Selective Water Blocking Mechanism Analysis of Double Crosslinked Gel Plugging Agent

1st International Conference on Frontiers of Materials Synthesis and Processing

材料科学;化学

Guo, Hao^1 ; Liu, Qingwang^1 ; Fan, Zhenzhong^1 ; Wang, Jigang^1 ; Xu, Jianjun^1

Department of Petroleum Engineering, Northeast Petroleum University, DaQing City Heilongjiang Province, 163318, China^1

关键词: Double crosslinking;    High-efficiency;    Microscopic morphology;    Plugging agent;    Plugging effect;    Secondary networks;    Water plugging;    Water retention;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/274/1/012109/pdf
DOI  :  10.1088/1757-899X/274/1/012109

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The microscopic morphology of the plugging agent was observed by scanning electron microscope. Double crosslinking system has dense pores and full structure. The outer network in the double crosslinked gel is filled into the voids of the network. This mainly forms a secondary network in the form of filling, which can greatly improve the water retention and viscoelasticity of the gel. Based on microscopic morphology, the principle of high efficiency plugging was analyzed. The water plugging in the well is simulated by visual model, and the selective plugging effect of double crosslinked gel is observed more intuitively.