Study on Stability and Treatment of Surfactant/Polymer Flooding Waste Water |
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| Authors: | W L Kang B Xu Y J Wang X H Shan Y Li Q C Liu |
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| Affiliation: | 1. EOR Research Center, China University of Petroleum (East China) , Qingdao , Shandang , China;2. School of Petroleum Engineering, China University of Petroleum (East China) , Qingdao , Shandong , China;3. School of Petroleum Engineering, China University of Petroleum (East China) , Qingdao , Shandong , China |
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| Abstract: | Surfactant is mainly responsible for the stability of oil droplets in surfactant/polymer flooding waste water compared with polymer, decreasing oil-water interfacial tension, and zeta potential on the surface of the oil droplets. Flocculation and demulsification were conducted to remove the stable oil droplets. Demulsifier reverse phase demulsifer-E (RPDE) together with flocculant cationic polyacrylamide is effective in accelerating the coalescence of small oil droplets in surfactant/polymer flooding waste water due to synergistic effect of demulsification and flocculation. |
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| Keywords: | demulsification flocculation polymer stability surfactant waste water |
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