SiO_2-SDS复合泡沫体系配制与评价  

Preparation and evaluation of SiO_2-SDS composite foam system

作　　者：孙宠 范振中[1] 刘浪[1] 乔三原 张喆[2] SUN Chong FAN Zhen-zhong LIU Lang QIAO San-yuan ZHANG Zhe(Northest Petroleum University,Daqing 1633.18,China No.4 Oil Extration Plant, Daqing Oil Field, Daqing 163000, China)

机构地区：[1]东北石油大学,黑龙江大庆163318 [2]大庆油田第四采油厂,黑龙江大庆163000

出　　处：《化学工程师》2017年第7期68-71,共4页Chemical Engineer

基　　金：中石油创新基金(No.27140002)(深度低伤害酸液酸岩反应机理研究)

摘　　要：泡沫驱油技术已经在油田三采中得到了广泛的发展。但泡沫的稳定性一直受其自身热力学不稳定性和遇油消泡等因素制约,因此,泡沫的稳定性是值得研究讨论的重点。随着纳米技术的发展,纳米SiO_2固相颗粒不但可以与起泡剂溶液起到良好的协同作用而且纳米SiO_2颗粒本身也具有耐高温性质,可应用于高温条件下的稳泡剂。实验室通过Warning Blender方法对泡沫体系进行评价并通过接触角测量实验,最终优选出接触角为80.26°的H20型的SiO_2固相颗粒作为稳泡剂使用。通过对比SDS与SDS+SiO_2两种泡沫体系,发现SDS+SiO_2复合泡沫体系在耐温与驱油方面都强于单一SDS泡沫体系。并且最终确定出0.5%SDS+1.4%H_2O型SiO_2作为完整的泡沫驱油剂体系。Foam flooding technology has been widely developed in the three oil field. However, the stability of the foam has been restricted by its thermodynamic instability and oil spill. Therefore, the stability of foam is worthy of study and discussion. With the development of Nanotechnology, Nanometre SiO2 solid particles can not only play a good synergistic effect with the foaming agent solution, but also have high temperature resistant properties of nano SiO2 particles. In the laboratory, the foam system was evaluated by Warning Blender method and the contact angle measurement experiment was carried out. Finally, the H2O type solid particles with contact angle of 80.26°SiO2 were selected as the foam stabilizer.By comparing SDS and SDS＋SiO2 foam system, it was found that the SDS＋SiO2 composite foam system was better than single SDS foam system in temperature and oil displacement. Finally, the 0.5%SDS＋1.4%H2O SiO2 as the complete foam flooding agent system was determined.

关 键 词：泡沫驱油剂 稳泡剂 固相颗粒 接触角 脱附能理论 

分 类 号：TE357[石油与天然气工程—油气田开发工程]