Risk factors analysis method of marine riser failure and its application

doi:10.16265/j.cnki.issn 1003-3033.2021.11.007

Abstract

Abstract: In order to assess safety risks of marine risers more accurately and scientifically, an improved FANP was proposed. Firstly, basic theories of fuzzy theory and traditional analytic network process(ANP) were introduced. Then, traditional FANP method was improved and risk factor analysis process of marine riser failure was established. Finally, taking offshore riser of a gas field in the South China Sea as an example, risk factors in its operation process were identified, and a network diagram was constructed. Before expert opinions and improved FANP were used to evaluate risk factors and determine their relative importance. The results show that misoperation in maintenance, operation, construction, and manufacturing as well as improper supervision and other factors have higher influence on marine riser safety.

Key words: marine riser, risk factor, fuzzy analytic network process (FANP), triangular fuzzy number, consistency check

CLC Number:

X913.4

YU Jianxing, FAN Haizhao, CHEN Haicheng, WU Shibo, HAN Fang, LIU Shaoqing. Risk factors analysis method of marine riser failure and its application[J]. China Safety Science Journal, 2021, 31(11): 47-53.

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