自生CO_2泡沫驱油可行性研究  

The Feasibility of Self-generating CO_2 Foam Flooding

作　　者：巫光胜[1] 蒲万芬[1] 

机构地区：[1]西南石油大学油气藏地质及开发工程国家重点实验室,四川成都610500

出　　处：《广州化工》2011年第9期101-103,共3页GuangZhou Chemical Industry

摘　　要：针对低矿化度,中低温的稠油油藏,开展自生CO2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CO2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,黄原胶做稳泡剂时,能保持粘度的长期稳定稳定性;自生CO2泡沫体系比单一聚合物能提高的采收率6.2%～8.4%。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%.

关 键 词：自生CO2泡沫 起泡性 粘度稳定性 界面张力 

分 类 号：TQ328.3[化学工程—合成树脂塑料工业]