THE APPLICATION OF FUZZY COMPREHENSIVE EVALUATION IN DEEPWATER GAS WELL TESTING STRING RISK ASSESSMENT
Offshore Testing is a world-wide difficult problem with high danger and high risk. Many technical problems in the field of national offshore oil production are still pending. The safety of testing string is affected by multiple complex factors, and it is a complicated nonlinear problem with marked deformation and indeterminacy. The traditional risk assessment methods no longer meet the need for risk assessment of testing string. This paper adopts fuzzy comprehensive evaluation, which is based on the AHP (analytic hierarchy process) to assess the security of strings of deepwater gas well. First of all, it makes model, analyses the factors of the risk, divides the hierarchy and adopts AHP (analytic hierarchy process) to determine the weight of each factor. Secondly it seeks the experts reviews to establish the aggregation of comments, researches the effect of each assessment factors, makes fuzzy assessment of each factor, and makes fuzzy information of many describing different aspects of the object which has different dimensions quantification. Lastly, it makes fuzzy comprehensive evaluation in order to make sure the risk assessment level of testing string andachie-ve quantitative analysis of the risk factors that effect testing string and assess the safety of testing string scientifically.
estingstring Risk assessment Fuzzy comprehensive evaluatian AHP (Analytic Hierarchy Process)
Li Ming-zhao Fan Jian-chun
College of Mechanical and Transportation Engineering,China University of Petroleum(Beijing)
国际会议
The 3rd World Conference on Safety of Oil and Gas Industry(第三届世界石油天然气工业安全会议 WCOGI 2010)
北京
英文
197-202
2010-09-27(万方平台首次上网日期,不代表论文的发表时间)