非一致性采集资料地震振幅属性分析

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。

Analysis of Seismic Amplitude Attributes on Non-uniform Collecting Data

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 seis- mic 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.