Rheological properties of polymer micro-gel dispersions

被引：19

作者：

Dong Zhaoxia ^{[1
]}

Li Yahua ^{[1
]}

Lin Meiqin ^{[1
]}

Li Mingyuan ^{[1
]}

机构：

[1] China Univ Petr, Enhanced Oil Recovery Res Ctr, Beijing 102249, Peoples R China

来源：

PETROLEUM SCIENCE | 2009年 / 6卷 / 03期

关键词：

Polymer micro-gel; rheological property; shear-thickening; shear-thinning; DILATANT VISCOSITY BEHAVIOR; CONCENTRATED SUSPENSIONS; FLOW;

D O I：

10.1007/s12182-009-0047-3

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The influence of swelling time, temperature, NaCl concentration and polymer micro-gel concentration on rheological properties of polymer micro-gel dispersions was studied by using a HAAKE rheometer. The results showed that with increasing swelling time and NaCl concentration, the polymer micro-gel dispersions changed from a shear-thickening fluid to a Newtonian fluid. The polymer microgel dispersion show shear-thinning in non-saline water. At higher swelling temperature, the time of the polymer micro-gel dispersion showing shear-thickening was shorter. With increasing polymer micro-gel concentration, the dispersion changed from shear-thickening to shear-thinning.

引用

页码：294 / 298

页数：5

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