碳酸盐岩溶洞型储层VSP数值模拟及其波场特征  

VSP numerical modeling and wavefield characteristics analysis of carbonate rock cavity reservoir

作　　者：赵茂强[1] 孙卫国[1] 

机构地区：[1]胜利油田分公司物探研究院,山东东营257022

出　　处：《油气地球物理》2013年第3期1-4,共4页Petroleum Geophysics

摘　　要：碳酸盐岩储层中,溶洞型储层含油气性与储集性能极为优越,但其非均质性严重,用常规地面地震分辨率无法满足精细勘探的要求。VSP技术作为一项高精度地球物理技术,可以更精细地刻画井周复杂构造、储层和流体的空间展布。用交错网格高阶差分数值模拟技术对碳酸盐岩溶洞型介质模型进行VSP数值模拟,有助于分析给定地质模型的构造及岩性的地震响应,更合理地设计野外观测系统、分析波场和确定最佳处理解释参数、流程。The bearing property and reservoir property of cavity reservoir is superior in carbonate rock reservoir, but the reservoir is very heterogenous, so the conventional seismic resolution is unable to meet the requirements of high precision seismic exploration. As a high resolution geophysical techniques, the VSP can better characterize the spatial distributions of the complex structure, reservoir and fluid around well. It is helpful to analyze the seismic re- sponses of the structure and lithologic of the given geological model, design the more reasonable field layout, ana- lyze precisely wavefield and select optimal processing interpretation parameters that the VSP forward modeling of the carbonate rock cavity reservoir is done by the staggered-grid high-order finite-difference numerical simulation.

关 键 词：溶洞型储层 VSP数值模拟 波场特征分析 

分 类 号：TE319[石油与天然气工程—油气田开发工程]