孔隙结构指数在鄂尔多斯中部气田气水识别中的应用  

Applications of porous structure exponent to recognizing gas and water in middle gas field of Ordos Basin, China

作　　者：李瑞[1] 向运川[2] 杨光惠[1] 曹延旭 

机构地区：[1]成都理工大学"油气藏地质及开发工程"国家重点实验室,成都610059 [2]中国地质调查局发展研究中心 [3]华北石油地质局测井站

出　　处：《成都理工大学学报（自然科学版）》2004年第6期689-693,共5页Journal of Chengdu University of Technology: Science & Technology Edition

基　　金：国家863计划(2001AA136020 1);国家973计划(G1999043215)资助项目

摘　　要：低孔裂缝性碳酸盐岩储集层,对水溶液体积增量的敏感性导致孔隙喉道导电复杂化,是非阿尔奇特性的主要原因。通过高温高压、常温常压岩 电实验研究分析,孔隙度与孔隙结构指数m值呈函数动态变化关系,不完全服从常数性m值关系式。建立岩 电可变m值含水饱和度方程。经对鄂尔多斯盆地中部气田70口井的处理应用,极大程度地改善低阻段的气、水层计算与识别能力,取得较好的应用效果。The main reason caused non-archer rock character is that the water volume increment sensitivity of lower matrix porosity and fracture carbonate rock reservoir results in the electrical path comlication of pore and throat. The research on the rock-electricity test results under high temperature and high pressure points out that the relation of porosity and porous structure exponent m is functional in dynamic, but incompletely constant type m value. The changing m value S_(w) equation is estalished by use of the rock-electricity tests, and a better effect is obtained in calculating and recognizing the gas and water layers in low resistivity segments of more 70 wells in the middle gas field of Ordos Basin.

关 键 词：测井 裂缝 碳酸盐岩 岩电实验 孔隙结构指数 饱和度 鄂尔多斯盆地 

分 类 号：P631.811[天文地球—地质矿产勘探]