基于油藏工程方法的低渗透油藏合理注采系统研究  

Research on technology policy of the injection and production system in low permeability reservoir by reservoir engineering methods

作　　者：龙隆[1] 李亚军[1] 宫厚健[1] 董明哲[1] 吕爱民[1] 

机构地区：[1]中国石油大学(华东)石油工程学院,山东青岛266580

出　　处：《中国科技论文》2016年第15期1687-1692,共6页China Sciencepaper

基　　金：国家自然科学基金资助项目(51274225;51204198);高等学校博士学科点专项科研基金资助项目(20110133110007)

摘　　要：在低渗透油藏开发过程中,由于低渗透油田的渗透率低、孔喉细小及对压力敏感效应等特点,低渗透油藏较之中高渗油田,具有特殊的渗流规律和油气田开发特征。针对油藏特点的注采系统也对油藏的开发效果及采出程度有巨大影响,为延缓产量下降、推迟油井见水时间以至最终提高开采效果和采收率,运用油藏工程方法,研究了低渗透油藏的合理地层压力、合理采油速度及合理注采比等注采系统的优选方法,并通过对实际数据的应用比较了各种方法的优缺点。通过计算得出,实际油藏现有地层压力、采油速度和注采比偏低。In the process of developing the low permeability reservoirs, there are several difficulties for maintain the productivity： low penetration, small pore throat, and pressure-sensitive effects. Different with the high permeability reservoirs, the fluids in the low permeability reservoirs have special flow rules and the characteristics of oil and gas field development are different To delay productivity decline and water breakthrough, the reservoir engineering was introduced to improve the ultimate recovery. Formation pressure, oil recovery rate, and injection production ratio were investigated to optimize the injection and production system by reservoir engineering methods,and the optimization was verified by the real productivity. The results by calculation show that, the formation pressure, oil recovery rate and injection-production ratio of the actual reservoir are low.

关 键 词：油藏工程 低渗透油藏 注采系统 地层压力 采油速度 

分 类 号：TE348[石油与天然气工程—油气田开发工程]