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    API TR 17TR7-2017 Verification and Validation of Subsea Connectors (FIRST EDITION).pdf

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    API TR 17TR7-2017 Verification and Validation of Subsea Connectors (FIRST EDITION).pdf

    1、Verification and Validation of Subsea ConnectorsAPI TECHNICAL REPORT 17TR7FIRST EDITION, APRIL 2017Special NotesAPI publications necessarily address problems of a general nature. With respect to particular circumstances, local, state, and federal laws and regulations should be reviewed.Neither API n

    2、or any of APIs employees, subcontractors, consultants, committees, or other assignees make any warranty or representation, either express or implied, with respect to the accuracy, completeness, or usefulness of the information contained herein, or assume any liability or responsibility for any use,

    3、or the results of such use, of any information or process disclosed in this publication. Neither API nor any of APIs employees, subcontractors, consultants, or other assignees represent that use of this publication would not infringe upon privately owned rights.API publications may be used by anyone

    4、 desiring to do so. Every effort has been made by the Institute to ensure 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 responsibil

    5、ity for loss or damage resulting from its use or for the violation of any authorities having jurisdiction with which this publication may conflict.API publications are published to facilitate the broad availability of proven, sound engineering and operating practices. These publications are not inte

    6、nded to obviate the need for applying sound engineering judgment regarding when and where these publications should be utilized. The formulation and publication of API publications is not intended in any way to inhibit anyone from using any other practices.Any manufacturer marking equipment or mater

    7、ials 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 do in fact conform to the applicable API standard.All rights reserved. No p

    8、art of this work may be reproduced, translated, 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 Publisher, API Publishing Services, 1220 L Street, NW, Washington

    9、, DC 20005.Copyright 2017 American Petroleum InstituteForewordNothing 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 cont

    10、ained in the publication be construed as insuring anyone against liability for infringement of letters patent.The verbal forms used to express the provisions in this document are as follows.Shall: As used in a standard, “shall” denotes a minimum requirement in order to conform to the standard.Should

    11、: As used in a standard, “should” denotes a recommendation or that which is advised but not required in order to conform to the standard.May: As used in a standard, “may” denotes a course of action permissible within the limits of a standard.Can: As used in a standard, “can” denotes a statement of p

    12、ossibility or capability.This document was produced under API standardization procedures that ensure appropriate notification and participation in the developmental process and is designated as an API standard. Questions concerning the interpretation of the content of this publication or comments an

    13、d questions concerning the procedures under which this publication was developed should be directed in writing to the Director of Standards, American Petroleum Institute, 1220 L Street, NW, Washington, DC 20005. Requests for permission to reproduce or translate all or any part of the material publis

    14、hed herein should also be addressed to the director.Generally, API standards are reviewed and revised, reaffirmed, or withdrawn at least every five years. A one-time extension of up to two years may be added to this review cycle. Status of the publication can be ascertained from the API Standards De

    15、partment, telephone (202) 682-8000. A catalog of API publications and materials is published annually by API, 1220 L Street, NW, Washington, DC 20005.Suggested revisions are invited and should be submitted to the Standards Department, API, 1220 L Street, NW, Washington, DC 20005, standardsapi.org.ii

    16、iContentsPage1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Normative References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

    17、 . . . . . . . . . . . . . . . . . . . . . . 13 Terms, Definitions, Abbreviated Terms, and Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23.1 Terms and Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

    18、 . . . . . . . . . . . . . . . . . . . . . . . 23.2 Abbreviated Terms and Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

    19、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64.1 Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64.2 Connector Descriptions . . . . . . . . . . . . .

    20、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74.3 Performance Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Verification Analysis Requireme

    21、nts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85.1 Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85.2 Stru

    22、ctural Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85.3 Fatigue Assessment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

    23、. . . . . . . . . . 115.4 Fatigue Load Design Format and Fatigue Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166 Validation Testing Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

    24、. . . . . . . 166.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166.2 Setup and Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

    25、 . . . . . . . . . . . . . . . . . . . . . . . . . 176.3 Test Media . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176.4 Hold Periods. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

    26、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186.5 Acceptance Criteria. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186.6 Post-test Examination. . . . . . . .

    27、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196.7 Pressure Test Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196.8 External Load

    28、Test Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

    29、 20Annex A (informative) Material Properties for Fatigue Assessment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Annex B (informative) Nondestructive Examination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24Bibliography . .

    30、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26Figures1 Normal, Extreme, and Survival Structural Capacity Illustration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

    31、 Connector Capacity Chart Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103 Example Stress Transfer Function (STF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Table

    32、s1 Criteria for Elastic Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 Proposed LRFD Load Factors for Elastic-Plastic Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 P

    33、roposed Design Fatigue Factor, Df. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16vIntroductionThis technical report has been prepared to provide a validation test protocol for subsea connectors for validating the verification analysis.

    34、The verification analysis methodology provides guidance to generate connector performance capacity charts. The intention is to facilitate and complement the connector selection process by ensuring that capacities are determined using common industry design criteria, and to demonstrate leak tightness

    35、 and structural capacities through testing. This report is not intended to replace sound engineering judgement, nor should it limit additional scope validation tests. vi1Verification and Validation of Subsea Connectors1 ScopeThis Technical Report provides requirements and recommendations for the ver

    36、ification and validation of subsea connectors. It is intended to serve as a common reference for designers, manufacturers, and users to improve the performance assessment of subsea connectors and to improve the reliability and integrity of subsea systems.This technical report is applicable to subsea

    37、 connectors along the vertical centerline of subsea hardware (i.e. tree, tubing head, tree cap, tree running tool, well control package connectors, and EDP connectors), the subsea wellhead, and the completion/workover riser. The methodology provided herein may also be used in other connector designs

    38、. Connectors outboard of the vertical centerline are addressed in API 17R.The scope of this Technical Report includes connectors subjected to structural and pressure loads for wellhead, tree, tubing head, tree cap, tree running tool, and EDP connectors, and is intended to define general performance

    39、capacities for API 17D, API 17G, and other applications.In the development of this Technical Report, verification and validation of casing and tubing connectors and welded connectors are recognized as ongoing work. At this time, casing and tubing connectors and welded connectors are not within the s

    40、cope of this document and are deferred to their applicable specifications.Differential external pressure effects are not within the scope of this documentrefer to API 17TR12.Fatigue verification through analysis is included. Fatigue testing of subsea connectors is not a mandatory requirement.2 Norma

    41、tive ReferencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. API Specification 6A, Specificatio

    42、n for Wellhead and Christmas Tree EquipmentAPI Specification 17D, Design and Operation of Subsea Production SystemsSubsea Wellhead and Tree EquipmentAPI Recommended Practice 17G, Recommended Practice for Completion/Workover RisersAPI Technical Report 17TR8, High-pressure High-temperature Design Guid

    43、elinesASME BPVC Section VIII, Rules for Construction of Pressure Vessels Division 2Alternative RulesASME BPVC Section VIII, Rules for Construction of Pressure Vessels Division 3Alternative Rules for Construction of High Pressure VesselsBS 7608: Guide to fatigue design and assessment of steel product

    44、sDNVGL-RP-C203: Fatigue design of offshore steel structures2 API TECHNICAL REPORT 17TR73 Terms, Definitions, Abbreviated Terms, and Symbols3.1 Terms and DefinitionsFor the purposes of this document, the following definitions apply.3.1.1 acceptance criteriaSpecified limits of acceptability applied to

    45、 process or product characteristics.3.1.2 connectorMechanical device used to connect adjacent components to create a pressure-containing structural joint resisting applied loads and preventing leakage.3.1.3 cyclic loadsAny alternating mechanical loads (internal or external), pressures or temperature

    46、s that induce cyclic stresses on the entire connector assembly or components within.3.1.4 design factor Factor used in working stress design and fatigue evaluation.3.1.5 design life Period for which subsea equipment can be used for its intended purpose with anticipated maintenance, but without subst

    47、antial repair or replacement being necessary, including storage and working periods.NOTE The design life includes the entire period from start of manufacture to termination of the subsea equipment. 3.1.6 design validation (validation testing or qualification)Process of proving a design by testing to

    48、 demonstrate conformity of the product to design requirements.NOTE Design validation can include one or more of the following (this is not an all-inclusive list): a) prototype tests,b) functional and/or operational tests of production products,c) tests specified by industry standards and/or regulato

    49、ry requirements,d) field performance tests and reviews.3.1.7 design verification (verification analysis)Process of examining the result of design and development output (both during and after the design and development phase) to determine conformity with specified requirements.NOTE Design verification activities can include one or more of the following (this is not an all-inclusive list): a) confirming the accuracy of design results through the performance of alternative calculations,VERIFICATION AND VALIDATION OF SUBSEA CONNECTORS 3b) review of design output documents independent


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