摘要
SZ36-1海上稠油油藏经过长期注水开发,表现出含水率上升快、水驱动用效果差的问题,须采用可动凝胶调驱作为提高采收率的重要措施。通过对可动凝胶调驱质量传输流体力学、化学动力学的深入研究,初步建立了可动凝胶体系深部调驱数学模型,描述了可动凝胶体系在多孔介质中的复杂渗流行为。编制了数值模拟软件,对SZ36—1海上稠油油藏凝胶调驱注入参数进行了优化设计,当地层原油粘度小于70mPa·s,油藏综合含水率小于60%,最佳凝胶用量为0.2倍孔隙体积时,最适宜用可动凝胶调驱。
Throngh waterflood development for long time,the water cut in- creases fast and water driving efficiency was very.poor in SZ36- 1 offshore heavv oil reservoir.Mobile gel may be applied in en- hancing oil recovery.Through intensive research of mass transfer hydromechanics and chemical kinetics in profile control and oil displacement of the mobile gel,mathematical models of percola- tion of the mobile gel system were established,and the complex percolation behavior of the mobile gel in porous media was de- scribed.A numerical simulation software was programmed,and the parameter optimization was performed for the profile control and oil displacement of the mobile gel in SZ36-1 Oilfield,an offshore heavy oil reservoir.
出处
《油气地质与采收率》
CAS
CSCD
北大核心
2008年第4期62-65,共4页
Petroleum Geology and Recovery Efficiency
基金
国家“863”项目“渤海油田聚合物驱提高采收率技术研究”(2007AA090701)
关键词
可动凝胶
渗流特性
数学模型
数值模拟
参数优化
稠油油藏
mobile gel
percolation behavior
mathematical model
numerical simulation
parameter optimization
heavy oil reservoir
