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中文摘要：
由于油田开发井网设计牵涉到很多影响因素，对井网的优化需要综合考虑各项指标。为减小单一指标决策的片面性，将层次分析法（AHP）引入到井网优化中。针对水平井五点法井网，从井排距比、穿透比和水平井水平段层位等三方面进行设计，运用正交试验方法组合出九种方案。利用油藏数值模拟软件计算得到采收率、含水率等相应指标，从而采用模糊数学中的AHP综合考虑各项指标，通过求取各方案的权值，将定性关系定量化，客观合理地得到指标综合排序，选择出最优方案，优化水平井五点井网，为实际生产提供有利依据。
英文摘要：
Since the well pattern design in oilfield development is affected by many factors, so the various indexes are required to comprehensively take into account in its optimization. In order to minimize the risk of making decision by single index, AHP （ analytical hierarchy process） is introduced into the well pattern optimization in this paper. For five-spot horizontal well pattern, it is designed in three aspects, including the ratio of well spacing and row spacing, penetration ratio and the location of horizontal interval, and finally nine programs are combined based on orthogonal test. The corresponding indexes, including recovery factor, water cut etc. , are calculated by numerical reservoir simulating software and moreover with the help of AHP in fuzzy mathematics, each index is taken into integrative consideration. Finally, the qualitative relationship is quantifies through calculating the weight value of each program, and then based on the above achievements, the practical and reasonable combined order has been made, the optimal program has been chosen, five-spot horizontal well pattern has been optimized and the evidences for the actual production have been provided.
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