文献类型：期刊文献

英文题名：Preparation and rheological properties of three-component hydrophobically associating copolymer emulsion (QHAE)

作者：Xu, Ke[1];Qin, Weiwei[2];Liu, Fuchuan[3];Fang, Bo[2];Shi, Yang[1];Li, Yang[1];Dong, Jingfeng[4];Yu, Luyao[2]

机构：[1]PetroChina Res Inst Petr Explorat & Dev, Beijing 100083, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem Engn, Shanghai 200237, Peoples R China;[3]Southwest Petr Univ, Sch Chem & Chem Engn, Chengdu 610500, Peoples R China;[4]Xinjiang Oilfield Co, Res Inst Engn & Technol, Karamay 834000, Xinjiang, Peoples R China

年份：2022

卷号：638

外文期刊名：COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS

收录：;EI(收录号：20220411491298);WOS:【SCI-EXPANDED(收录号:WOS:000745076000001)】；

基金：This work was financially supported by the National Natural Science Foundation of China (51834010) , China's National Science and Tech-nology Major Project (Project Number: 2017ZX05023003) and the PetroChina Science and Technology Management Department Project (Project Number: 2020B-4120) .

语种：英文

外文关键词：Hydrophobic Association; Polymer emulsion; Rheology; Microstructure

摘要：Four types of QHAE with excellent stability and solubility have been prepared in this study, which can be widely used in oil and gas production. Among them, QHAE-3 is a new hydrophobically associating copolymer containing fluorine with a molecular weight of 7.9 million, which has good thickening performance and thermal stability. The steady-state shear viscosity of the 0.1% QHAE-3 water solution is 3.9mPa.s. QHAE can be used in reservoirs up to 225 degrees C. The four-parameter cross rheological model can be used to accurately describe the flow curve of the QHAE solution, indicating that it is a pseudoplastic fluid. The viscoelastic study results show that QHAE solution has a wide linear viscoelastic domain (Upsilon=0.1-100%). There is no thixotropy in QHAE solution at different concentrations and its structure has strong recovery ability. QHAE is extremely quick to dissolve in water in just 5 min. The microstructure analysis on QHAE confirmed its structural similarity and its hydrophobically associating effect is significant. QHAE has broad application prospects in oil and gas development.