Unified Approach to Risk-Based Inspection Planning for Offshore Production Facilities

Authors

Michael H. Faber, Daniel Straub and Jean Goyet

Abstract

Based on new methodological developments in the area of risk based inspection planning (RBI) for structural components subject to fatigue degradation the present paper presents a unified approach to risk based inspection planning for offshore facilities comprising components and systems of both the structural and process type. Suggestions are given to the formulation of acceptance criteria on component level based on overall facility acceptance criteria in terms of risk to personnel, environmental risks and economical risks The methodology facilitates a generic modeling of fatigue and corrosion degradation for both structural and process type components. Furthermore, special considerations are given to the important aspect of updating of inspection plans when degradation has been observed. The different aspects of RBI for steel components subject to fatigue and corrosion degradation are illustrated on an example considering RBI for the components of a tri-pod well-head platform.

Published in/by

Journal of Offshore Mechanics and Arctic Engineering, Trans. ASME, 125(2), May 2003, pp. 126-131.

Proceedings of OMAE2001, 20th Offshore Mechanics and Arctic Engineering Conference, June 3-8, 2001, Rio de Janeiro, Brazil