高分辨率层序地层学在油藏数值模拟中的应用

首先通过识别测井曲线和岩芯资料的相序来进行基准面旋回的识别;然后根据合成记录进行时深转换,将测井层序划分标定在地震剖面上,按照地震反射同相轴和内部反射特征进行追踪对比,形成油藏储层的高分辨率层序格架。在此基础上,将划分的中期旋回作为油藏储层物理模型的分层;在每一个分层中,依据中期旋回沉积微相的平面分布来划分非均质分区,储层在每个分区内都可近似认为是均质的。这样建立起来的油藏储层物理模型更符合实际地质情况,从而使油藏数值模拟的生产史匹配变得比较容易,使油藏数值模型更符合客观实际。

APPLICATION OF HIGH RESOLUTION SEQUENCE STRATIGRAPHY

According to recognized stratigraphic base level cycles and the results of time depth tansformation,log sequences were marked on seismic profiles and were contrasted with each other so as to obtain reservoir high resolution sequence stratigraphic framework.Take intermediatie term cycle as the stratification of reservoir physical model,the distribution of the cycle's sedimentary microfacies could be use to divide nonhomogenous subregions of the model.A reservoir physical model established by application of above mentioned methods must be more practical;the reservoir numerical simulation will be more easier to match with actural production history.