西南石油大学学报（自然科学版）2012，Vol.34Issue(1)：97-102,6.DOI:10.3863/j.issn.1674-5086.2012.01.015
火烧油层注气加热过程的模拟计算研究
Simulation of Gas Injection-Heating Process of In Situ Combustion
摘要
Abstract
It is necessary to optimize the parameters of gas injection heating during the gas injection-heating process in situ combustion. A transient model is proposed to simulate the flow and the heat exchange of air in the well tube and oil reservoirs including the mixing process of air and oil reservoirs, change of component and phase state such as evaporation of hot water and condensation of cold wet air, the heat exchange among different oil reservoirs and rock. A solving method based on Rung-Kutta and a simulation program is programmed. After the verification of simulating injection. This mathematical model and its solving method are applied to the simulation and monitoring of gas injection heating process in situ combustion at actual oil field. It was found that the extension of heating zone is slow (radius of heating zone is less than 0.6 m after a 5-day injection) and greatly influenced by the moisture content of oil reservoir, and the temperature of it is almost constant and determined by the power of electric heater and gas flow rate. The power of electric heater and gas flow rate should keep in a stable state during the heating process.关键词
火烧油层/注气加热/监测系统/数学模型/龙格库塔法Key words
in situ combustion: gas injection-heating/ monitoring system/ mathematical model/ Rung-Kutta method分类
能源科技引用本文复制引用
潘竟军,周杨平,陈龙,马远乐..火烧油层注气加热过程的模拟计算研究[J].西南石油大学学报（自然科学版）,2012,34(1):97-102,6.基金项目
国家科技专项项目"火烧驱油技术研究与现场试验"(2008ZX0512-003). （2008ZX0512-003）
