Ocean Engineering Equipment and Technology ›› 2023, Vol. 10 ›› Issue (4): 140-.

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 The Application of RBI Integrity Management to Deepwater Oil and Gas Exploitation

LU Jin1, ZHU Liyun2, CHEN Miaomou3, ZHANG Lin4   

  1. 1. CNOOC Safety & Technology Services Co., Ltd.， Zhanjiang 524057， Guangdong， China;
    2. Research Institute of Tsinghua University in Shenzhen， Tsinghua Shenzhen International 
    Graduate School， Shenzhen 518071， Guangdong， China;
    3. China Offshore Oil Engineering Co.， Ltd， Shenzhen 518071， Guangdong， China;
    4. CNOOC safety and Health Technology Co.， Ltd， Zhanjiang 524057， Guangdong， China
  • Online:2024-01-06 Published:2024-01-09

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Abstract: Compared to traditional timebased and conditionbased inspection methods， Riskbased Inspection (RBI), recently， is a new integrity management inspection technique which has been rapidly developed and applied to large offshore facilities. RBI is an advanced method for developing an optimum inspection plan and strategy which has coupled with techniques of database management， material damage and deterioration mechanism analysis， structural strength FEA， fracture mechanics for crack assessment， risk analysis and ranking， digital computer management system， etc. The RBI approach can guarantee that structures or equipment with higher risk could warrant more focused inspection than those with lower risk， which can effectively reduce inspection cost. This article will systematically discuss how to apply RBI technique for integrity management of large offshore facilities， while focusing on the application of RBI to the hull， mooring and riser systems of large deepwater offshore installations. Besides， a detailed case study on how to perform quantitative risk analysis on SN curve based offshore structures fatigue analysis.

Key words: risk-based inspection, oil and gas platform, riser, mooring, integrity management

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