层次分析法用于钻机的综合评价和优选

Comprehensive Evaluation and Optimum Selection of Drilling Rigs by Means of Analytical Hierarchy Process

应用层次分析法原理,建立了钻机结合评价的递阶层次结构——评价指标体系。在指标层确定了9个评价指标。根据专家咨询所提供的判断矩阵,采用综合群组判断的几何平均法求出了各层因素的权重,最后得到了9个评价指标的权系数。对待评的4类钻机应用加权综合评分法,可选出最合适的钻机。案例分析表明,这一新的系统分析方法,思路简单明了,实用性强,优选结果可信度高。

With the help of analytical hierarchy process, the paperestablishes a successive order structure as an evaluation in-dex system for drilling rigs. Nine evaluation indexes are de-termined. On the basis of the judgement matrix from expertcousultation. applying the geometric mean method fot co-mprehensive group judgement, the weightings of differentlevels and finally. the weighting coefficients of the nineevaluation indexes are obtained. Case studies show that thisnew method is very practical and qualified for high confi-dence level. For each of the four existent classes of dril-ling rigs, the most suitable one can be determined by usingthis method.