地质因素对周期注水影响的数值模拟研究

周期注水作为一种在非均质油藏提高原油采收率的注水方法，其理论基础是基于脉冲注水和注水方式的改变。主要优点是使注水油田含水率下降和采收率提高。采收率的提高主要依赖于周期注水过程中提高了低渗透带的波及效率。该方法已经成功运用到俄罗斯，美国，中国很多油田^1]。本文借助先进软件首次探讨了初始含水饱和度对周期注水的影响和不同长度周期中它的力学作用机理。

Effects of geological coefficients to cyclic waterflooding through numerical simulation

Cyclic waterflooding is an IOR method that improves oil production in heterogeneous reservoirs.The concept of this method is based on pulsed injection and alternating of waterflood patterns.The main advantages are water cut reduction and oil recovery which relies on enhancing the sweeping of low permeability zone.This way has been successful in Russia,USA,China.In this paper,the initial water saturation effecting cyclic waterflooding and mechanics mechanism of cyclic waterflooding in different cycles have b...