摘要
在对高温泡沫驱油作用机理进行研究的基础上,建立了高温泡沫驱油数学模型。该模型充分考虑了对流、弥散及表面活性剂损失等机理。对该模型进行了数值求解,模型采用自适应隐式方法求解。将模型结果与国外软件进行了对比,证明该模型及算法的正确性及可靠性。利用该模型讨论了泡沫注入参数对驱油效果的影响,随着泡沫剂浓度的增加,原油产量增加,最佳注入浓度应为0.6wt%;泡沫注入时机和气液比应根据油藏条件,进行优化。
Based on study on mechanisms of high temperature foam flooding, mathematical model of this technology was developed. Convection, dispersion, and surfactant loss due to degradation and chemical reaction were considered in describing the surfactant flow in porous media. The model was solved numerically by using adaptive implicit method. The validity and reliability of the model and the calculation method were proved by comparing the results with those obtained from CMG. The effects of foam injection parameters on oil production were discussed. Oil production increases with the increase of foam concentration. The best foam concentration is about 0.6wt%. The time to inject foam and the ratio of gas to water should be optimized according to the reservoir.
出处
《水动力学研究与进展（A辑）》
CSCD
北大核心
2008年第4期379-384,共6页
Chinese Journal of Hydrodynamics
基金
中国石油天然气集团公司石油科技中青年创新基金项目(05E7032)资助
关键词
泡沫驱油
数学模型
数值模拟
高温
foam flooding
mathematical model
numerical simulation
high temperature
