疏水缔合聚合物HT-1在多孔介质中的渗流类型  

Seepage Types of Hydrophobic Association Polymer HT-1 in Porous Media

作　　者：杨云[1] 冯茹森[2,3] 

机构地区：[1]天津商业大学,天津300134 [2]油气藏地质及开发工程国家重点实验室,四川成都610500 [3]西南石油大学化学化工学院,四川成都610500

出　　处：《精细化工》2016年第8期927-932,共6页Fine Chemicals

基　　金：国家科技重大专项(No.2011ZX05010-004)~~

摘　　要：用实验自制平板夹砂渗流装置,考察了疏水缔合聚合物在两级串联平板夹砂渗流模型中渗流。结果表明：疏水缔合聚合物在两级串联多孔介质中存在三类不同的渗流类型,与孔隙介质的渗透率相关。第Ⅰ类：当渗透率大于1.8μm^2时,表现为阻力系数在流动方向上相等的渗流特性;第Ⅱ类：当渗透率等于1.8μm^2时,表现为阻力系数在流动方向上增大的渗流特性;第Ⅲ类：当渗透率小于1.8μm^2时,表现为阻力系数在流动方向上减小的渗流特性。通过单级与两级串联平板夹砂渗流模型中渗流实验的对比,推断出第Ⅱ类和第Ⅲ类渗流类型中阻力系数的差异是由聚集体变化造成的。并采用单级与两级串联微孔滤膜过滤实验和动态光散射实验考察了渗流过程中聚集体尺寸变化,验证出第Ⅱ类和第Ⅲ类渗流类型中阻力系数的差异是由疏水缔合聚合聚集体尺寸在串联平板夹砂模型中发生变化造成的。The seepage experiment of the hydrophobic association polymer was carried out in the two stage series flat sand inclusion seepage model. The results showed that the hydrophobic association polymer in the two stage series possessed three different types of seepage characteristic in the porous media and associated with the permeability of the porous media. The first seepage type（ Ⅰ） was that the polymer had the same drag coefficient on the direction of flow when the permeability was greater than 1. 8 μm^2. The second seepage type（ Ⅱ） was that the polymer had an increase of the drag coefficient on the direction of flow when the permeability was equal to 1. 8 μm^2. The third seepage type（ Ⅲ） was that the polymer had a decrease of the drag coefficient on the direction of flow when the permeability was less than 1. 8 μm^2. By comparison of the experimental results of single stage and two stage series plate clamp flow experiment of sand flow models,it was proved that the drag coefficient difference of the second seepage type and the third seepage type was resulted from the changes in the seepage aggregate. The seepage aggregate size changes were studied through the single-stage and twostage tandem microporous membrane filtration experiment and dynamic light scattering experiment. The results showed that the difference of the drag coefficient of the above mentioned two seepage types wascaused by the size change of the hydrophobic association polymer in the series plate clip sand model.

关 键 词：疏水缔合聚合物 阻力系数 聚集体 渗流类型 油田化学品与油品添加剂 

分 类 号：TE39[石油与天然气工程—油气田开发工程]