上海国土资源2011，Vol.32Issue(3)：77-80,4.
增强型地热系统（EGS）的裂隙模拟方法
Modeling Approaches for Fractures in Enhanced Geothermal System（EGS）
摘要
Abstract
The concept of Enhanced Geothermal System（EGS） is proposed based on the dry hot rocks technology.Hydraulic fracturing has become one of the effective methods for establishing artificial geothermal reservoir to explore underground hot dry rock energy.In this paper,utilization of TOUGH2 code for simulating EGS is explored.We also introduce the fracture network simulation approaches in the process of hydraulic fracturing.Conceptual models for the fracture flow of an EGS are investigated.The most common models include discrete fracture,dual-porosity,dual permeability,Multiple Interacting Continua（MINC） and Effective Continuum（ECM）.These models use different schemes in treatment of fracture and matrix for numerical simulation.It is very flexible in selecting the fracture treatment methods or combination of different methods based on the permeability of the matrix rock and other properties of the fractured rock.In this paper,several effective combination conceptual models are proposed.关键词
地热能/干热岩/增强型地热系统/水力压裂/裂隙/TOUGH2Key words
geothermal energy/hot dry rock/Enhanced Geothermal System/hydraulic fracturing/fracture/TOUGH2分类
天文与地球科学引用本文复制引用
王洋,张可霓..增强型地热系统（EGS）的裂隙模拟方法[J].上海国土资源,2011,32(3):77-80,4.基金项目
美国伯克利实验室与科罗拉多矿业大学共同项目“增强型地热系统（EGS）的THMC耦合模拟研究” （）
