Effect of AMPS(2-acrylamido-2-methylpropane sulfonic acid) content on the properties of polymer gels

作     者：Tian-Ci Zhang Ji-Jiang Ge Hao Wu Hong-Bin Guo Bao-Lei Jiao Zhen Qian Tian-Ci Zhang;Ji-Jiang Ge;Hao Wu;Hong-Bin Guo;Bao-Lei Jiao;Zhen Qian

作者机构：School of Petroleum EngineeringChina University of Petroleum(East China)Qingdao266580ShandongChina Petroleum Engineering InstituteNorthwest Branch of SinopecUrumqi830011XinjiangChina 

出 版 物：《Petroleum Science》 (石油科学（英文版）)

年 卷 期：2022年第19卷第2期

页      面：697-706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 from the Major Scientific and Technological Project of CNPC under grant number ZD2019-183-007 Sinopec Northwest Company of China for the financial support(34400007-17-ZC06070095) 

主　　题：Gels 2-Acrylamido-2-methylpropane sulfonic acid Enhanced oil recovery Hydrolysis Syneresis 

摘      要：The BST oilfield in the northwestern Taklamakan Desert is a fractured carbonate reservoir,but issues of water breakthrough are becoming increasingly severe with the development of water ***,the high-temperature and high-salt conditions(130°C,71695 mg/L)of the BST oilfield pose challenges for the development of plugging *** this study,the effects of 2-acrylamido-2-methylpropane sulfonic acid(AMPS)content on AM/AMPS copolymers and gels were studied through viscosity measurements,nuclear magnetic resonance(NMR),and cryo-scanning electron microscope(Cryo-SEM).Moreover,the AMPS stabilization mechanism of the polymers and gels was *** and salt-tolerant gel systems were developed,and their gelation properties,thermal stability,injection capacity,and plugging ability were *** results showed inconsistencies between the effects of AMPS content on the polymers and *** the polymers,the thermal stability increased with increased AMPS content in the ***,excessive AMPS content resulted in poor gelation and low *** developed gel systems with S30 polymer(AMPS content is approximately 26%)exhibited excellent thermal stability,controllable gelation time,good injection capacity,and plugging *** field application results indicated that most production wells had a positive response,with reduced water-cut and increased daily oil production.