井筒注汽过程传热分析及热损计算方法研究

稠油开采注汽过程中,蒸汽沿井筒流动,其传热包括了导热、对流及辐射三种形式。运用传热学、热力学及流体力学等学科知识,对井筒传热过程进行了分析,在此基础上建立了井筒传热综合分析模型,并确定了求解方法、编制了计算软件。这一研究成果对优化井筒结构、降低井筒热损研究,奠定了基础

Analysis on Heat Transfer and Steam Injection in the Wellbore and Calculation on Heat Loss

During the process of steam injection for heavy oil, the steam flows in the well bore have three types: heat transfer, the conduction, convection and radiation. This paper analyzed the heat transfer process in well-bore based on heat transfer, thermodynamics, hydromechanics and forth, and established the hereby-comprehensive mathematical model for the analysis of heat transfer. In addition, its solution method and calculating software is presented in this paper. The research offers theoretical method for heat loss of steam injection.