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疏水缔合聚合物的阻力系数和残余阻力系数及驱油效率研究
Study of the Coefficient of Resistance and Residual Resistance Factor and Displacing Efficiency of Hydrophobically Associating Polymer
【摘要】 在模拟大庆油田条件(45℃)下,进行疏水缔合聚合物和工业产品甘油(丙三醇)的阻力系数(FR)和残余阻力系数(FRF)的测定以及人造岩心驱油实验,并将实验结果进行对比。实验结果表明,在相同条件下,疏水缔合聚合物阻力系数和残余阻力系数分别大于14和8,均高于甘油的阻力系数和残余阻力系数;在人造岩心(渗透率Kg在0.9~1.3μm2)上的驱油实验结果显示,在水驱采收率的基础上,污水配制的疏水缔合聚合物溶液可以提高采收率16%~18%,比甘油驱采收率高6%~8%。
【Abstract】 The oil displacing performance of a commercial hydrophobically associating polymer(HAP) at simulating Daqing reservoir conditions is investigated in laboratory through RF and RRF measurements and core flooding experiments in comparison with a commercial glycerol. HAP solution flow through artificial cores of Kg=0.9~1.3μm2, RF>14 and RRF>8 are observed. On artificial cores of Kg=0.9~1.3μm2, the displacing efficiency of 1760mg/L HAP solution for residual oil after water flooding is 6%~8% higher than that of glycerol solution of equal concentration.
【Key words】 Hydrophobically associating polymer; glycerol; coefficient of resistance; residual resistance factor; oil displacement efficiency;
- 【文献出处】 海洋石油 ,offshore Oil , 编辑部邮箱 ,2005年03期
- 【分类号】TE357.4
- 【被引频次】35
- 【下载频次】1057