ISO INTERNATIONAL STANDARD 20815 Secondedition 2018-10 Petroleum, petrochemical and natural gas industries Production assurance and reliability management Industries du pétrole, de la pétrochimie et du gaz naturel - Assurance de la production et management de la fiabilité Reference number IS0 20815:2018(E) ISO @ IS0 2018 IS0 20815:2018(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. ..1 2 Normative references 3 Terms, definitions and abbreviated terms .2 3.1 Terms and definitions .2 3.2 Abbreviations... .15 4 Production assurance and decision support. ..17 4.1 Users of this document. 17 4.2 Framework conditions 17 4.3 Optimization process 19 4.4 Production assurance programme .21 4.4.1 Objectives 21 4.4.2 Project risk categorization 22 4.4.3 Programme activities. 23 4.5 Alternative standards. 25 5 Production assurance processes and activities ..26 Annex A (informative) Contents of production assurance programme (PAP) ..28 Annex B (informative) Core production assurance processes and activities ..30 Annex C (informative) Interacting production assurance processes and activities ..39 Annex D (informative) Production performance analyses ...43 Annex E (informative) Reliability and production performance data. ..50 Annex F (informative) Performance objectives and requirements ..52 Annex G (informative) Performance measures for production availability ..56 Annex H (informative) Relationship to major accidents ..69 Annex I (informative) Outline of techniques ..71 Bibliography .96 @ IS0 2018 - All rights reserved ii IS0 20815:2018(E) 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 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) on all matters of electrotechnical standardization. The procedures used to develop this document and those intended for its further maintenance are described in the IsO/IEc Directives, Part 1. In particular, the different approval criteria needed for the different types of Iso documents should be noted. This document was drafted in accordance with the editorial rules of the ISo/IEC Directives, Part 2 (see www.iso.org/directives). 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 held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the Iso list of patent declarations received (see www.iso.org/patents). Any trade name used in this document is information given for the convenience of users and does not constituteanendorsement. For an explanation of the voluntary nature of standards, the meaning of IsO specific terms and expressions related to conformity assessment, as well as information about Iso's adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see WWwiso .org/iso/foreword.html. This document was prepared by Technical Committee ISo/TC 67, Materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries. This second edition cancels and replaces the first edition (Is0 20815:2008), which has been technically revised. The main changes compared to the previous edition are as follows: Clause 3: several new terms, definitions and abbreviations; Clause 4: new 4.1 and new Figure 2; Annexes A, B, C and E: minor changes; Annex D: various new text and new figures; Annex F: new text in Clause E.3, new Clause E.4, and new figure; Annex G