Effect of associative crosslinking agent on rheological properties of multiple copolymer

被引：0

作者：

Wang, Meng ^{[1
,2
]}

Liu, Tongyi ^{[1
,2
]}

Wei, Jun ^{[1
,2
]}

Lin, Bo ^{[2
]}

Dai, Xiulan ^{[2
]}

Chen, Guangjie ^{[2
]}

机构：

[1] College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu,Sichuan,610500, China

[2] Chengdu Baichun Petroleum Technology Company Limited, Chengdu,Sichuan,610500, China

来源：

Jingxi Huagong/Fine Chemicals | 2020年 / 37卷 / 01期

关键词：

Acrylic monomers - Amides - Chlorine compounds - Creep - Fluid structure interaction - Fracturing fluids - Non Newtonian flow - Oil fields - Viscosity;

D O I：

10.13550/j.jxhg.20190482

中图分类号：

学科分类号：

摘要：

Amphiphilic polymer ZW-12 was synthesized by aqueous solution polymerization of acrylamide (AM), acryloxyethyl trimethylammonium chloride (DAC), 2-acrylamide-2methyl propanesulfonic acid (AMPS) and dodecyl dimethyl allyl ammonium chloride. Octadecyl dihydroxyethyl betaine was used as associative crosslinking agent M-1 to investigate the effect of M-1 with different concentrations on the rheological properties of ZW-12 solution by RS6000 rheometer and the mesostructure of the fluid was observed by SEM. The results showed that both the thixotropic and creep properties of the composite system changed significantly when the content of M-1 reached 0.300% of the mass of ZW-12. In the thixotropic experiment, stress overshoot was generated and thixotropic ring area was increased greatly. Burger model was used to fit the creep experiment, and it was found that when the content of M-1 was greater than 0.300% of the mass of ZW-12, the Maxwell spring modulus G0 increased to 0.51 Pa. SEM result verified the inference that the fluid structure changed before and after addition of 0.300% M-1. Cross equation and Jeffery model were used to fit the viscosity and shear curves of the fluid at different contents of M-1. The results revealed that the combined influence of M-1 on viscosity and modulus of the fluid resulted in the change of its non-newtonian behavior. © 2020, Editorial Office of FINE CHEMICALS. All right reserved.

引用

页码：174 / 179