四维地震资料处理中的互均衡技术及应用

英文篇名：CROSS-EQUILIBRATION TECHNIQUE AND APPLICATION IN 4D SEISMIC DATA PROCESSING
中文刊名：新疆地质
英文刊名：Xinjiang Geology
作者：苏云 ; 余世新 ; 黄倩
英文作者：SU Yun1 ; YU Shi-xin2 ; HUANG Qian2(1.College of information Engineering ; Chengdu University of Technology ; Shengdu ; Sichuan ; 610059 ; China)2.Geophysical Exploration Academe of JiangHan oilfield ; QianJiang ; Hubei ; 433100 ; China)
中文关键词：四维地震 ; 互均衡 ; 期望差异 ; 非期望差异
英文关键词：4D seismic ; Cross-equilibration ; Anticipant difference ; Non-anticipant difference
出版日期：2009-06-15
机构：成都理工大学信息工程学院;江汉油田物探研究院;
年：2009
期：02
出版单位：新疆地质

摘要

近年来四维地震勘探技术迅速发展,由于各种因素,造成两次重复观测结果存在非一致性,主要表现在时间信号延迟、信号能量差异、信号带宽差异及相位差异4个方面.为有效利用四维地震勘探,需保护由流体及油藏引起的地震响应差异,消除非油藏引起的地震响应差异,应对监测数据进行互均衡校正.本文介绍了互均衡校正技术的理论基础,运用互均衡技术对某地四维地震资料进行了校正处理,较好地消除了非期望差异,验证了该方法的正确性和有效性.
4D seismic exploration technology has been developed rapidly in recent years.However,two measurement data observed repeatedly are of non-uniformity because of various factors.These differences exist mainly in four areas: Signal time-delay、energy difference of signal、bandwidth difference of signal、phase difference of signal.In order to effectively protect the differences resulted from fluid and oil-gas reservoir and remove the differences resulted from others factors,we need calibrate the monitor data.This article describes the theory of cross-equilibration technique,and applies it in the 4D seismic data.The result shows that the non-anticipate differences had been removed well,which further confirms the correctness and effectiveness of this technique.

引文

[1]陈小宏,赵伟,马继涛,等.时移地震非线性反演压力与饱和度变化研究[J].地球物理学进展.2006,21(3):830-836.
    [2]陈小宏,牟永光.四维地震油藏监测及其应用[J].石油地球物理勘探,1998,33(6):707-715.
    [3]Lumley D E.Time-lapse seismic is reservoir monitoring[J].Geophy-sics,2001,66(1):50-53.
    [4]陈小宏.四维地震数据的归一化方法及实例处理[J].石油学报,1999,20(3):22-26.
    [5]李蓉,胡天跃.时移地震资料处理中的互均衡技术[J].石油地球物理勘探,2004,39(4):424-427.