库车地区储层岩电性质研究  

Rock Electrical Parameters Characteristics in Kuche Area

作　　者：韩闯[1] 范姗姗[2] 陈伟中[1] 章成广[2] 

机构地区：[1]中石油塔里木油田分公司勘探开发研究院,新疆库尔勒841000 [2]油气资源与勘探技术教育部重点实验室(长江大学),湖北荆州434023

出　　处：《工程地球物理学报》2013年第2期210-215,共6页Chinese Journal of Engineering Geophysics

基　　金：国家"十二五"重大专项(编号:2011ZX05020-008-004)资助

摘　　要：复杂孔隙结构砂岩具有低孔低渗、微孔微裂隙发育、非均质性强等特点,其岩电参数特征在许多方面与常规储层存在显著差异。以塔里木盆地大北克深地区白垩系巴什基奇克组低渗透砂岩储层岩电实验资料为依据,通过分析对比高温高压与常温常压下岩电参数,研究了胶结指数m和饱和度指数n的主要影响因素及其相互关系,实现了利用测井资料连续计算m值,进而计算含油气饱和度,提高了阿尔奇饱和度方程的适应性和饱和度评价精度。The tight clastic reservoirs which had the characters of low-porosity,low permeability,complex pore structure,micro porous fractured,and strong heterogeneity were greatly grown in Kuche Region,Tarim.And rock electrical parameters characterized in many ways,with significant differences in the presence of conventional reservoirs.On the basis of experimental data,analysis and comparison of the electrical parameters of high temperature and pressure,ambient temperature and pressure rock,the main geological factors of mexponent and n exponent（the exponents of Archie formula） were analyzed qualitatively.The values of m and n are continuously calculated by using logging data,and oil and gas saturation is consequently calculated.The application shows that this method is used for improving the adaptability of Archie formula and precision of saturation evaluation.

关 键 词：低渗透砂岩 孔隙结构 岩电参数 饱和度 

分 类 号：P631.8[天文地球—地质矿产勘探]