用灰色关联法计算储层孔隙度  

A GREY RELATIONSHIP METHOD FOR CALCULATING RESERVOIR POROSITY

作　　者：吴国平[1] 徐忠祥[2] 徐红燕[3] 

机构地区：[1]中国地质大学信息工程学院,武汉430074 [2]中国地质大学应用地球物理系,武汉430074 [3]中国地质大学图书馆,北京100083

出　　处：《石油大学学报（自然科学版）》2000年第1期107-108,共2页Journal of the University of Petroleum,China(Edition of Natural Science)

基　　金：国家自然科学基金资助!(49874027)

摘　　要：根据灰色滤波的基本原理 ,设计出一个服从声波时差求取孔隙度的灰色滤波系统。该系统能滤除由探测系统、井通道以及局部环境等因素引起的干扰 ,建立起声波时差与储层孔隙度之间的映射关系计算式 ,由声波时差信号直接计算储层的孔隙度。实际应用表明 ,用灰色关联计算法求得的孔隙度值更接近实际值 。Based on the elementary theory of grey filter, a grey filter system for computing porosity by using sonic moveout is designed. This system can filter out the noise resulting from such factors as detective system, borehole and local environment. An imaginary relationship between sonic moveout and stratum porosity can be developed with this system. As it is applied, the porosity value computed by the grey relationship method is more approximate to the actual value, which has improved the resolution of thin oil reservoir.

关 键 词：储集层 灰色关联度 孔隙度 计算 声波测井 

分 类 号：P631.814[天文地球—地质矿产勘探] TE311[天文地球—地质学]