The purpose of this general specification is to define methodology for performing technological risk assessment of onshore and offshore oil and gas upstream facilities.
The objectives of this specification are to enable setting scope of work for a technological risk assessment study, to provide essential information performing scenario based risk assessment and QRA studies and to interpret results of risk assessment studies.
In accordance with COMPANY Technological Risk Management process, this specification provides guidance for performing risk assessment of the following phases:
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- Front End Engineering Phase
Technological Risk Assessment Methodolog
- Sensitivity analysis ............................................................ 59
- Risk evaluation .......................................................... 60
- ALARP demonstration ........................................................... 64
- Major risk register ........................ 7
- Audit and Peer reviews ..........................................
Appendix 1 Isolatable Sections and Hazardous Inventory ...................... 82
Appendix 2 HAZID Checklist .......................................................................... 84
Appendix 3 HAZID Worksheet ....................................................................... 90
Appendix 4 Critical Events Register ........................................................... 92
Appendix 5 Severity and Frequency Categories. ............................ 94
Appendix 6 Hazard Intensity Thresholds ........................................... 97
Appendix 7 Assumptions Register ......................................................... 101
Appendix 8 Risk Management Sheets .................................................... 104 | 