模糊数学在气井压裂酸化选井选层因素分析中的应用  

APPLICATION OF FUZZY MATHEMATICS FOR FACTORS ANALYSIS OF WELLS AND LAYERS CHOICE IN FRACTURING AND ACIDIZING GAS WELLS

作　　者：杨小松[1] 孙良田[1] 孙雷[1] 夏茂素[1] 刘永兵[1] 张国强[1] 

机构地区：[1]西南石油学院

出　　处：《钻采工艺》2005年第4期39-43,共5页Drilling & Production Technology

摘　　要：综合运用模糊数学的方法对选井选层进行了因素分析,总结了其相关的经验。即先通过求解模糊综合评判的逆问题,得到各因素对压裂酸化选井选层影响的重要程度;再用模糊聚类的方法将评价因素按重要性分成五类,形成对评价因素重要性等级的经验性认识;最后用变权评判方法分析了不同重要性等级的一个因素缺失时,选井选层评判结果和现场实际的贴近程度,发现越重要的因素缺少,评判结果和实际的贴近程度越差。实例分析表明,该方法用于选井选层的因素分析、总结评价经验是正确可行的,因而具有较好的应用推广价值。The right experience of the choice of wells and layers (CWAL) is important for directing field CW-AL. The fuzzy mathematic is synthetically used for factors analysis of CWAL and this paper summarizes the experience. Firstly, based on solving the converse of fuzzy integrated evaluation, the optimum weight of every factor for wells and layers choice is aware; secondly, according to importance of every evaluation factors, fuzzy clustering is applied to class evaluation factors as five sorts and the experience of different importance rank is summarized; thirdly, the variable weights evaluation method is applied to achieve the degree according with the field practice (DCFP) when one factor is absent, it is discovered that more important factor is absent, DCFP is worse. The field example analysis shows that the method is correct for factors analysis and summarizing evaluation experience of CWAL. So the method is worthy of application and diffusion.

关 键 词：气井 压裂酸化 选井选层 综合评判 模糊聚类 

分 类 号：TE377[石油与天然气工程—油气田开发工程]