合成地震记录制作在油气勘探中的应用

合成地震记录的制作是油气勘探的基础,它是连接地质、测井和地震资料的桥梁。从合成地震记录的基本原理出发,结合油气勘探过程中的具体研究实例,分析了VSP资料与合成地震记录时深关系的差异性、地震资料对合成记录的影响和子波的选择;最后,利用勘探实例着重用阐述合成地震记录在油气勘探中的应用,主要包括把握区域速度、明确储层地震响应特征、识别地震资料的多次波和剔除地震资料的地质"假象"。

Application of Synthetic Seismogram on Oil and Gas Exploration

Making the synthetic seismogram is the basis of oil and gas exploration,and it is the bridge connecting geology,well logging and seismic data.In this paper,based on basic principle of synthetic seismogram,combined with the specific case in oil and gas exploration,difference between time-depth relationship of VSP data and the synthetic seismogram,effects of seismic data on making synthetic seismogram and selection of wavelet were analyzed.Finally,the application of synthetic seismogram in oil and gas exploration was elaborated by cases,such as grasping the regional velocity,defining seismic response characteristics of reservoir,identifying the multiple wave in seismic data and eliminating geological" illusion" from seismic data.