动态反褶积方法研究  

Research of nonstationary deconvolution method

作　　者：彭才[1] 朱仕军[2] 孙建库[1] 赵景美[2] 

机构地区：[1]四川石油管理局地球物理勘探公司 [2]西南石油大学

出　　处：《油气地球物理》2007年第3期9-13,共5页Petroleum Geophysics

基　　金：四川省重点学科建设项目(编号:SZD0414)基金资助

摘　　要：目前常用的反褶积方法有许多,但大都基于传统的褶积模型。传统褶积模型假设子波波形保持不变,这与子波在传播中振幅逐渐衰减的情况不符,因此需要建立能够描述实际子波传播的动态褶积模型。以动态褶积模型为理论基础的反褶积方法不需要对衰减地震道做吸收衰减补偿,可直接实现提高分辨率处理。文中对脉冲反褶积和动态反褶积结果进行了比较,理论模型分析与实例验证了动态反褶积方法的正确性。There are many methods of deconvolution at present, based on conventional convolution model. In conventional convolution model, supposing the wavelet not to be attenuated, so it doesn＇t accord with actuality that the amplitude attenuation gradually. Therefore, it＇ s necessary to establish a nonstationary convolution model which can describe the nonstationary wavelet. Based on the convolution model, nonstationary deconlution can improve the resolution of seismic data without compensatting amplitude of seismic trace. Comparing the results of spiking deconvolution and nonstationary deconvlution in the paper, the analysis of theoretical model and real data computation prove this method is right.

关 键 词：动态反褶积 动态子波 地震数据 时频分析 

分 类 号：P631.443[天文地球—地质矿产勘探]