中国石油大学学报（自然科学版）2017，Vol.41Issue(1)：110-117,8.DOI:10.3969/j.issn.1673-5005.2017.01.014
稠油油藏溶剂辅助蒸汽驱前缘预测模型
A mathematical model for steam frontier prediction in solvent enhanced steam flooding process
摘要
Abstract
In order to delineate the shape of the steam frontier during solvent enhanced steam flooding process,a computing method for two-component equilibrium was firstly proposed to acquire the temperature distribution of the water-steam interface,and then a whole composition model of the liquid phase was established to determine solvent enhanced steam flooding frontier.An iteration method was used to solve the model and the critical parameters of the interface can be calculated.The results of a case study for a specific heavy oil reservoir show that the steam frontier of the solvent enhanced steam flooding process is mainly of a wedge-shape,and heavier solvents perform better than lighter ones in terms of improving vertical sweep efficiency when the steam injecting rate is low,while the lighter solvents have a better capability to overcome the gravity induced steam override problem than the heavier ones when the injecting rate is very high.关键词
溶剂辅助蒸汽驱/注蒸汽/蒸汽前缘/相态平衡/解析模型Key words
solvent enhanced steam flooding/steam injection/steam frontier/phase equilibrium/analytic model分类
能源科技引用本文复制引用
刘昊,程林松,黄世军,李春兰,张忠义,贾品..稠油油藏溶剂辅助蒸汽驱前缘预测模型[J].中国石油大学学报（自然科学版）,2017,41(1):110-117,8.基金项目
国家重大专项(2016ZX05012-005-004,2016ZX05025-004-002) （2016ZX05012-005-004,2016ZX05025-004-002）
