影响高黏弹性聚合物驱油效果的地质因素的分析

Analysis of Geological Factors of the High-viscosity Elastic Polymer Flooding

喇嘛甸油田的高黏弹性聚合物驱油试验取得了明显的增油降水效果。采收率提高幅度在20%以上,总采出程度超过60%,已成为大庆油田4 000万吨稳产的重要技术之一。从砂体成因入手,结合动态数据,分析试验区不同沉积模式砂体沉积特点。总结出不同油层条件对高黏弹性聚合物驱油效果影响,为高黏弹性聚合物驱油技术推广应用时方案设计及动态分析提供依据。

The obvious water precipitation reduction and oil increase are achieved in high -viscosity elastic polymer flooding displacement in Lamadian Oilfield, with improving recovery ratio 20 percent or more, total recovery percent over 60%, it has become one of the important technologies in maintaining 40-million-ton crude oil production in Daqing Oilfield. Starting from the causes of sand bodies, combined with the dynamic data to analyze the characteristics of different depositional model of sand deposition, the affect of different reservoir conditions of high viscosity elastic polymer flooding effects is summed up, providing the basis for the program design and dynamic analysis of high-viscosity elastic polymer flooding technology promotion.