时移岩石物理图版在时移地震定量解释中的应用  

Application of Rock Physical Template in the Time-lapse Seismic Quantitative Interpretation

作　　者：胡宇霆[1] HU Yuting(China United Coalbed Methane Corporation Limited,Chaoyang,Beijing 100015,China)

机构地区：[1]中联煤层气有限责任公司,北京朝阳100015

出　　处：《西南石油大学学报（自然科学版）》2022年第6期21-28,共8页Journal of Southwest Petroleum University(Science & Technology Edition)

摘　　要：岩石物理解释图版通常应用于储层岩性及流体定量预测,取得了较好的应用效果;时移地震则常应用于油藏监测及剩余油气的定性或半定量的解释。随着油气田开发的深入,对剩余油气分布的认识精度需求也越来越高,基于此需求,探讨了一种利用时移地震信息对剩余油气进行定量解释的方法。通过构建油藏流体特征参数(如流体饱和度、压力等)的变化与时移地震敏感参数变化率的关系图版,将表征某个静态时间点的岩石物理解释图版换为一种随流体变化的动态物理解释图版,从而实现了对剩余油层厚度及分布的定量解释,降低了解释多解性。在S油田应用取得较好应用效果,剩余油厚度预测结果与实测结果吻合度高,有效指导了研究区生产井井位优化,降低了开发风险。Rock-physical interpretation chart is usually used in quantitative prediction of reservoir lithology and fluid,and has achieved good application effect.Time-lapse seismic is used in reservoir monitoring and qualitative or semi quantitative interpretation of residual oil and gas.With the development of oil or gas fields,more accurately interpretation of remaining oil or gas distribution is required.This paper discusses a method of quantitative interpretation of remaining oil or gas by using time-lapse seismic information.By constructing the relationship chart between the change of reservoir fluid characteristic parameters(such as fluid saturation,pressure,etc.)and the change rate of time-lapse seismic sensitive parameters,the rockphysical interpretation chart representing a static time point is replaced by a dynamic physical interpretation chart changing with fluid,so as to realize the quantitative interpretation of the thickness and distribution of the remaining oil layer and reduce the interpretation ambiguity.The application in S Oilfield has achieved good application effect,and the predicted result of residual oil thickness is highly consistent with the measured result,which effectively guides the optimization of production well location in the study area and reduces the development risk.

关 键 词：石物性 流体因子 时移岩石物理解释图版 定量解释 剩余油预测 

分 类 号：TE122[石油与天然气工程—油气勘探]