摘要
稳定的反Q滤波被引入到叠前和VSP记录的衰减补偿中得到了较好的效果,但是前人给出的算法比较复杂。基于地下介质的水平层状假设,根据叠前地震记录和VSP记录观测系统的特点,给出了叠前地震记录和VSP记录(零偏和非零偏)反Q滤波的统一算法和公式,实现了对叠前地震记录和VSP记录的高分辨率处理。模型试算和实际地震资料的应用结果表明,本文方法可显著提高叠后、叠前及VSP地震记录的分辨率。
Introducing stable inverse Q filtering in-to the attenuation compensation for pre-stack and VSP seismic records is quite good in effects, but the existing algorithms are relatively complex. Based on the assumption of horizontally-layered media in subsurface, a unified algorithm of stable inverse Q filtering and its formulae were developed for pre-stack and VSP （zero-offset and offset） re- cords, by considering the features of pre-stack and VSP observation systems, and it was achieved to conduct high-resolution processing of pre-stack and VSP data. The model calculations and the applica-tion results of theoretical seismograms and actual seismic data have shown that this method can sig-nificantly improve the resolution of post-stack, pre-stack and VSP seismograms.
出处
《中国海上油气》
CAS
CSCD
北大核心
2014年第4期29-33,共5页
China Offshore Oil and Gas
基金
"十二五"国家科技重大专项"大型油气田及煤层气开发"课题"海上开发地震关键技术及应用研究(编号:2011ZX05024-001)"部分研究成果
关键词
稳定的反Q滤波
统一算法
模型试算
高分辨率处理
stable inverse Q filtering
unified algo-rithm
model calculatiom high-resolution processing
