The effect of betaine surfactants on the association behavior of associating polymer

作     者：Ji-Jiang Ge Tian-Ci Zhang Yi-Ping Pan Xuan Zhang Ji-Jiang Ge;Tian-Ci Zhang;Yi-Ping Pan;Xuan Zhang

作者机构：College of Petroleum EngineeringChina University of Petroleum(East China)Qingdao266580ShandongChina 

出 版 物：《Petroleum Science》 (石油科学（英文版）)

年 卷 期：2021年第18卷第5期

页      面：1441-1449页

核心收录：

学科分类：0820[工学-石油与天然气工程] 08[工学] 082002[工学-油气田开发工程] 

基　　金：Financial support by the Major Scientific and Technological Projects of CNPC under Grant(No.ZD 2019-183-007) 

主　　题：Betaine surfactant Associating polymer Surface tension Viscosity Intermolecular association 

摘      要：The interfacial properties and rheological behavior of surfactant/polymer complex systems were measured to investigate the association behavior of the associating *** with the pure surfactant solution,there are two inflection points in the surface tension curve for the surfactant/polymer complex *** two inflection points are dependent on the surfactant type and polymer *** effect of surfactant on the rheological behavior of polymer can be divided into two ***,the addition of short-chain betaine surfactant is detrimental to the viscosity of polymer solution due to the electrostatic shielding ***,long-chain betaine surfactant also reduces the viscosity of polymer solutions at low ***,when the concentration of the long-chain betaine surfactant is relatively high,the long-chain betaine surfactant could form worm-like micelles that promote the intermolecular association and thus increase the number of associating junctions,thereby resulting in the augmentation of *** it is necessary to apply the long-chain betaine surfactant to build the polymer/surfactant flooding *** interaction model between surfactant and polymer is proposed,which is different from the traditional‘Three-Region Model’.