聚合物溶液流经多孔介质时剪切降解的实验研究  

AN EXPERIMENTAL STUDY ON SHEAR DEGRADATION OF HPAM SOLUTIONS FLOWING THROUGH POROUS PEDIA

作　　者：卢祥国[1] 闫文华[1] 宋合龙[1] 高振环[1] 

机构地区：[1]大庆石油学院石油工程系

出　　处：《油田化学》1995年第4期375-378,共4页Oilfield Chemistry

摘　　要：测定了３种分子量（５×１０~６，１０×１０~６，１８×１０~６）的浓度１０００ｐｐｍＨＰＡＭ水溶液，以不同的剪切速率（１８００－１６８００ｓ^（－１））流过低、中、高３种渗透率（０．５．０．９，４．１μｍ~２）的人造砂岩岩芯后的粘度和特性粘数损失，研究了流经多孔介质时的剪切降解（溶液粘度和特性粘数下降）与剪切速率、介质渗透率、分子量之间的关系，得到了一些定性规律。The solution viscosity and characteristic viscosity are determined after the 1000 ppm aqueous solutions of HPAM of different molecular mass(5.0×10￣6 , 10 ×10￣6 and 18×10￣6) having flown through artificial sandstone cores of different permeability (0.5.0.9 and 4.1 μm￣2) at different shear rate in range 1800- 16800 s￣(-1). The shear degradation (reduction in viscosities) is discussed in relation to the polymer molocular mass([η]).the medium permeability and the shear rate and some qualitative statements are presented.

关 键 词：化学驱油 高聚物驱油 剪切降解 驱油剂 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程]