文献类型：期刊文献

中文题名：低聚羧甲基瓜胶可再生凝胶体系的流变特性

英文题名：Rheological Properties of the Regenerable Gel Systems of Low Molecular Weight Carboxymethyl Guar Gum

作者：唐美芳[1];苏创[1];方波[1]

机构：[1]华东理工大学化学工程研究所化工流变学研究室,上海200237

年份：2011

卷号：25

期号：4

起止页码：584

中文期刊名：高校化学工程学报

外文期刊名：Journal of Chemical Engineering of Chinese Universities

收录：CSTPCD;;EI(收录号：20113614302127);Scopus;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：低聚羧甲基瓜胶;交联;再生;黏弹性;触变性;剪切变稀性

外文关键词：low molecular weight carboxymethyl guar gum; cross-linked; regeneration; visco-elasticity; thixotropy; shear thinning

摘要：低聚瓜胶压裂液在低渗透油气田开发增产中有重要的应用。今对硼砂交联低聚羧甲基瓜胶可再生凝胶体系进行了研究。考察了低聚羧甲基瓜胶浓度、硼砂浓度对凝胶形成以及再生的影响,获得了结构稳定的可再生凝胶体系。考察了不同再生次数的凝胶体系的流变特性,结果表明可再生凝胶体系具有良好的黏弹性、触变性和剪切变稀性。低聚羧甲基瓜胶可再生凝胶体系的流变曲线可用非线性共转Jeffreys模型描述,模拟值与实验值吻合良好。
Low molecular weight guar gum fracturing fluids play an important role in the enhancement of oil-gas recovery for low permeable oil-gas reservoirs.The production of the regenerable cross-linked gel systems consisting of low molecular weight carboxymethyl guar gum（LMWCMG） and borax were studied.The effects of LMWCMG concentration and borate concentration on the formation and regeneration of the gel systems were investigated,and the stable can be regenerated LMWCMG cross-linked gel systems were obtained.Furthermore,the rheological properties of the gel systems with different regeneration times were studied.The results show that the regenerable gel systems possess good visco-elasticity and thixotropy,and shear thinning properties.Non-linear co-rotational Jeffreys model can be applied to describe the viscosity curves of the regenerable LMWCMG gel systems correctly,and using the model,the calculated values are in good agreement with the experimental data.