多维非均质砂岩油藏聚合物驱后剩余油分布规律

应用大庆油田开发的相控建模软件（ISGR）建立了四种河流相非均质砂岩油藏概念模型：辫状河、曲流河、低弯曲分流河、顺直分流河。应用全隐式聚驱油藏数值模拟软件对这四种模型进行了从水驱到聚驱的整个驱油过程的模拟，使用ECLIPSE的FLOVIZE插件对驱油过程进行了三维显示。并对水驱后聚合物驱对剩余油分布的影响进行了初步的分析，研究了模型中的沉积微相、废弃河道、水平夹层、侧积夹层、韵律等因素对剩余油分布规律的影响。

Remaining Oil Distribution Rules for Multi Dimension Sandstone Oil Reservoir After Polymer Flooding

Four types of fluvial facies heterogenous sandstone oil reservoir conceptual models have been built based on facies controlled model building software (IS-GR ) developed by Daqing oilfield. They include the models for braid river, meandering river, low-sinuosity distributary channel and straight distributary channel. With the application of fully implicit numerical simulation software for polymer flooding oil reservoirs, these 4 models were simulated for the whole oil displacement process from waterflood to polymer flooding, and FLOVIZE package based on ECLIPSE was used for 3D display during oil displacement process. The effect of polymer flooding after waterflood on remaining oil distribution was analyzed, and the effect of some factors, such as sedimentary microfa-cies, abandoned channel, horizontal interbed, lateral accumulation interbed, rhythm, et al. , on remaining oil distribution rules was established.