Seepage and Heat Transfer of Dominant Flow in Fractured Geothermal Reservoirs: A Review and Outlook
Zhiyan Liu, Yanguang Liu, Tingxin Li, Meihua Wei
Abstract
Deep geothermal reservoirs have great potential for exploitation and are characterized by high temperatures, high stress, and strong heterogeneity. However, these reservoirs contain widely and continuously distributed dominant flow channels with high permeability, predisposing these reservoirs to the formation of dominant flow, which notably decreases the efficiency of heat extraction. Focusing on the dominant flow in fractures, this study provides a definite concept, systematically reviews current studies, and puts forward suggestions for future research. It is expected that this study will serve as a reference for the sustainable, high-quality development of deep geothermal resources.
Topics & Concepts
Geothermal gradientPetroleum engineeringGeologyHeat transferFlow (mathematics)Permeability (electromagnetism)Geothermal energyCurrent (fluid)Fluid dynamicsPetrologyEnvironmental scienceMechanicsGeophysicsBiologyMembranePhysicsOceanographyGeneticsGroundwater flow and contamination studiesDam Engineering and SafetyGeothermal Energy Systems and Applications