摘要
泡沫辅助蒸汽驱能够有效抑制蒸汽"超覆"和气窜现象,提高热能的利用率,从而进一步提高稠油油藏的采收率。利用物理模拟和数值模拟技术,研究了泡沫辅助蒸汽驱的开采特征和开发效果。研究结果表明:泡沫能够有效封堵高渗岩心,使得后续蒸汽更多的进入低渗岩心,改善蒸汽的驱油效率;泡沫有效抑制了蒸汽的气窜,使得蒸汽更多的进入油层中部和下部,改善了吸汽剖面,提高了热能的利用率,提高了油藏的最终采收率。
Foam assisted steam flooding can effectively restrain steam overlap and gas channeling, improve the efficiency of heat en-ergy, thereby improving heavy oil recovery. Physical simulation and numerical stimulation are used to study development character-istics and efficiencies of foam assisted steam flooding. The research shows that foam can effectively plug high permeability core, in-ject more subsequent steam into low permeability core, and improve steam displacement efficiency. Moreover, foam effectively re-strains gas channeling, injects more steam into middle and lower parts of reservoir, thereby improving gas injection profile, increas-ing heat energy efficiency and reservoir ultimate recovery.
出处
《油气藏评价与开发》
2014年第4期47-52,共6页
Petroleum Reservoir Evaluation and Development
关键词
泡沫
稠油
蒸汽驱
物理模拟
数值模拟
foam
heavy oil
steam flooding
physical simulation
numerical simulation
