疏水缔合两性聚合物NAPs水溶液的渗流性质  

The Flow Properties of Aqueous Solution of Hydrophobically Associating Amphoteric Polymer NAPs through Porous Media

作　　者：王健[1] 罗平亚[1] 张国庆[2] 

机构地区：[1]西南石油学院,四川南充637001 [2]中原油田采油五厂,河南濮阳457001

出　　处：《油田化学》2001年第2期152-154,共3页Oilfield Chemistry

摘　　要：实验测试了疏水缔合两性聚合物NAPs水溶液在大庆油层条件下通过孔隙介质渗流时的阻力系数、残余阻力系数和有效粘度 ,并与大庆自产聚合物HPAM的相应值进行了比较。实验结果表明 ,在大庆油层条件下 ,NAPs水溶液的有效粘度比HPAM的大 2 2 .3%— 38.7%。聚合物驱过程中有效粘度的最佳发挥 ,对提高采收率具有十分重要的意义。有效粘度不仅取决于聚合物浓度和孔隙结构性质 ,而且取决于聚合物分子结构特性 。The flow properties of aqueous solutions of an amphoteric hydrophobically associating polymer, NAPs, in produced water( TSD =4 000 ppm) through reservoir cores from Daqing at 45℃(typical temperature in reservoir strata at Daqing) are investigated in comparision with that of a commercial polymer HPAM and the values of their effective viscosity, μ ef , resistance and residual resistance factors, F R and F RR , are determined from the experimental data obtained by using Darcy's equation. It is shown that the μ ef values for NAPs are larger by 22.3—38.7% than that for HPAM; the increase in μ ef owing to increase in polymer concentration(from 700 to 1 000 ppm) is higher for NAPs than that for HPAM. These phenonema are explained by the effect of hydrophobical association of NAPs molecules in aqueous solution.

关 键 词：疏水缔合聚合物 两性聚合物 水溶液 渗流 有效粘度 驱油聚合物 大庆油田 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程] TE39