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Retention Behaviors of Hydrophobically Associating Polyacrylamide Prepared via Inverse Microemulsion Polymerization Through Porous Media |
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| Authors: | Hongsheng Lu Yujun Feng Tailiang Zhang Zhiyu Huang |
| Institution: | 1. Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences , Chengdu, Sichuan, P. R. China;2. School of Chemistry and Chemical Engineering , Southwest Petroleum University , Xindu, Sichuan, P. R. China;3. Engineering Research Center of Oilfield Chemistry , Ministry of Education , Xindu, Sichuan, P. R. China;4. Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences , Chengdu, Sichuan, P. R. China;5. School of Chemistry and Chemical Engineering , Southwest Petroleum University , Xindu, Sichuan, P. R. China |
| Abstract: | The retention behavior of hydrophobically associative polyacrylamide (HAPAM) with homogeneous composition in porous media was investigated. The results showed that HAPAM could exhibit different retention behavior, compared to PAM due to the existence of hydrophobic association group in HAPAM molecular frame. The critical association concentration could also be reflected by the curves between HAPAM concentration and retention amount. The retention amount of HAPAM was higher than that of polyacrylamide (PAM) and was smaller than the absorption amount of HAPAM. The retention mechanism was mainly controlled by adsorption mechanism. |
| Keywords: | Hydrophobically associating polyacrylamide retention behavior adsorption porous media polymer flooding |