阿南油田储层有效渗透率模糊设计研究

FUZZY DESIGN STUDY ON FORMATION PERMEABILITY FOR A-NAN OIL FIELD

根据华北二连阿南油田12口井的DST测试资料，应用模糊设计方法，研究了储层有效渗透率与电测渗透率、化层压力系数、电测孔隙度、含水率、上覆地层压力以及最小水平主应对间的关系。该方法考虑因素较为全面．并且在权重的确定上，巧妙地引用了灰色关联度法，克服了以往权全确定方法上的不足，使之更具量化标准。经验证，该方法与油藏数值模拟得出的有效渗透率结果基本吻合。

?Based on DST testing data for 12 wells in A - Nan oil field, fuzzy design method is used to study relationships between effective permeability and electric logging per meability, formation pressure coefficient, electric logging porosity, water-cut, overburden pressure and minimum main horizontal stress. The factors considered in this paper are more completely and a gray correlation method is introduced ingeniously to determine weight. It overcomes the shortcomings to determine weight in previous method and makes it more quantitatively. It is proved that the effective permeability achieved by this method keeps co incidence with the value derived from the method of reservoir numerical simulation matching.