高北斜坡中深层岩性油藏岩石电阻率实验研究  

Experimental Study on Rock Resistivity of Medium Deep Lithologic Reservoir in Gaobei Slope

作　　者：杨锐祥 王向公[1,2] 冯俊贵 崔式涛 刘欣欣 

机构地区：[1]油气资源与勘探技术教育部重点实验室(长江大学),湖北武汉430100 [2]长江大学地球物理与石油资源学院,湖北武汉430100 [3]中国石油集团测井有限公司油气评价中心,陕西西安710077 [4]中国石油集团测井有限公司华北事业部,河北任丘062552

出　　处：《西安石油大学学报（自然科学版）》2018年第1期26-32,38,共8页Journal of Xi’an Shiyou University（Natural Science Edition）

基　　金：国家重大专项(2016ZX05056)

摘　　要：冀东油田南堡凹陷高北斜坡中深层岩性油藏电阻率测井响应复杂,给含油性评价带来了很大挑战。为了弄清岩石电阻率的变化规律,选取研究区不同类型的典型岩心,模拟不同地层水矿化度条件下的油驱水过程,进行配套的岩石电阻率实验测量。结果表明:胶结指数随地层水矿化度、孔隙度和储层品质因子的增大而增大,随阳离子交换量的增大而减小;饱和度指数随地层水矿化度和阳离子交换量的增大而增大,随孔隙度和储层品质因子的增大而减小。根据实验结果建立了动态岩电参数含水饱和度模型,依据该模型计算的结果与验证实验结果吻合很好,表明模型的可靠性高。In order to understand the variation of the rock resistivity of the middle deep lithologic reservoirs in Gaobei slope of Nanbu sag,Jindong Oilfield,selecting typical cores of different types as research objects,their rock resistivity was measured by simulating the displacement of water with oil under different formation water salinity. The experimental results show that the cementation index increases with the increase of formation water salinity,reservoir porosity and reservoir quality factor,and it decreases withthe increase of cation exchange capacity. The saturation index increases with the increase of formation water salinity and cation exchange capacity,and decreases with the increase of reservoir porosity and reservoir quality factor. A model for calculating the water saturation was established based on a large number of experimental data. The calculated results of the water saturation with the model are in good agreement with experimental results,which shows the model is of high reliability.

关 键 词：电阻率实验 胶结指数 饱和度指数 动态岩电参数模型 

分 类 号：TE122[石油与天然气工程—油气勘探]