摘要
稠化剂凝胶化过程对压裂成功十分重要。本文应用光学微流变仪研究了不同稠化剂溶液凝胶化过程的微流变学性质。考察了稠化剂和交联剂浓度、交联温度等对凝胶化过程微流变学性质(如弹性因子等)的影响,获得了凝胶化过程中弹性因子随时间的变化曲线。应用4-参数本征交联流变动力学方程确切表征稠化剂溶液交联凝胶化过程中弹性因子变化曲线。说明微流变学是研究稠化剂溶液交联凝胶化本征流变动力学的有效方法。
The gelation process of fracturing thickener solution is very important for success of fracturing operations.The microrheological properties on gel formation processes of different thickeners solutions have been studied with optical microrheometer.The effects of concentrations of thickeners solution and crosslinking agent,temperature on the microrheological properties(such as Elastic Index,etc.) during gelation process were investigated.The Elastic Index(EI) curves during gelation processes for different thickeners solutions were obtained.A 4-parameter intrinsic rheokinetics equation was applied to describe the EI curves during cross-linking gel formation process of thickeners solutions correctly.It is proved that microrheology is useful to study the intrinsic rheokinetics of static crosslinking process of thickener solution.
引文
[1]Abdala,A.A.;Amin,S.;Van-Zanten,J.H.;Khan,S.A..Langmuir,2015,31(13):3944.
[2]Inoue,M.;Yoshimori,A..Journal of Molecular Liquids,2014,200(SI):81.