摘要：In this paper, we extend previous studies of time-lapse seismic analysis via incorporating lab measurements for a realistic physical model to investigate the effects of reservoir fluid substitution on time-lapse seismic assessments both inside and outside the reservoir. A three-layered physical model is formed of laterally heterogeneous reservoirs having a large thickness interval that may produce significant elastic wave scattering phenomenon and hence attenuation, and filled with oil, gas and water. The modelled 4D seismic responses with high repeatability and good quality for time-lapse surveys and strengthened time-lapse seismic data processing, lead to improved understanding of reservoir fluid property evolutions. Specifically, time-lapse differences of 3D surveys in reflection amplitude signatures, travel-time and frequency-dependent characteristics are strong between the oil-water substitution surveys having weak contrast of elastic properties and significant between the oil-gas substitution surveys having large perturbation of elastic properties. Seismic surveys regardless of oilwater or oil-gas substitution produce significant 4D seismic amplitude anomalies complicated by reservoirs with strong heterogeneities. The results indicate that the time-lapse seismic technique can be used as a valuable reservoir management tool for accurate identification, both qualitatively and semi-quantitatively, of fluid variations of oil production by water or gas injection in heterogeneous reservoirs.

发表日期：2017-01-01

期刊分区（SCI为中科院分区）：无

收录情况：EI（工程索引）,国际学术会议论文集

发表期刊名称：79th EAGE Conference and Exhibition 2017

通讯作者：Zhou, D.,马敏

第一作者：贺艳晓,陈双全,王仕祥

论文类型：会议论文

论文概要：贺艳晓,Zhou, D.,陈双全,马敏,王仕祥，4D seismic responses of heterogeneous reservoirs using lab physical modelling to understand uncertainties in seismic attributes，79th EAGE Conference and Exhibition 2017，2017，

论文题目：4D seismic responses of heterogeneous reservoirs using lab physical modelling to understand uncertainties in seismic attributes