多时窗旅行时分解剩余静校正方法

英文篇名：Residual static correction based on traveltime decomposition in multiple time windows
中文刊名：石油地球物理勘探
英文刊名：Oil Geophysical Prospecting
作者：潘树林 ; 高磊 ; 吴波 ; 尹成 ; 傅丽容
英文作者：Pan Shu-lin1 ; Gao Lei2 ; Wu Bo3 ; Yin Cheng1 and Fu Li-rong4.1.School of Resources and Environment Engineering ; Southwest Petroleum University ; Chengdu ; Sichuan 610500 ; Chinaa2.School of Computer Science(Software School) ; Southwest Petroleum University ; Chengdu ; Sichuan 610500 ; Chinaa3.Deyang Branch ; Southwest Exploration and Production Research Institute ; Sinopec ; Deyang ; Sichuan 618000 ; Chinaa4.Sichuan Geophysical Research Center ; CNPC Chuanqing Engineering Company Limited ; Chengdu ; Sichuan 618000 ; China
中文关键词：多时窗 ; 旅行时分解 ; 剩余正常时差 ; 地表一致性 ; 静校正
英文关键词：multiple time windows ; traveltime decomposition ; residual normal moveout ; surface-consistent ; static correction
出版日期：2011-06-15
机构：西南石油大学资源与环境学院;西南石油大学计算机科学学院;中国石化西南分公司勘探开发研究院;川庆钻探工程有限公司地球物理勘探公司研究中心;
年：2011
期：03
出版单位：石油地球物理勘探

摘要

在复杂地表区的资料处理中,求取准确的速度非常困难,速度误差带来的剩余正常时差不容忽视。为此本文将剩余正常时差转换为速度误差的函数,采用多时窗分别对旅行时进行分解,可以获取不同时窗内的炮点静校正量、检波点静校正量和速度误差值。在获得速度误差后,分别用到相对应的时窗数据中,完成剩余动校正,再将剩余静校正量用于此数据,完成多时窗旅行时分解剩余静校正处理。实际资料处理结果表明,该法是解决复杂区地震资料剩余静校正问题的有效方法。
In complex areas data processing,residual normal moveout cannot be ignored as residual normal moveout and residual statics impact seismic data imaging.In this work we propose a residual static correction approach based on traveltime decomposition in multiple time windows.First,we convert the residual normal moveout to the velocity error function.Then by decomposing the traveltime in multiple time windows we get statics on shot points and receiver points,as well as velocity errors.We apply velocity errors for residual normal moveout in the corresponding windows.Finally we apply residual static correction on shot points and receiver points.Real data examples show that this method is effective on residual static correction in complex areas.

引文

[1]Ronen S and Claerbout J.Residual statics esti mationby stack power maxi mization.Geophysics,1985,50(12):2759～2767
    [2]John B,DuBose Jr.Practical steps toward realizingthe potential of Monte Carlo automatic statics.Geo-physics,1993,58(3):399～407
    [3]李章明等.正交迭代静校正方法.石油地球物理勘探,1997,32(1):124～129Li Zhang-ming et al.Statctic correction using orthogo-nal iteration.OGP,1997,32(1):124～129
    [4]吴文熙,梁春燕.初至波表层模型层析反演静校正在吐哈盆地的应用.中国石油勘探,2007,12(3):48～51Wu Wen-xi and Liang Chun-yan.Tomographic inver-sion and static correction of first breakin surface modeland their application in Tuha Basin.China PetroleumExploration,2007,12(3):48～51
    [5]Mike Cox著,李培明等译.反射波地震勘探静校正技术.北京:石油工业出版社,2004
    [6]李辉峰,邹强等.非地表一致性静校正方法探讨.石油地球物理勘探,2005,40(增刊):128～133,137Li Hui-feng,Zou Qiang et al.Technology study ofnon-surface consistent static correction.OGP,2005,40(Suppl):128～133,137