双孔隙介质砂岩储层测井响应特征及其油气意义  

Characteristics of Dual Pore Medium Sandstone Reservoir and Its Significance

作　　者：张小莉[1] 冯乔[2] 王玉生[3] 

机构地区：[1]西北大学大陆动力学国家重点实验室/地质学系,陕西西安710069 [2]山东科技大学,山东青岛266510 [3]中国地质大学能源系,北京100083

出　　处：《测井技术》2006年第4期341-343,共3页Well Logging Technology

基　　金：国家自然科学基金40474045(联合PP波和PS波各向异性弹性参数分布反演);西北大学基金UJ0387(双孔隙介质储层测井响应特征及油气识别);河南油田分公司资助

摘　　要：双孔隙介质砂岩储层孔隙结构复杂,其地层因素和孔隙度关系、电阻增大率和含水饱和度实验关系不符合典型的阿尔奇公式特征。测井响应特征中气、油、水层差异小。双孔隙介质储层具有发育的微孔隙网络和较大孔隙网络,微孔隙网络和大孔隙网络中具有2种性质的“双种水”特征,即束缚水、自由水和渗入水的混合液。相关分析认为,控制双孔隙介质储层特征的主要因素为沉积微相、成岩作用、地层水系统和流体动力特征,双孔隙介质砂岩储层具有良好的含油气性。Dual pore medium sandstone reservoir＇s poretexture is complexity. Relationship between stratum factors and porosity, relationship between resistivity index and water-bearing saturation are not in agreement with the Archie＇s equation. The well log responses to oil and gas reservoirs are just like the water reservoirs. Formation water in pore media has the typical characteristic, that is, irreducible water, mixed fluid of free water and seepage water. Because the dual pore sandtone reservoir has developed micro-pore network and bigger pore network, there exist two kinds of water in the two networks. Correlation analysis proves that the key factors controlling the dual pore medium reservoir are sedimentary microfacies, diageneses, formation water system and hydrodynamic force. Dual pore medium sandstone reservoir has good oil bearing characteristics.

关 键 词：测井响应 双孔隙介质 砂岩储层 沉积微相 黏土矿物 

分 类 号：P618.130.21[天文地球—矿床学] P631.811[天文地球—地质学]