流体力学数值模拟方法在增强型地热系统的应用分析 The Application Study of Fluid Dynamic Numerical Simulation Methods on Enhanced Geothermal System

增强型地热系统(EGS)作为地热资源重要的开发形式，储量十分丰富，开发利用前景广阔，所以EGS的开发利用引起国际社会和研究领域的广泛关注。本文从孔隙尺度(PSM)、岩心尺度(CSM)到场地尺度(FSM)3种流体力学模拟方法展开分析，阐述了不同数值方法在增强型地热系统的应用现状、技术优势和存在的问题。认为可将PSM方法作为基础模型，3种不同尺度的数值模拟方法有机协同地联系在一起，为基于增强型地热系统的数值模拟方法研究指明了方向。 Enhanced geothermal system (EGS) is a kind of important geothermal resources developing pat-tern which owns rich resources. EGS has been received great and popular attention from international community and research institutes since it is proposed. This paper conducts analytical research form pore scale simulation method (PSM), core scale simulation method (CSM) and filed scale simulation method (FSM) to illustrate current application status, technical advantage and existing problems. Finally, it is suggested that PSM should be used as the primary model for the EGS simulation. This work pointed out research direction for EGS simulation area.