大庆石油地质与开发2017，Vol.36Issue(4)：87-94,8.DOI:10.19597/J.ISSN.1000-3754.201702042
交联聚合物溶液成胶动态特征及其机理
GELLING DYNAMIC CHARACTERISTICS AND THEIR MECHANISMS OF THE CROSSLINKING POLYMER SOLUTION
摘要
Abstract
Long-term water flooding has formed the dominant channels in Bohai Oilfield.In view of the actual demand of the profile control,the physical simulatingmethod was adopted to carry out the researches on the gelling dynamic characteristics and their mechanisms of the crosslinking polymer solution.The achievements show that the chemical reactions between the crosslinking agent and polymer can be divided into two types:first of all,the crosslinking reactions of different-branch chains ("intramolecule") on the same molecular chain of the polymer can form "regional" net-scale molecular aggregates,the viscosity basically remains fixed macroscopically;Secondly,the crosslinking reactions among different molecular chains (“intermolecule") of the polymer can produce "regional" net-scale molecular aggregates,the macroscopic viscosity and viscoelasticity greatly increase.In the crosslinking polymer solution,the time required to undergo "intramolecular" crosslinking reaction is much less than that of the intermolecular crosslinking reaction.This feature is particularly evident in the phenolic resin crosslinking polymer solution.under the conditions of the target oil reservoir,the time of forming " regional" net-scale aggregation between the organic chromium crosslinking agent and polymer is shorter than 0.5 h,and the time of the phenolic resin is about 72 h.关键词
交联剂/聚合物/黏度/分子聚集体/渗流阻力/动态特征/机理分析Key words
crosslinking agent/polymer/viscosity/molecular aggregation/percolation resistance/dynamic characteristic/mechanism analysis分类
能源科技引用本文复制引用
李强,梁守成,吕鑫,卢祥国,曹伟佳,刘爽..交联聚合物溶液成胶动态特征及其机理[J].大庆石油地质与开发,2017,36(4):87-94,8.基金项目
国家自然基金项目“抗盐型聚合物油藏适应性及其改进方法基础研究”(51574086) （51574086）
中海石油有限公司科技课题“分级组合深部调剖技术扩大试验研究”(YXKY-2016-ZY-02). （YXKY-2016-ZY-02）
