水驱油田剩余油分布预测的岩石物理依据和方法

英文篇名：Rock physics for remaining oil distribution prediction in water flood field
中文刊名：岩性油气藏
英文刊名：Lithologic Reservoirs
作者：刘雯林
英文作者：LIU Wen-lin(Research Institute of Petroleum Exploration&Development ; Petro China ; Beijing 100083 ; China)
中文关键词：水驱油田 ; 剩余油预测 ; 岩石物理 ; 时间推移地震 ; 叠前反演
英文关键词：waterflood field ; remaining oil prediction ; rock physics ; time-lapse seismic ; pre-stack inversion
出版日期：2010-09-15
机构：中国石油勘探开发研究院;
年：2010
期：03
出版单位：岩性油气藏

摘要

将中国东部老油田长期水驱开采中引起的储层物性变化换算成速度变化时,发现这种速度变化明显大于只计算水置换油时所引起的速度变化。根据这一特征,可利用地震资料来预测剩余油的分布。应用时间推移地震求取水驱开采前后两次三维地震的振幅差异时,由于突出了流体的地震响应差异,比直接应用常规地震油气检测技术预测剩余油分布更为有效,而模型和实例也证明了该方法的可行性。最后,提出了一种利用时间推移地震进行叠前含油饱和度反演并预测剩余油分布的更为精确的方法。
The velocity contrast caused by the reservoir property variation in long period of waterflood recovery in the old fields of eastern China is obviously greater than that caused by oil displacement water,so seismic data can be used to predict the remaining oil distribution.Time lapse seismic is applied to obtain the 3D seismic amplitude difference before and after water flood recovery.Because of the seismic response difference of fluids,it is more effective than conventional hydrocarbon detection technology to identify the remaining oil distribution.The model and application show that practicability of time lapse seismic for predicting remaining oil distribution.Finally an approach is proposed that using time lapse seismicis to carry out pre-stack

引文

[1]Nur A.Seismic monitoring of thermal enhanced oil recovery processes[J].Expanded Abstracts of 54th Annual International SEG Meeting,1984,337-340.
    [2]Dunlop K N B,King G A,Breitenbach E A.Monitoring of oil/water fronts by direct measurement[R].SPE18271,1988.
    [3]刘宝和主编.中国石油勘探开发百科全书[M].北京:石油工业出版社,2008,开发卷:308-312.
    [4]甘利灯,姚逢昌,邹才能,等.水驱四维地震技术可行性研究及其盲区[J].勘探地球物理进展,2003,26(1):24-29.
    [5]石玉梅,刘雯林,胡润苗.我国东部油区水驱前沿地震监测和方法研究[J].石油地球物理勘探,2006,41(4):415-422.
    [6]胡英,刘宇,甘利灯,等.水驱四维地震技术——叠前互均化处理[J].勘探地球物理进展,2003,26(1):49-53.
    [7]甘利灯,姚逢昌,邹才能,等.水驱四维地震技术——叠后互均化处理[J].勘探地球物理进展,2003,26(1):54-60.