砂岩储层模型孔隙度变化条件下地震响应特征模拟与研究  

The Seismic Response Simulation and Research on Sandy Reservoir Model with the Varying Porosity

作　　者：李键 

机构地区：[1]中海石油有限公司上海分公司,上海200030

出　　处：《工程地球物理学报》2014年第4期483-486,共4页Chinese Journal of Engineering Geophysics

摘　　要：东海油气田主要为河流-三角洲沉积体系,储层岩性以砂岩为主。随着埋深增加,砂岩孔隙度由大变小,储层地震反射特征也相应发生变化。从Gassmann方程出发,建立砂岩储层模型,对不同孔隙度条件下的地震响应特征进行了模拟与分析,获得初步认识,这些结论有利于进一步开展东海油气勘探工作。The East China Sea oil and gas field are mainly River-Delta sedimentary systems,and the reservoir lithology is mainly sandy.With the depth deeper and the sandy porosity lower,the seismic reflection characteristics of the reservoir will also change accordingly.By applying the Gassmann Equation and building a sandy reservoir model,the simulation and research on the seismic response characteristics are done with the varying porosity,and some conclusions are acquired at last.Those conclusions are advantageous to explore the East China Sea oil and gas field further.

关 键 词：东海 沉积体系 砂岩孔隙度 GASSMANN方程 砂岩储层模型 地震响应 

分 类 号：P631.4[天文地球—地质矿产勘探] P631.4[天文地球—地质学]