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從微觀驅(qū)油實(shí)驗(yàn)出發(fā),研究了系列質(zhì)量濃度的黏彈性聚合物(HPAM)溶液和系列黏度的甘油溶液對(duì)斑狀潤濕條件下的殘余油的驅(qū)油效率,分析了黏彈性的HPAM溶液和甘油溶液對(duì)殘余油的作用,給出了HPAM溶液的彈性與驅(qū)油效率的關(guān)系.研究結(jié)果表明:在相同黏度條件下,HPAM溶液的驅(qū)油效率高于甘油溶液的驅(qū)油效率;HPAM溶液的彈性可以提高驅(qū)油效率,在該實(shí)驗(yàn)條件下,HPAM溶液彈性作用的最佳質(zhì)量濃度為1.0～2.0g/L. 【作者單位】：大慶石油學(xué)院石油工程學(xué)院;大慶石油學(xué)院石油工程學(xué)院;大慶油田有限責(zé)任公司科技發(fā)展部;大慶油田有限責(zé)任公司第六采油廠 黑龍江大慶　163318;黑龍江大慶　163318;黑龍江大慶　163453;黑龍江大慶　163000 【關(guān)鍵詞】：聚合物溶液;黏彈性;斑狀潤濕;驅(qū)油效率;彈性效應(yīng) The effect of elastic behavior of HPAM solution on displacement efficiency XIA Hui-fen~1;KONG Fan-shun~1;WU Jun-zheng~2;XU Yan-shu~3( 1. College of Petroleum Engineering;Daqing Petroleum Institute;Daqing;Heilongjiang 163318;China; 2. Dept. of Science and Technology Development;Daqing Oilfield Corp. Ltd.;Daqing;Heilongjiang 163318;China; 3. Oil Recovery Plant No. 6;Daqing;Heilongjiang 163000;China ) 　In this paper, the rheological characteristic of HPAM solutions is studied and the oil displacement efficiency of viscous-elastic HPAM solutions (mass concentration in series) and viscous glycerin solutions (no elasticity, viscosity in series) are calculated by flooding at visual microscopic glass models. Also, the effect and mechanism of the elastic behavior of HPAM solutions and glycerin solution on the displacement of residual oil films under mixed wettability conditions are studied, the relationship between the elastic behavior of HPAM and oil displacement efficiencies are given in the experiment condition. It is indicated that the oil displacement efficiency of polymer solution is higher than that of glycerin solution at the same viscosity. The elastic behavior of polymer solution can increase the displacement oil efficiency. At the experiment condition, the optimum range of concentration of polymer solution is 1.0～2.0 g/L for higher displacement oil efficiency. 【Keyword】：HPAM solution;Visco-elastic behavior;mixed wettability;oil displacement efficiency;elastic effect