长江大学学报（自然科学版）2026，Vol.23Issue(1)：50-58,9.
稠油油藏气体辅助蒸汽驱参数优化研究
Study on parameters optimization of gas-assisted steam flooding in heavy oil reservoirs
摘要
Abstract
This study focuses on the challenges of low steam utilization efficiency and inadequate parameter optimization encountered during the late phase of steam flooding development in heavy oil reservoirs.Taking Block B of Y Oilfield as an example,this paper discusses the feasibility and effectiveness of gas-assisted steam flooding.A comparative numerical simulation was conducted for CO2-assisted steam flooding,N2-assisted steam flooding and CO2+N2 dual-phase assisted steam flooding to identify the optimal gas-assisted steam flooding method.On this basis,key factors such as the steam/gas injection rate,steam quality,and other related parameters were further optimized,and the optimal parameter combination was obtained through orthogonal experiments.The results indicate that among the three gas-assisted steam flooding methods,CO2-assisted steam flooding exhibits the best performance.The optimal parameter combination was as follows:CO2 injection volume of 0.25 PV,gas injection rate of 2.25×103 m3/d,steam injection rate of 150 m3/d,steam dryness factor of 80%,and the ratio of CO2 to steam mass is 15.Under this optimized conditions,the oil production and recovery factor of the block increased by 2.84×104 t and 9.37 percentage points,respectively,compared with pure steam flooding,demonstrating a significant improvement in production performance.关键词
稠油/气体辅助蒸汽驱/参数优化/正交实验/数值模拟Key words
heavy oil/gas-assisted steam flooding/parameters optimization/orthogonal experiment/numerical simulation分类
能源科技引用本文复制引用
喻高明,陈波,辛显康,雷泽萱,常文龙,张锐,汪伟..稠油油藏气体辅助蒸汽驱参数优化研究[J].长江大学学报（自然科学版）,2026,23(1):50-58,9.基金项目
国家科技重大专项"CO2驱大幅度提高采收率与长期封存技术"(2024ZD1406600),"CO2驱长期安全封存和监测关键技术及装备研究"(2024ZD1406604). （2024ZD1406600）
