The delayed crosslinking amphiphilic polymer gel system based on multiple emulsion for in-depth profile control |
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| Authors: | Bin Xu Jian Zhang Xiangming Hu |
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| Institution: | 1. Department of Applied Chemistry, College of Chemistry and Chemical Engineering, Binzhou University, Binzhou, Chinacnxubin@126.com;3. Department of Applied Chemistry, College of Chemistry and Chemical Engineering, Binzhou University, Binzhou, China;4. Key Lab of Mine Disaster Prevention and Control, College of Resource and Environmental Engineering, Shandong University of Science and Technology, Qingdao, China;5. Department of Resources and Environmental Engineering, Binzhou University, Binzhou, China |
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| Abstract: | Delayed crosslinking polymer gel systems are widely used in-depth profile control technology for water production control. In this paper, an amphiphilic polymer P(AM-NaA-DDAM) was synthesized by a free radical micellar polymerization method and a delayed crosslinking amphiphilic polymer gel system was prepared based on multiple emulsion of W1/O/W2 emulsion which was prepared by a two-step emulsification method. The optimized formulation of amphiphilic polymer gel systems is: 0.15% P(AM-NaA-DDAM), 0.3% methenamine, 0.02% resorcinol, and 0.3% citric acid. The delayed gelation time of the delayed crosslinking amphiphilic polymer gel system is closely related to the stability of the W1/O emulsion. By using multiple emulsion delayed crosslinking method, the delayed crosslinking amphiphilic polymer gel system with diesel as the oil phase can delay the gelation time up to 168 hours. |
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| Keywords: | Amphiphilic polymer gel delayed crosslinking gelation time in-depth profile control multiple emulsion |
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