油气勘探二次创业的油储地球物理方法研究回顾  

Review on geophysical methodology of oil reservoirs in the second round of hydrocarbon exploration

作　　者：刘洪[1] 李幼铭[1] 

机构地区：[1]中国科学院地质与地球物理研究所,北京100029

出　　处：《石油与天然气地质》2008年第5期648-653,共6页Oil & Gas Geology

基　　金：国家重点基础研究发展规划(973)项目(2007CB209603);国家自然科学基金项目(40674072);中国科学院知识创新工程重要方向项目(KZCX3-SW-147)

摘　　要：经过油储地球物理和油气勘探二次创业前后18年的研究,基于保结构方法和拟微分算子技术,提出了算子运算转化为函数化运算、乘法运算转化为代数加法运算的波场有效表示方法,促进了快速有效的地震波场计算和资料处理方法的产出。高精度速度-深度建模、非对称走时时间偏移、叠前谱分解预测多次波、弹性参数反演、反假频重建等方法技术,正在实际资料试验研究中不断完善。The eighteen years of research on oil reservoir geophysics during the second round of hydrocarbon exploration provided a sound basis for the proposition of an effective expression of wave field based on structure preserved algorithm and pseudo-differential operator technique. The expression transfers operator calculation into function calculation and multiplication into summation and promotes the development of rapid and effective methods of seismic wave field calculation and data processing. Various techniques such as high-precision depthvelocity estimation, asymmetric travel-time migration, multiple prediction through pre-stack spectrum decomposition, elastic inversion, and dealias reconstruction, are continuously sharpening in the process of practical applications with real data.

关 键 词：弹性参数反演 反假频重建 高精度速度-深度建模 非对称走时时间偏移 叠前谱分解预测多次波 地球物理方法 油气勘探 

分 类 号：P631[天文地球—地质矿产勘探]