中深层稠油油藏开发方式优化研究

Optimization of the Development Way in Middle-Deep Strata Heavy Oil Reservoirs

对于中深层普通稠油油藏由于地层原油粘度高,埋藏深度大,井筒热损失很大,热采作为稠油油藏主流开采技术在这样的中深层稠油油藏中遇到了很大的困难。为了更好的开发这类油藏,本文通过数值模拟方法对此类油藏进行了几种开发方式(天然能量、常温水驱、氮气泡沫驱、CO_2气水交替驱)的对比研究,确定了最优开发方式。

For the mid-deep common heavy oil reservoir, due to the high viscosity of formation oil, the deep buried depth and the big wellbore heat loss, the thermal recovery technology as the major production technology in such mid-deep heavy oil reservoirs has met great difficulties. In order to better develop this kind of reservoir, the comparative research of several development methods（natural energy driving, normal temperature water flooding, nitrogen foam displacement and CO2 WAG） was carried out through numerical simulation method. At last, the optimal development method was determined.