乙醇胺对聚丙烯酰胺溶液黏度的影响  

EFFECT OF ETHANOLAMINE ON THE VISCOSITY OF POLYACRYLAMIDESOLUTION

作　　者：郭淑凤[1] 石静[1] 王红艳[1] 潘斌林[1] 范文永[2] Guo Shufeng Shi Jing Wang Hongyan Pan Binlin Fan Wenyong(Exploration and Development Research Institute of Shengli Oil field Company, SINOPEC, Dongying 257015, Shandong, China Drilling Engineering Technology Company, Shengli Petroleum Engineering Company, SINOPEC, Dongying 257064, Shandong, China)

机构地区：[1]中国石化胜利油田分公司勘探开发研究院,山东东营257015 [2]中国石化胜利石油工程有限公司钻井工程技术公司,山东东营257064

出　　处：《精细石油化工》2017年第4期35-38,共4页Speciality Petrochemicals

基　　金：国家科技重大专项基金(编号2016ZX05011)

摘　　要：针对如何提高聚丙烯酰胺(HPAM)黏度的问题,考察了有机碱乙醇胺对HPAM黏度和渗流特征的影响。实验发现,乙醇胺对HPAM具有明显的增黏效果,随着热老化时间的延长,增黏效果越显著;乙醇胺可以提高HPAM的阻力系数和残余阻力系数,乙醇胺-HPAM体系具有更优的流度控制能力。此外,通过对乙醇胺-HPAM体系开展微量热,剪切流变和冷冻蚀刻电镜研究,发现乙醇胺与HPAM分子在溶液中存在较强的分子间相互作用,HPAM分子之间借助有机碱反离子形成松散的网络结构导致体系黏度增加。Aimed to increase the visocosity of polyacrylamide （HPAM） solutions, influences of organic alkalineethanolamine on viscosity and percolation of HPAMwere investigated. Our results showed significant viscosity increasing effect when ethanolamine was added into HPAM solutions. Such effect becomesremarkablewith thermal aging. The ethanolamine-HPAM system exhibits higher resistance coefficient and residual resistance coefficient than single HPAM system, implying that the mobility control can be improved for ethanolamine-HPAM system. The interaction mechanism between HPAM and ethanolamine was studied using microealorimetry, shear rheology and freezeetching transmission electron microscopymethods. Strong intermolecular interaction was found. We proposed that loose network structure formed between HPAM molecules through organic alkalinecounter-ions leads to the viscosity increasing.

关 键 词：乙醇胺 聚丙烯酰胺 化学驱 增黏 渗流特征 相互作用 

分 类 号：TE39[石油与天然气工程—油气田开发工程]