煤层气地震勘探中的静校正方法

英文篇名：Some static correction methods in coalbed methane seismic
中文刊名：石油地球物理勘探
英文刊名：Oil Geophysical Prospecting
作者：刘占族 ; 曹孟起 ; 孙军晓 ; 陈院生 ; 晏丰
英文作者：Liu Zhanzu1 ; 2 ; Cao Mengqi3 ; Sun Junxiao2 ; Chen Yuansheng2 and Yan Feng2.1.China University of Geosciences(Beijing) ; Beijing 100083 ; China2.Huabei Branch ; Geophysical Research Institute ; BGP Inc. ; CNPC ; Renqiu ; Hebei 062550 ; China3.Geophysical Research Institute ; BGP Inc. ; CNPC ; Zhuozhou ; Hebei 072751 ; China
中文关键词：地震数据处理 ; 煤层气 ; 折射波静校正 ; 初至波剩余静校正 ; 反射波剩余静校正 ; 复杂地表区
英文关键词：seismic data processing ; coalbed methane(CBM) ; refraction static correction ; first break residual static correction ; reflected residual static correction ; complex surface area
出版日期：2012-06-15
机构：中国地质大学(北京);东方地球物理公司研究院资料处理中心华北分院;东方地球物理公司研究院;
年：2012
期：03
出版单位：石油地球物理勘探

摘要

静校正技术是煤层气地震数据处理的核心技术。基于沁水盆地煤层气地震资料的特点,本文简析了不同静校正方法的原理,通过对实际资料的深入分析和对静校正方法的反复研究与试用对比,探索得到一套综合利用折射波静校正、初至波剩余静校正和反射波剩余静校正等技术的有效方法,很好地解决了该区煤层气资料的静校正问题,为深化研究该区煤层的地质构造特征以及进行煤储层的裂缝预测和含气性检测奠定了良好基础。
The static issue is one of the core techniques in coalbed methane(CBM) seismic data processing.According to the characteristics of coalbed methane seismic data in Qinshui Basin,we simply analyze in this paper the principles of different static methods.Through the analysis and application of actual data,we develop an effective processing sequence including refraction static correction,first break residual static correction and reflected residual static correction to solve the coalbed methane static problem in this area.The processing sequence of coalbed methane seismic data processing laid a good foundation for the geological structure characteristics research,coal reservoir fracture prediction and gas bearing layer detection.

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