自生CO2泡沫驱油可行性研究

针对低矿化度,中低温的稠油油藏,开展自生CO<,2>泡沫驱油的可行性研究.通过大量的实验,筛选出了稳定高效、经济可行的生气体系以及性能优越的起泡剂和稳泡剂,得到了优良的自生泡沫体系配方.考察了温度对自生泡沫体系起泡性和稳泡性的影响,并对自生CO<,2>泡沫体系的粘度的长期稳定性和油水界面张力性质进行了测定.实验结果表明...

The Feasibility of Self-generating CO2 Foam Flooding

Aiming at the heavy oil reservoirs of low salinity and low temperature,the feasibility of self-generating CO2 foam was studied.The foam system with a high efficiency was filtrated,which was steady,economic and easily operated and foaming agent and foam stabilizer agent with superior performance after deploying the feasibility study of self-generating CO2 foam flooding through a lot of experiment.The influence of the temperature on the foaming ability and stability ability of the self-generating foam system was investigated,and the long-term stability of the viscosity and the oil-water interfacial tension on the system were tested.The experimental showed that Xanthan gum was a good foam stabilizer agent,which can keep the long-term stability of viscosity.Compared with the polymer flooding,the self-generating CO2 foam system can improve recovery 6.2%～8.4%.