Risk analysis for the dismantling and removal of an offshore platform
Conference
·
OSTI ID:455502
- Four Elements Ltd., London (United Kingdom)
- Heeremac, Leiden (Netherlands)
This paper describes the development and application of a risk analysis methodology for platform dismantling and removal operations. Initiating events leading to possibly significant failure modes are identified and quantified using, for the most part, fault trees. Much of the effort has gone into identifying and quantifying human error frequencies, including those for recovery failure, based on detailed scrutiny of the operations and established human factors methodologies. Outcome modelling for the initiating events uses an event tree approach, and the detail in the consequence modelling, e.g., for modelling of structural damage, is commensurate with the expected risk as identified in a first pass analysis. Risk reduction measures are targeted at dominant risk contributors, whose principal determinants can be identified from the fault trees. The application of the method to the analysis and mitigation of risks during certain dismantling and removal phases of the platform is described.
- OSTI ID:
- 455502
- Report Number(s):
- CONF-9606279--; ISBN 0-7918-1491-2
- Country of Publication:
- United States
- Language:
- English
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