Stabilization of SiO2 nanoparticle foam system and evaluation of its performance

International Symposium on Resource Exploration and Environmental Science

地球科学;生态环境科学

Sun, Chong^1 ; Fan, Zhenzhong^1 ; Liu, Qingwang^1 ; Wang, Jigang^1 ; Xu, Jianjun^1

Northeast Petroleum University, Daqing, Heilongjiang

163318, China^1

关键词: Composite foams;    Foam flooding;    Oil displacement;    Oil recoveries;    Optimum concentration;    Profile control;    Salt tolerance;    SiO2 Nanoparticles;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/64/1/012026/pdf
DOI  :  10.1088/1755-1315/64/1/012026

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

As tertiary recovery is applied in the oil field, foam flooding technology plays an important role in the oil field. Steam flooding is easy to generate a series of problems such as excessive pressure, gas channelling, heat loss ect. The foam flooding can be better used in the formation of plugging and profile control. However, the foam is not stabilizing in thermodynamics and breaks easily while it encounters oil. So the emphasis of the research is how to make the foam stable. The Warning Blender method is used to evaluate the foam In the course of experiment, which verifies that the modified Nano SiO2solid not only works very well in coordination with SDS solution but also contributes to the generation of stable foam in solution. The optimum concentration of SDS is determined by 0.5%, and the best concentration is 1.4% of H20 type SiO2particles that the concentration is 79.26°. Finally, the 0.5%SDS+1.4%H2O type SiO2is chosen as the complete foam flooding system, and the performance of salt tolerance and oil displacement of composite foam system is evaluated. It is concluded that the stability of foam is the key to improve the oil recovery.