Comparative Study of Extensional Viscoelasticity Properties of Liquid Films and Stability of Bulk Foams |
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| Authors: | Guoqing Jian Shuyan Chen Dehu Wang Yousong Luo Zhe Wang |
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| Affiliation: | 1. State Key Laboratory of Enhanced Oil Recovery , Research Institute of Petroleum Exploration and Development (RIPED), CNPC , Beijing , P. R. China;2. Department of Chemistry and Chemical Engineering , University of Science and Technology Beijing , Beijing , P. R. China;3. School of Energy Resources, China University of Geosciences (Beijing) , Beijing , P. R. China |
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| Abstract: | The extensional viscoelasticity modulus and conductivity of liquid films and stability of bulk foams were investigated respectively. The effects of sinusoidal exciting frequency, polymer type, and polymer concentration on liquid film viscoelasticity modulus were systematically discussed. Higher film viscoelasticity modulus could be assigned for FS01/MPAM film systems than for FS01/HPAM ones. The film conductivity result showed that FS01/HPAM or FS01/MPAM liquid film systems could delay the liquid drainage speed under dynamic conditions compared with FS01 ones. Bulk foam test based on Waring Blender method indicated that FS01/HPAM foam was more stable than FS01/MPAM. Compared with static bulk foam test, the extensional viscoelasticity and conductivity method could reflect the dynamic behavior of liquid films. |
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| Keywords: | Enhanced oil recovery liquid film polymer surfactant viscoelasticity |
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