井间时移地震属性在水驱前缘监测中的应用研究  

Researches on the application of cross-well time-lapse seismic attribution analysis technique in monitoring waterflooding front

作　　者：孙渊[1] 黄琴[1] 温柔[1] 李小伟[1] 秦民君 刘东明 

机构地区：[1]长安大学地质工程与测绘学院 [2]中国石油集团测井有限公司生产测井中心

出　　处：《石油仪器》2013年第2期39-42,9,共4页Petroleum Instruments

基　　金：十二五国家科技重大专项子课题"海上斜井井间地震资料成像处理技术及应用研究"(2011ZX05024-001-03)

摘　　要：在开发地震中,井间地震时移属性是由油田开发工程(如注水等)前后井间地震资料所提取的差异属性,它主要包括了波场振幅差异、频率差异、吸收衰减差异以及速度差异等波场运动学和动力学差异信息。分析认为,水驱过程中储层的物性及含流体性质均会发生一定的变化,并将影响到地震波场的运动学和动力学参数的变化,因此,分析研究水驱前后地震波场差异属性的变化规律和特征,可为分析预测水驱前缘提供一种较有效的方法。文章结合实际资料,通过井间地震时移属性分析,包括振幅、频率和层析反演速度等时移属性,探讨了时移属性异常与水驱前缘的相对关系,进一步验证了方法技术的可行性。In development seismic,time-lapse seismic attribution is seismic attribution differences,which are extracted by cross-hole seismic data before and after the oil field development engineering.It mainly includes different attributions in wave field kinematics and dynamics,such as wave field amplitude differences,frequency diversities,absorption attenuation differences,velocity differences and so on.It suggests that reservoir physical property and fluid properties will change in the process of water injection,which will affect the changes of wave field kinematics and dynamics.An effective method is developed for monitoring waterflooding front by analyzing the seismic wave attribution differences before and after water injection.Based on actual data analysis,including attributions differences of amplitude,frequency,and tomographic inversion velocity,the feasibility of this method is proved.

关 键 词：开发地震 时移地震属性 属性异常 水驱前沿 

分 类 号：P631.4[天文地球—地质矿产勘探]