文献类型：期刊文献

英文题名：Rheology and delayed micellar formation process of novel tetrameric cationic surfactant fracturing fluid

作者：Wu, Huinan[1];Fang, Bo[1];Yu, Luyao[1];He, Jinlan[1];Xu, Wenting[1];Xin, Hui[1];Tian, Zhenrui[1];Han, Xiaoyang[1];Lu, Yongjun[2];Xu, Ke[2]

机构：[1]East China Univ Sci & Technol, Res Ctr Chem Engn, Shanghai Key Lab Multiphase Mat Chem Engn, Lab Chem Engn Rheol, Shanghai, Peoples R China;[2]Petro China, Langfang Filial Res Inst Petr Explorat & Dev, Langfang, Peoples R China

年份：2023

卷号：26

期号：6

起止页码：827

外文期刊名：JOURNAL OF SURFACTANTS AND DETERGENTS

收录：;EI(收录号：20233214508422);WOS:【SCI-EXPANDED(收录号:WOS:001042578600001)】；

基金：ACKNOWLEDGMENTS This research was funded by the China's National Science and Technology Major Project, project number 2017ZX05023003, the Petrochina Science and Technology Management Department Project, project number 2020B-4120, and the National Natural Science Foundation of China, grant number 51834010.

语种：英文

外文关键词：delay micellar formation process; rheology; tetrameric cationic surfactant; VES fracturing fluid; wormlike micelles

摘要：To enrich the clean fracturing fluid system with high temperature resistance, a novel tetrameric cationic surfactant (TET) was developed and used as a thickener and mixed with different concentrations of sodium salicylate (NaSal) to obtain a new clean fracturing fluid. The flow curves, thixotropy, viscoelasticity, temperature resistance property, and proppant-suspending capacity were further investigated. The rheological study showed that the Casson model could be used to accurately describe the flow curve of TET/NaSal micelle solutions and the addition of NaSal improved the thixotropy and viscoelasticity of surfactant solution. The optimal mass ratio of TET/NaSal solution was 5/1.5 wt%, and it had good proppant-suspending capacity. What is more, the retained viscosity of TET/NaSal (5/1.5 wt%) solution was 52.27 mPa & BULL;s after shearing at 140 & DEG;C and 100.0 s(-1) for 65 min, which met industry requirements (viscosity > 20 mPa & BULL;s) of viscoelastic surfactant fracturing fluids. Moreover, the combination of 10 wt% TET aqueous solution with pH value of 8.51 and 2.6 wt% salicylic acid (HSal) suspension of the same mass significantly delayed micellar formation. The four-parameter rheo-kinetics model can be used to fit the viscosity curves of micellar formation, which provided the rheological basis for the study of delayed viscoelastic micellar formation.