水驱油田时移地震剩余油表征方法及其应用研究

The Time-lapse Seismic Remaining Oil Characterization Technique and Its Application in Water Drive Oilfields

水驱油田时移地震剩余油表征方法是将时移地震、测井、综合地质和油田开发动态等信息相结合的综合研究方法,该方法以时移地震综合研究为基础,描述油藏水驱特征和剩余油分布,进而服务油藏管理,提高油藏采收率。通过水驱油田的研究与实践,形成了基于油藏开发单元描述、时移匹配反演处理、油田开发动态信息解释、水驱特征综合分析及剩余油分布表征与预测的一体化研究流程。该方法在西非某水驱深水扇油田得到了成功应用。

The time-lapse seismic remaining oil characterization method was an integrated method based on time-shift seismic data,well logging data and comprehensive geologic data and the dynamic information of oilfield development,based on the comprehensive study of time-shift seismic data,the method was used to describe the water drive features of the reservoirs and remaining oil distribution for serving the reservoir management and enhancing oil recovery.Via the study and practices in water drive oilfields,an integrated flow is proposed,including description of reservoir development units,time-lapse seismic matching inversion,dynamic information interpretation of oilfield development,analysis of water drive features,and remaining oil characterization and prediction.The application of the integrated flow in a water drive deepwater fan oilfield in West Africa verifies the applicability of the remaining oil characterization.