Table B Makeup torque should relate to an upper value of actual field make-up torque values Repeat power-turn verification at regular intervals Makeup shall be within the triangle position mark i) SR22.4.1.2 If a connection is broken-out, subsequent makeup shall be per SR22.4.1.1 option i) It is recommended that a light coating of API RP 5A3 thread compound be applied to the coupling, and a light coating of API RP 5A3 Copyright American Petroleum Institute Reproduced by IHS under license with API No reproduction or networking permitted without license from IHS thread compound be applied to the pin between the L1 and L4 planes to prevent galling when repeating makeup SR22.4.2 Tong speed should not exceed 10 RPM after 10% of the target makeup torque (Refer to 4.4.1 a.2) SR22.4.3 The SR22 specifcation requires makeup based on power turns and position, not torque Rejected pipe shall be laid down, and pin and couplings should be inspected prior to continued running Torque is not a basis for acceptance or rejection, but is an indicator of process control It is expected that the fidl make-up torque will be within f 50% of the target torque presented in Table B1 SR22.4.4 If the SR22 mill end coupling shows minor additional makeup, verify that field end power turns are not significantly above requirements In addition, review Section 5.1 for factors which affect torque to resolve the source of higher than expected field end torque (Refer to 4.4.4) In all cases, final makeup shall be within the position triangle SR22.5 CAUSES OF SR22 CASING TROUBLES (REFERTO 4.8.) API Spec 5CT SR22 makeup is required to ensure leak resistance and reliability Leak resistance requires that a minimum specified amount of power turns makeup be developed The SR22 specifcation requires makeup based on position as well as minimum power-turns API connections require contact pressure to achieve leak resistance The position criteria are required to ensure that adequate relative movement between the pin and the box occurs, to ensure the interval of the pin where the taper is not controlled does not mate with coupling threads, and to avoid pipe ends butting The position requirement also safeguards against galling, connection damage, cross threading, etc Since connections include variations in dimensions, thread compound and surface finish, the amount of torque at a specific position will generally vary from connection to connection In addition, interference will vary along the length of a given connection for a specified makeup position, as will thread contact pressure Consequently, torque variation is expected It is for this reason that a torque requirement is not defined in SR22 Although API Spec 5CT SR22 makeup is relatively easy to implement, proper inspection, calibrated makeup equipment, and attention is required for each aspect of the makeup procedure Connections that not meet the makeup criteria should be rejected Couplings that not make the power turn criterion within the position criterion should be rejected SR22.5.1 Torque at Position Factors Torque at position is defined primarily through the variables of contact pressure and coefficient of friction Contact pressure at a given position is affected by interference as a result of dimensional control (pipe and coupling thickness, Not for Resale `,,,,`,-`-`,,`,,`,`,,` - 22 REQUIREMENTS FOR ENHANCED LEAKRESISTANCE LTC pitch diameter, taper and lead, tin/plating thickness) In addition, contact pressure will be affected by pin yielding and eccentricities such as ovality & end-hook, as well as the alignment between the pin and coupling tend to cyclically affect contact pressure, and hence torque The apparent coefficient of friction is a function of thread compound type and the amount of compound applied, surface roughness, plating type and roughness, corrosion, cleanliness and thread damage, galling, and tong speed In addition, proper alignment as well as proper appraisal of coupling position and accurate torque measurement is required The following details the effects of the various factors affecting torque at position SR22.5.1.1 Torque Makeup Troubleshooting Interference Variations (dimensional control): Review inspection records if possible and recheck dimensions and thread elements Tin plated couplings should be stripped of tin prior to Pitch Diameter or any measurement Pitch Diameter: Re-check coupling and pin pitch diameter if possible Pin pitch diameters smaller than nominal can significantly decrease torque, as can larger than nominal coupling pitch diameter Improper pitch diameter requires corrective action Minor pitch diameter variations can be accommodatedusing Method I) of SR22.4.1.1 Thread Taper: Re-check pin and coupling thread taper Maximum torque is obtained by near nominal thread taper Torque decreases with taper mismatches Worst-case leak resistance occurs with fast pin slow box taper combinations Pipe Diameter and Thickness: Re-check pipe outside diameter (OD) and wall thickness Torque decreases with pin wall thickness An oversized OD may result in thin pin, thus reducing torque Check for uniform pin face width Eccentricities can result in thin pin sections in an otherwise properly sized pipe This can result in local section yielding and reduced torque Coupling Diameters: Re-check coupling outer and pitch diameter Torque decreases with coupling wall thickness, an undersized coupling OD and/or oversized pitch diameter may result in a thin coupling, thus reducing torque Check for uniform coupling face width Eccentricities can result in thin coupling sections in an otherwise properly sized coupling This can result in local section yielding and reduced torque Caution: undersized couplings can compromise leak resistance Thread Lead: Re-check thread lead for couplings and pins If leads are not well controlled,both high and low torque can result Minor negative pin thread lead (or positive coupling thread lead) variation can reduce torque values Major variations in lead generally result in higher torque Tin Plating Thickness: Re-check plating type and thickness on the coupling Target torque values are provided for 0.003” of tin and near O.OOO5” of phosphate Tin plating thickness variations can result in torque scatter Copyright American Petroleum Institute Reproduced by IHS under license with API No reproduction or networking permitted without license from IHS SR22.5.1.2 23 Contact Pressure Variations: Evidence of pin yielding: Pin yielding is normally apparent when torque remains constant or near constant with rotation Inspection records should be reviewed and yield strength should be re-checked Pipe dimensions(oversized inner diameter or thin wall pipe) can also result in pin yielding End Hook: End-hook can result in cyclical torque values This typically occurs on a per rotation cycle and tends to increase torque End hook checks should occur during mill makeup and when running pipe in the field To minimize torque scatter, galling, and obtain proper torque, segregate hook ends from items to be run in the hole Alignment: Alignment checks should occur at the beginning and during a run of pipe to minimize torque scatter, galling, and obtain proper torque SR22.5.1.3 Coefficient of FrictionVariations: Thread compound type: Torque values vary with thread compound See API RP 5A3 for thread compound specifications Significantvariations in friction factor occur within the API RP 5A3 specifications Thread compound must be free of foreign substances Stir thread compound at the beginning of the job and periodically during the course of the job Thread compound should not be allowed to reach temperatures below 45°F Amount of compound applied: Thread compound application is critical to torque and leak resistance Excessive thread compound application can result in low torque due to buildup of thread compound pressure in the thread annulus, which results in decreased metal-to-metal contact A light coat of thread compound is specified See Section 3.1 If torque is low, consider reducing the amount of thread compound being used Tong speed: Tong speed and thread compound application combine to give a hydraulic effect Initial rotation through the free running portion of makeup can proceed at slightly higher speeds slightly Tong speed should not exceed 10 RPM after 10% of target torque has been reached Surface roughness: Excessive surface roughness can result in higher than expected torque values This can occur during manufacturing, handling damage, damage during cleaning and applying thread protectors, and contaminated storage/thread compounds To minimize torque scatter, galling, and obtain proper performance, these connections should be removed from items to be run in the hole Galling: Galled or damaged connections shall be rejected Galling is the welding of pin and coupling, and significantly increases torque To eliminate galling, consider the following: 1) use tin plated couplings, 2) carefully select the thread compound, 3) apply a light coating of API RP 5A3 thread compound to the coupling, and to the pin between the L1 and LA planes, and 4) check alignment of pin and coupling Refer to Figure SR22-1 for thread compound application Not for Resale `,,,,`,-`-`,,`,,`,`,,` - SUPPLEMENTARY 24 API TECHNICAL REPORT 5TRSR22 ing, as a result of handling and storage damage, damage during cleaning and applying thread protectors, improper cleaning operations, and contaminated storagekhread compounds Contaminationby drilling mud is expected to significantly increase torque To minimize torque scatter, galling, and obtain proper performance, these connections should be removed from items to be run in the hole `,,,,`,-`-`,,`,,`,`,,` - Plating type: Plating type and thickness can affect torque values An appropriate surface coating should be applied to avoid galling and affect a seal Tin plating can decrease torque by as much as 25% to 50% compared to phosphated couplings Defective surface treatments can result in galling Corrosion, cleanliness and thread damage: Corrosion, lack of cleanliness and thread damage can result in unexpected torque values This can occur during manufactur- Copyright American Petroleum Institute Reproduced by IHS under license with API No reproduction or networking permitted without license from IHS Not for Resale `,,,,`,-`-`,,`,,`,`,,` - 06/02 Copyright American Petroleum Institute Reproduced by IHS under license with API No reproduction or networking permitted without license from IHS Not for Resale Additional copies available from API Publications and Distribution: (202) 682-8375 Information about API Publications, Programs and Services is available on the World Wide Web at: http://www.api.org American Petroleum Institute 1220 L Street, Northwest Washington, D.C 20005-4070 202-682-8000 Order No GSR221 `,,,,`,-`-`,,`,,`,`,,` - Copyright American Petroleum Institute Reproduced by IHS under license with API No reproduction or networking permitted without license from IHS Not for Resale