Gp 43-52_inspection & integrity assesment

GP 43-52_Inspection & Integrity Assesment
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Guidance on Practice for Inspection and Integrity Assessment of Pipeline Systems GP 43-52 BP GROUP ENGINEERING TECHNICAL PRACTICES Document No. GP 43-52 Applicability Group Date 29 June 2006
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29 June 2006 GP 43-52 Guidance on Practice for Inspection and Integrity Assessment of Pipeline Systems Page 2 of 30 Foreword This is the first issue of Engineering Technical Practice (ETP) BP GP 43-52. This Guidance on Practice (GP) is newly created and is not based on heritage documents from the merged BP companies.
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29 June 2006 GP 43-52 Guidance on Practice for Inspection and Integrity Assessment of Pipeline Systems Page 3 of 30 Table of Contents Page Foreword . ....................................................................................................................................... 2 Introduction. .................................................................................................................................... 5 1. Scope . ................................................................................................................................... 6 2. Normative references. ............................................................................................................ 6 3. Terms and definitions. ............................................................................................................ 7 4. Abbreviations. ........................................................................................................................ 7 5. Inspection overview . .............................................................................................................. 7 5.1. General. ...................................................................................................................... 7 5.2. Inspection plan. ........................................................................................................... 8 5.3. Identification of threats. ............................................................................................. 11 5.4. Critical feature sizing. ................................................................................................ 12 5.5. Inspection frequency. ................................................................................................ 12 6. Selection of inspection methods. .......................................................................................... 13 7. Structural reliability analysis (SRA) . ..................................................................................... 14 8. Assessment of reported features . ........................................................................................ 15 8.1. PDAM . ...................................................................................................................... 15 8.2. Use of ILI data . ......................................................................................................... 17 9. Operators’ response to discovering features. ....................................................................... 18
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