【摘要】 油气藏开发过程的实质就是一个流体置换的过程,这就为非一致性采集资料地震监测提供了可能。本文基于gassmann方程,详细地分析了流体替代时储层物性参数(地震波速度,密度,泊松比等)的变化规律,建立了相应的孔隙度变化地震地质模型。最终对该模型所提取的振幅类属性进行优选技术处理,找到了适合本工区的两种敏感振幅属性,为准确预测目的储层段剩余油的分布奠定了基础。更多还原

【Abstract】 The essence of the reservoir development process is a fluid displacement,which may provide a possible for time-lapse seismic monitoring.Based on Gassmann equation,this paper discussed in detail the change rule of petro physical parameters(seismic wave speed,density and poison ratio) when the fluid is replaced.And then it establishes a seismic geological model with the changes of porosity.By optimizing the amplitude attributes extracted from the seismic geological model,finally we found out the sensitive attributes suitable for the work area,which provides a reference for accurately predicting the distribution of the remaining oil.更多还原