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1、TECHNICAL SPECIFICATION LINEPIPE FOR USE IN OIL AND GAS OPERATIONS UNDER SOUR CONDITIONS (AMENDMENTS/SUPPLEMENTS TO API SPEC 5L) DEP 31.40.20.31-Gen. December 1993 DESIGN AND ENGINEERING PRACTICE USED BY COMPANIES OF THE ROYAL DUTCH/SHELL GROUP This document is confidential. Neither the whole nor an
2、y part of this document may be disclosed to any third party without the prior written consent of Shell Internationale Petroleum Maatschappij B.V., The Hague, the Netherlands. The copyright of this document is vested in Shell Internationale Petroleum Maatschappij B.V., The Hague, the Netherlands. All
3、 rights reserved. Neither the whole nor any part of this document may be reproduced, stored in any retrieval system or transmitted in any form or by any means (electronic, mechanical, reprographic, recording or otherwise) without the prior written consent of the copyright owner. PREFACE DEP (Design
4、and Engineering Practice) publications reflect the views, at the time of publication, of: Shell International Oil Products B.V. (SIOP) and Shell International Exploration and Production B.V. (SIEP) and Shell International Chemicals B.V. (SIC) The Hague, The Netherlands, and other Service Companies.
5、They are based on the experience acquired during their involvement with the design, construction, operation and maintenance of processing units and facilities, and they are supplemented with the experience of Group Operating companies. Where appropriate they are based on, or reference is made to, na
6、tional and international standards and codes of practice. The objective is to set the recommended standard for good design and engineering practice applied by Group companies operating an oil refinery, gas handling installation, chemical plant, oil and gas production facility, or any other such faci
7、lity, and thereby to achieve maximum technical and economic benefit from standardization. The information set forth in these publications is provided to users for their consideration and decision to implement. This is of particular importance where DEPs may not cover every requirement or diversity o
8、f condition at each locality. The system of DEPs is expected to be sufficiently flexible to allow individual operating companies to adapt the information set forth in DEPs to their own environment and requirements. When Contractors or Manufacturers/Suppliers use DEPs they shall be solely responsible
9、 for the quality of work and the attainment of the required design and engineering standards. In particular, for those requirements not specifically covered, the Principal will expect them to follow those design and engineering practices which will achieve the same level of integrity as reflected in
10、 the DEPs. If in doubt, the Contractor or Manufacturer/Supplier shall, without detracting from his own responsibility, consult the Principal or its technical advisor. The right to use DEPs is granted by SIOP, SIEP or SIC, in most cases under Service Agreements primarily with companies of the Royal D
11、utch/Shell Group and other companies receiving technical advice and services from SIOP, SIEP or SIC. Consequently, three categories of users of DEPs can be distinguished: 1)Operating companies having a Service Agreement with SIOP, SIEP, SIC or other Service Company. The use of DEPs by these Operatin
12、g companies is subject in all respects to the terms and conditions of the relevant Service Agreement. 2)Other parties who are authorized to use DEPs subject to appropriate contractual arrangements. 3)Contractors/subcontractors and Manufacturers/Suppliers under a contract with users referred to under
13、 1) or 2) which requires that tenders for projects, materials supplied or - generally - work performed on behalf of the said users comply with the relevant standards. Subject to any particular terms and conditions as may be set forth in specific agreements with users, SIOP, SIEP and SIC disclaim any
14、 liability of whatsoever nature for any damage (including injury or death) suffered by any company or person whomsoever as a result of or in connection with the use, application or implementation of any DEP, combination of DEPs or any part thereof. The benefit of this disclaimer shall inure in all r
15、espects to SIOP, SIEP, SIC and/or any company affiliated to these companies that may issue DEPs or require the use of DEPs. Without prejudice to any specific terms in respect of confidentiality under relevant contractual arrangements, DEPs shall not, without the prior written consent of SIOP and SIE
16、P, be disclosed by users to any company or person whomsoever and the DEPs shall be used exclusively for the purpose for which they have been provided to the user. They shall be returned after use, including any copies which shall only be made by users with the express prior written consent of SIOP a
17、nd SIEP. The copyright of DEPs vests in SIOP and SIEP. Users shall arrange for DEPs to be held in safe custody and SIOP or SIEP may at any time require information satisfactory to them in order to ascertain how users implement this requirement. All administrative queries should be directed to the DE
18、P Administrator in SIOP. NOTE: In addition to DEP publications there are Standard Specifications and Draft DEPs for Development (DDDs). DDDs generally introduce new procedures or techniques that will probably need updating as further experience develops during their use. The above requirements for d
19、istribution and use of DEPs are also applicable to Standard Specifications and DDDs. Standard Specifications and DDDs will gradually be replaced by DEPs. DEP 31.40.20.31-Gen. December 1993 Page 2 TABLE OF CONTENTS PART IINTRODUCTION.6 1.1SCOPE 6 1.2DISTRIBUTION, INTENDED USE AND REGULATORY CONSIDERA
20、TIONS 6 1.3DEFINITIONS6 1.4ABBREVIATIONS7 1.5CROSS-REFERENCES7 1.6GUIDANCE FOR USE.7 1.7INFORMATION TO BE SUPPLIED BY THE PRINCIPAL8 PART IIAMENDMENTS/SUPPLEMENTS TO API SPEC 5L9 SECTION 1SCOPE 9 1.1COVERAGE9 1.7CERTIFICATION.9 1.8QUALITY SYSTEM.9 1.9COMPLIANCE.9 SECTION 2PROCESS OF MANUFACTURE AND
21、MATERIAL10 2.1PROCESS OF MANUFACTURE10 2.2COLD EXPANSION.12 2.3MATERIAL.12 2.4HEAT TREATMENT12 SECTION 3CHEMICAL PROPERTIES AND TESTS14 3.1COMPOSITION.14 3.2CHEMICAL ANALYSIS14 3.4PRODUCT ANALYSIS14 SECTION 4MECHANICAL PROPERTIES AND TESTS.16 4.1MECHANICAL PROPERTIES.16 4.2TENSILE TESTS.16 4.3TENSIL
22、E TESTING.16 4.4LONGITUDINAL TENSILE TESTS.16 4.5TRANSVERSE TENSILE TESTS.16 4.6WELD TENSILE TESTS.16 4.11FLATTENING TEST ACCEPTANCE CRITERIA17 4.19FRACTURE TOUGHNESS TESTS17 4.21METALLOGRAPHIC EXAMINATION.17 4.22HARDNESS TESTING17 SECTION 5HYDROSTATIC TESTS18 5.1HYDROSTATIC TEST REQUIREMENTS18 5.3T
23、EST PRESSURES18 SECTION 6DIMENSIONS, WEIGHTS AND LENGTHS19 6.1GENERAL - DIMENSIONS AND WEIGHTS.19 6.2DIAMETER20 6.3WALL THICKNESS.20 6.5LENGTH 20 6.7JOINTERS.21 SECTION 7PIPE ENDS AND THREAD PROTECTORS.22 7.3PLAIN ENDS.22 SECTION 9NON-DESTRUCTIVE INSPECTION.23 9.1METHODS OF INSPECTION.23 9.2RADIOGRA
24、PHIC INSPECTION EQUIPMENT.24 9.5NDT REFERENCE STANDARDS.24 9.14ULTRASONIC AND ELECTROMAGNETIC INSPECTION EQUIPMENT24 9.15NDT REFERENCE STANDARDS.26 9.16ACCEPTANCE LIMITS.27 9.19MAGNETIC PARTICLE INSPECTION EQUIPMENT.28 DEP 31.40.20.31-Gen. December 1993 Page 3 SECTION 10WORKMANSHIP, VISUAL INSPECTIO
25、N AND REPAIR OF DEFECTS.29 10.1VISUAL INSPECTION.29 10.2PURCHASER INSPECTION.29 10.3WORKMANSHIP AND DEFECTS29 10.4DISPOSITION OF DEFECTS.30 10.5REPAIR OF DEFECTS BY WELDING30 10.6PROCEDURE FOR REPAIR BY WELDING OF SEAMLESS PIPE AND PARENT METAL OF WELDED PIPE.31 10.7PROCEDURE FOR REPAIR OF SUBMERGED
26、 ARC WELDS31 10.8PROCEDURE FOR REPAIR OF ELECTRIC WELDS31 SECTION 11MARKING AND COATING.32 11.1MARKING-GENERAL.32 11.2LOCATION OF MARKINGS32 11.3SEQUENCE OF MARKINGS32 11.11COATINGS32 SECTION 12MANUFACTURING PROCEDURE AND WELDING PROCEDURE33 12.1MANUFACTURING PROCEDURE SPECIFICATION33 12.2WELDING PR
27、OCEDURE QUALIFICATION.34 SECTION 13FIRST DAY PRODUCTION TESTS36 13.1GENERAL 36 13.2NON-DESTRUCTIVE TESTING.36 13.3PHYSICAL TESTING36 13.4MACROGRAPHIC, MICROGRAPHIC AND HARDNESS EXAMINATION.37 APPENDIX BREPAIR WELDING PROCEDURE.39 APPENDIX ESUPPLEMENTARY REQUIREMENTS39 SUPPLEMENTARY REQUIREMENT SR5.3
28、9 SUPPLEMENTARY REQUIREMENT SR6.40 SUPPLEMENTARY REQUIREMENT SR15.41 APPENDIX GPURCHASER INSPECTION.42 FIGURE ALONGITUDINAL WELD HARDNESS SURVEY.43 FIGURE B1LOCATION OF CHARPY V NOTCH SPECIMENS IN SAW PIPE WELDS .44 FIGURE B2DETAIL OF FUSION LINE CHARPY NOTCH LOCATION.44 PART IIIREFERENCE STANDARD P
29、IPE/PLATEFOR INSPECTION OF WELDS .45 FIGURE CTEST PLATE OR SECTION FOR SAW PIPE*.45 FIGURE DTEST PIPE OR SECTION FOR HFW PIPE*.45 PART IVHYDROGEN INDUCED CRACKING SENSITIVITY TESTS46 4.1SELECTION OF SAMPLES46 4.2QUALIFICATION OF TEST METHOD47 4.3SAMPLING48 4.4TEST SOLUTION49 4.5EVALUATION OF BLISTER
30、ING AND HYDROGEN INDUCED CRACKING 50 4.6REPORTING.51 FIGURE ECOUPON FROM PIPE PARENT MATERIAL.52 FIGURE FCOUPON FROM LONGITUDINALLY WELDED PIPE.53 FIGURE GSPECIMEN ARRANGEMENT IN CELL54 FIGURE HSECTIONING OF SPECIMENS FROM PIPE PARENT MATERIAL55 FIGURE ISECTIONING OF SPECIMENS FROM WELD SEAM.56 FIGU
31、RE JSECTIONING OF ALTERNATIVE SPECIMENS FROM SEAMLESS PIPE AND FITTINGS57 FIGURE KEVALUATION OF HIC.58 PART VSUMMARY OF TESTING AND INSPECTION.59 PART VIREFERENCES62 DEP 31.40.20.31-Gen. December 1993 Page 4 PART IINTRODUCTION 1.1SCOPE This DEP replaces Standard Specification L-3-2/3, dated November
32、 1984 and gives minimum requirements for the purchase of seamless, electric welded or submerged arc welded linepipe for use in oil and gas operations under sour service applications. (For non- sour service applications, DEP 31.40.20.30-Gen. should be used). This specification is based on API Spec 5L
33、, fortieth edition, November 1992 and shall be read in conjunction with that document. Part II of this DEP gives amendments and supplements to clauses of API Spec 5L which are considered necessary to enhance pipeline integrity in accordance with Shell Group requirements. All pipe specified to be in
34、accordance with this DEP shall comply with the requirements of API Spec 5L, as amended and supplemented herein. NOTE:Both API Spec 5L and this DEP adopt sampling as a method to determine batch compliance. Nevertheless, all pipes supplied shall meet all requirements of this specification. 1.2DISTRIBU
35、TION, INTENDED USE AND REGULATORY CONSIDERATIONS Unless otherwise authorised by SIPM, the distribution of this DEP is confined to companies forming part of the Royal Dutch/Shell Group or managed by a Group company, and to Contractors and Manufacturers/Suppliers nominated by them (i.e. the distributi
36、on code is “F“, as described in DEP 00.00.05.05-Gen.). This DEP is primarily intended to be used for oil and/or gas transmission pipelines and related facilities. It is intended for use by Exploration and Production, Manufacturing, Chemicals or Supply/Marketing companies which require the use of lin
37、epipe. If national and/or local regulations exist in which some of the requirements may be more stringent than in this DEP the Contractor shall determine by careful scrutiny which of the requirements are the more stringent and which combination of requirements will be acceptable as regards safety, e
38、nvironmental, economic and legal aspects. In all cases the Contractor shall inform the Principal of any deviation from the requirements of this DEP which is considered to be necessary in order to comply with national and/or local regulations. The Principal may then negotiate with the Authorities con
39、cerned with the object of obtaining agreement to follow this DEP as closely as possible. 1.3DEFINITIONS 1.3.1General definitions The Contractor is the party which carries out all or part of the design, engineering, procurement, construction, commissioning or management of a project or operation of a
40、 facility. The Principal may undertake all or part of the duties of the Contractor. The Manufacturer/Supplier is the party which manufactures or supplies equipment and services to perform the duties specified by the Contractor. The Principal is the party which initiates the project and ultimately pa
41、ys for its design and construction. The Principal will generally specify the technical requirements. The Principal may also include an agent or consultant, authorised to act for, and on behalf of, the Principal. The word shall indicates a requirement. The word should indicates a recommendation. DEP
42、31.40.20.31-Gen. December 1993 Page 5 1.3.2Specific definitions Defect (in NDT) - a discontinuity or group of discontinuities whose indication(s) do not meet specified acceptance criteria. Flaw/discontinuity (in NDT) - an interruption, which may be either intentional or unintentional, in the physica
43、l structure or configuration of a pipe. Indication (in NDT) - evidence of a discontinuity that requires interpretation to determine its significance. Minimum operating temperature - the minimum temperature to which the pipeline or section of pipeline may be exposed during normal operational activiti
44、es, including start-up and shut-down operations and controlled blowdown, but excluding abnormal situations such as pipeline ruptures. Pipe bevel - the total weld preparation machined on the end of a pipe. Plate or coil - the pipe material for welded pipe before forming into the shape of a pipe. Purc
45、haser - term used in API Spec 5L which has same meaning as Principal. Radiological - term used in API Spec 5L which has the same meaning as radiographic. The term radiographic is used in this DEP. 1.4ABBREVIATIONS CE-carbon equivalent CTOD-crack tip opening displacement DN-diameter nominal DWTT-drop
46、 weight tear test EMT-electromagnetic testing FBH-flat bottomed hole GMAW-gas metal-arc welding HAZ-heat affected zone HFW-high frequency electric welding HIC-hydrogen induced cracking MT-magnetic particle testing NDT-non-destructive testing OD-outside diameter Pcm-material cracking parameter PT-liq
47、uid penetrant examination RDH-radial drilled hole RT-radiographic testing SAW-submerged arc welding SMLS-seamless SPW-spiral welding UT-ultrasonic testing 1.5CROSS-REFERENCES Where cross-references to other parts of this DEP are made, the referenced section number is shown in brackets. Other documen
48、ts referenced in this DEP are listed in (Part VI). 1.6GUIDANCE FOR USE The amendments to API Spec 5L given in Part II are directly related to equivalent sections in API Spec 5L. For clarity, the section and paragraph numbering of API Spec 5L has been used as far as possible. Where clauses in API Spe
49、c 5L are referenced within this DEP, it shall mean those clauses as amended by this DEP. Clauses in API Spec 5L that are not amended by this DEP shall remain valid as written. DEP 31.40.20.31-Gen. December 1993 Page 6 1.7INFORMATION TO BE SUPPLIED BY THE PRINCIPAL There are a number of items within this DEP which require input from the Principal. Where these are mentioned within this DEP, they are identified by an annotation (A) in the left hand margin, indicating an action required by the Principal. The information which shall be supplied by the Principal to the Manufacturer at the time of
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