红浅稠油蒸汽驱开发技术研究

本文从汽驱开发特征、蒸汽驱驱油机理、矿场跟踪研究和数值模拟研究出发 ,系统阐述了这类油藏蒸汽驱开发技术策略。间歇注汽法可提高蒸汽比容 ,提高蒸汽波及体积和热利用率 ,改善油层渗流特征 ,达到改善驱油效果的目的。红一区八道湾组油藏采用间歇注汽方式 ,汽窜现象得到有效抑制 ,油汽比和采油速度大幅度提高 ,含水上升趋势得到控制 ,取得较好的经济效益。

Study on Steam Driving Heavy Oil Reservoir in Hong Qian Oilfield

Based on the exploitation feature of steam driving, the mechanism of steam driving and the studies of on-the-spot observation and simulation,this paper, systematically presents the technical strategy of developing this kind of reservoir by steam flooding. Intermittent steam injection can increase the specific volume, swept volume and utilization ratio of heat,and can improve formation of seepage in oil reservoir so as to improve flooding effect. When intermittent steam injection was applied to the BaDaoWan group reservoir in Hong1 area, steam breakthrough was effectively controlled; the ratio of oil to gas and oil extraction rate were increased greatly, and the increasing of water cut was controlled, resulting in better economic benefit.