石油化工2024，Vol.53Issue(3)：368-373,6.DOI:10.3969/j.issn.1000-8144.2024.03.009
疏水缔合聚合物强化泡沫室内实验研究
Laboratory experimental study on hydrophobic associated polymer enhanced foam
摘要
Abstract
Due to the increasing heterogeneity of heavy oil reservoirs in multiple huff and puff cycles,the plugging strength of the traditional nitrogen foam cannot meet the requirements of reservoir profile control.Therefore,hydrophobic associated polymer PDR-1 was used to strengthen nitrogen foams.The strengthening mechanism was clarified,and the stability,plugging strength,heterogeneity improvement performance and oil displacement performance of the enhanced foam were evaluated.The experimental results show that the PDR-1 can form mixed micelles with the high-temperature foaming agent FCY-2,which has the tendency of aggregation to the gas-liquid interface.At the same time,the viscoelasticity of the liquid phase and gas-liquid interface of foam is greatly improved by bonding effect,thus extending the half-life of the enhanced foam liquid evolution.The enhanced foam has excellent performance in high-strength plugging and improving heterogeneity,thus improving oil displacement effect.Under the temperature of 100℃,the resistance factor is 466.2,and the comprehensive oil displacement efficiency is increased by 29.43 percentage points.With the increase of temperature,the ability of PDR-1 to improve the performance of foam is reduced.The study of hydrophobic associated polymer enhanced foam can provide technical support for high-quality development of heavy oil.关键词
强化泡沫/疏水缔合聚合物/黏弹性/泡沫稳定性/封堵性能Key words
enhanced foam/hydrophobic associated polymer/viscoelasticity/foam stability/plugging performance分类
能源科技引用本文复制引用
管雪倩,于田田,徐宏光,刘廷峰,翟勇,王涛..疏水缔合聚合物强化泡沫室内实验研究[J].石油化工,2024,53(3):368-373,6.基金项目
国家自然科学基金企业创新发展联合基金项目(U20B6003). （U20B6003）
