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1、BRITISH STANDARD BS EN ISO 16708:2006 Petroleum and natural gas industries Pipeline transportation systems Reliability-based limit state methods The European Standard EN ISO 16708:2006 has the status of a British Standard ICS 75.200 ? Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 15:54:45 G
2、MT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 16708:2006 This British Standard was published under the authority of the Standards Policy and Strategy Committee ? on 28 April 2006 BSI 2006 ISBN 0 580 48156 5 National foreword This British Standard is the official English language version of? EN
3、 ISO 16708:2006. It is identical with ISO 16708:2006. The UK participation in its preparation was entrusted by Technical Committee PSE/17, Materials and equipment for petroleum, petrochemical and natural gas industries, to Subcommittee PSE/17/2, Transmission pipelines, which has the responsibility t
4、o: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep ? UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organi
5、zations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Corre
6、spondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not
7、of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN ISO title page, the EN ISO foreword page, the ISO title page, pages ii to v, a blank page, pages 1 to 57 and a back cover. The BSI copyright notice displayed in thi
8、s document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 15:54:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 16708 April 2006 ICS 7
9、5.200 English Version Petroleum and natural gas industries - Pipeline transportation systems - Reliability-based limit state methods (ISO 16708:2006) Industries du ptrole et du gaz naturel - Systmes de transport par conduites - Mthodes aux tats-limites bases sur la fiabilit (ISO 16708:2006) Erdl- un
10、d Erdgasindustrie - Rohrleitungstransportsysteme - Zuverlssigkeitsanalysen (ISO 16708:2006) This European Standard was approved by CEN on 3 March 2006. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the statu
11、s of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A ve
12、rsion in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Est
13、onia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUR
14、OPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2006 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 16708:2006: E Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 15:54:45 GMT+00:00 2006
15、, Uncontrolled Copy, (c) BSI Foreword This document (EN ISO 16708:2006) has been prepared by Technical Committee ISO/TC 67 “Materials, equipment and offshore structures for petroleum and natural gas industries“ in collaboration with Technical Committee CEN/TC 12 “Materials, equipment and offshore st
16、ructures for petroleum, petrochemical and natural gas industries“, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2006, and conflicting national
17、 standards shall be withdrawn at the latest by October 2006. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
18、Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Endorsement notice The text of ISO 16708:2006 has been approved by CEN as EN ISO 16708:2006 with
19、out any modifications. EN ISO 16708:2006 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 15:54:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Reference number ISO 16708:2006(E) INTERNATIONAL STANDARD ISO 16708 First edition 2006-04-01 Petroleum and natural gas industries Pipeline transportatio
20、n systems Reliability-based limit state methods Industries du ptrole et du gaz naturel Systmes de transport par conduites Mthodes aux tats-limites bases sur la fiabilit EN ISO 16708:2006 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 15:54:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii Lic
21、ensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 15:54:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 16708:2006 iii Contents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references . 1 3 Terms and definitions. 1 4 Symbols and abbreviated terms . 5 4.1 Symbols . 5 4.2 Abbreviated
22、 terms 6 5 Principles for design and operation . 7 6 Reliability based limit state methods 9 6.1 General. 9 6.2 Design and operational data basis Data gathering 9 6.3 Safety requirements target 9 6.4 Failure mode analysis 10 6.5 Uncertainty analysis . 10 6.6 Reliability analysis 11 6.7 Safety and ri
23、sk assessment. 11 7 Design and operational requirements 12 7.1 General. 12 7.2 Design and construction 12 7.3 Operation and maintenance 12 7.4 Re-qualification . 13 7.5 Hazards 13 8 Acceptance criteria and safety classes 13 8.1 Safety requirements . 13 8.2 Classification of limit states 14 8.3 Categ
24、orization of fluids 14 8.4 Pipeline location and consequence categorization 15 8.5 Safety classes . 16 9 Target safety levels and risk levels. 17 10 Failure modes 17 10.1 General. 17 10.2 Internal pressure induced failure modes . 17 10.3 External pressure induced failure modes 18 10.4 Failure due to
25、 external load effects 18 10.5 Failure due to third-party activity 19 10.6 Corrosive environment induced failure modes . 19 10.7 Failure due to combined loads 19 11 Pipeline operational management 20 11.1 General. 20 11.2 Operational management procedures 20 Annex A (informative) Uncertainty and rel
26、iability analysis Method description. 23 Annex B (informative) Statistical database Uncertainty values 43 Annex C (informative) Target safety levels Recommendations 49 Bibliography . 56 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 15:54:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO
27、16708:2006 iv Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject
28、 for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC)
29、on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees
30、 are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be hel
31、d responsible for identifying any or all such patent rights. ISO 16708 was prepared by Technical Committee ISO/TC 67, Materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries, Subcommittee SC 2, Pipeline transportation systems. Licensed Copy: sheffieldun s
32、heffieldun, na, Sun Nov 19 15:54:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI v Introduction The International Standard ISO 13623 allows the use of innovative techniques and procedures such as reliability-based limit state methods providing the minimum requirements of ISO 13623 are satisfied. This
33、International Standard provides the supplement to ISO 13623 in giving recommendations and specifying the framework and principles for the application of the probabilistic approach, i.e. “reliability-based limit state methods”. Pipeline integrity management during design and operation are performed b
34、y the following two limit state approaches: ? a deterministic approach, with the use of safety or usage factors applied to characteristic loads and resistances; and ? a probabilistic approach, based on structural reliability analysis applied to the relevant limit states, e.g. reliability-based limit
35、 state methods. Both approaches satisfy the safety requirements; implicitly by the deterministic approach (via earlier-calibrated safety factors) and explicitly by the probabilistic approach (a direct check on the actual safety level) as illustrated in Figure 1. Significant differences exist among m
36、ember countries in the areas of public safety and protection of the environment. Within the safety framework of this International Standard, such differences are allowed for and individual member countries can apply their national requirements for public safety and the protection of the environment
37、to the use of this International Standard. EN ISO 16708:2006 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 15:54:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI blank Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 15:54:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 1 Petroleum and nat
38、ural gas industries Pipeline transportation systems Reliability-based limit state methods 1 Scope This International Standard specifies the functional requirements and principles for design, operation and re- qualification of pipelines in the petroleum and natural gas industries using reliability-ba
39、sed limit state methods as permitted by ISO 13623. Reliability-based limit state methods provide a systematic way to predict pipeline safety in design and operation. This International Standard supplements ISO 13623 and can be used in cases where ISO 13623 does not provide specific guidance and wher
40、e limit states methods can be applied, such as, but not limited to, ? qualification of new concepts, e.g. when new technology is applied or for design scenarios where industry experience is limited, ? re-qualification of the pipeline due to a changed design basis, such as service-life extension, whi
41、ch can include reduced uncertainties due to improved integrity monitoring and operational experience, ? collapse under external pressure in deep water, ? extreme loads, such as seismic loads (e.g. at a fault crossing), ice loads (e.g. by impact from ice keels), ? situations where strain-based criter
42、ia can be appropriate. This document applies to rigid metallic pipelines on-land and offshore used in the petroleum and natural gas industries. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cit
43、ed applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 13623:2000, Petroleum and natural gas industries Pipeline transportation systems 3 Terms and definitions For the purposes of this document, the following terms and definitions ap
44、ply. 3.1 basic variable load or resistance variable entering the limit state function including the variable accounting for model uncertainty in the limit state function itself 3.2 characteristic load nominal value of a load to be used in determination of load effects NOTE Characteristic load is nor
45、mally based upon a defined fractile in the upper end of the distribution function of the load. EN ISO 16708:2006 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 15:54:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 2 3.3 characteristic resistance nominal value of a strength parameter to be used
46、 in determination of capacities NOTE Characteristic resistance is normally based on a defined fractile in the lower end of the distribution function of the resistance. 3.4 characteristic value nominal value to characterize the magnitude of a stochastic variable NOTE Characteristic value is normally
47、defined as a fractile of the probability distribution of the variable. 3.5 commissioning activities associated with the initial filling of a pipeline with the fluid to be transported ISO 13623 3.6 construction phase comprising installation, pressure testing and commissioning 3.7 design life period o
48、f time selected for the purpose of verifying that a replaceable or permanent component is suitable for the anticipated period of service ISO 13623 3.8 design point most probable outcome of the basic variables when failure occurs NOTE The design point is the point on the limit-state surface with the
49、highest probability density. 3.9 design value value to be used in the deterministic design procedure, i.e., characteristic value multiplied by the safety factor 3.10 failure loss of ability of a component or a system to perform its required function 3.11 fluid category categorization of the transported fluid according to hazard potential 3.12 importance factor dimensionless number between zero and one describing the contribution of a random variable to the overall u