摘要
论述了运用非线性映射方法计算非均质综合指数,并定量表征了胜坨油田坨21断块沙二段储层非均质特征。结果表明,非均质综合指数的计算方法克服了单因素非均质参数之间的相互影响,解决了各种参数对储层非均质性的贡献及其权重较难确定的难题;研究区目的层各小层及韵律层非均质综合指数差异中等,层间非均质性呈较强一中等,平面非均质性则以中等一较强为主,而层内非均质性主要呈中等程度。研究成果在研究区应用产生了较好的经济效益。
<abstract>nlinear mapping method was applied to calculating synthetic heterogeneous indexes and quantitatively characterizing heterogeneous character of the second member of the Shahejie formation, Tuo21 fault block of Shengtuo oilfield . The results showed that the above algorithm could overcome the influences among single-factor heterogeneous parameters and resolve the difficulties on defining the contribution of various parame ters to the reservoir heterogeneity and their weight value. The synthetic heterogeneous indexes had medium difference in each substratum of the target and rhythmic unit in researched area. The heterogeneity of interlayer is stronger-middle, plane heterogeneity is middle-stronger mainly, and heterogeneity in layer is middle. The research results have brought great economic benefits.
出处
《油气地质与采收率》
CAS
CSCD
2004年第5期10-13,共4页
Petroleum Geology and Recovery Efficiency
基金
基金项目:中国石油化工集团公司"九五"十条龙攻关项目(KG95028)
