日用化学工业（中英文）2024，Vol.54Issue(11)：1307-1312,6.DOI:10.3969/j.issn.2097-2806.2024.11.003
海上高含水油田用无机复合调驱剂实验研究
Experimental research of inorganic composite deep profile control and oil displacement agent for offshore high water cut oil fields
摘要
Abstract
An environmentally friendly inorganic composite deep profile control and oil displacement agent was prepared for those offshore high water cut oil fields with formation water containing sodium bicarbonate.Sodium silicate and calcium chloride were used as the main agents,while polycarboxylic acid dispersant and emulsion polymer were used as assistants.The effects of the type of polycarboxylic acid dispersant and the mass concentration of emulsion polymer on the performance of the deep profile control and oil displacement agent were studied.The results showed that when the acid-ether ratio of the polycarboxylic acid dispersant was 3.7 and its molecular weight was 23 800,the electrostatic repulsion and steric hindrance from polycarboxylic acid dispersant and inorganic particles achieved an effective dispersing effect.Combined with low concentration of emulsion polymer(500 mg/L),the formulated inorganic composite deep profile control and oil displacement system could enhance the viscosity and strength of the system,and the initial viscosity was increased from 1.1 mPa·s to 5.4 mPa·s.The results showed that this inorganic composite deep profile control and oil displacement agent could increase the flow resistance,with a plugging rate of 82.3%.It could achieve online injection and had the characteristics of rapid dispersing,deep profile control and oil displacement,and low cost.This inorganic composite deep profile control and oil displacement agent had application value in high water cut oil fields.关键词
高含水油田/聚羧酸分散剂/吸附性能/空间位阻/酸醚比/乳液聚合物Key words
high water cut oil field/polycarboxylic acid dispersant/adsorption performance/steric hindrance/acid-ether ratio/emulsion polymer分类
化学化工引用本文复制引用
于萌,徐国瑞,李翔,郑玉飞,冯轩,杨劲舟,刘丰钢..海上高含水油田用无机复合调驱剂实验研究[J].日用化学工业（中英文）,2024,54(11):1307-1312,6.基金项目
国家科技重大专项(2016ZX05058) （2016ZX05058）
中海油科研项目(E-23217001) （E-23217001）
中海油众创基金项目(E-23227024.16) （E-23227024.16）
