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地下热流固耦合对EGS热开采的影响
Alternative TitleThe Thermal-Hydraulic-Mechanical Coupling Effects on Heat Extraction of Enhanced Geothermal Systems
曹文炅; 黄文博; 蒋方明
2015
Source Publication新能源进展
Issue6Pages:444-451
AbstractDuring heat extraction in enhanced geothermal systems (EGS), the reservoir porosity and permeability can be greatly affected by the multi-physical coupling of Thermal (T), Hydraulic (H), and Mechanical (M) actions. In the present work we develop a three-d
Other Abstract人工热储的孔隙率及渗透率在增强型地热系统(EGS)地下热开采过程中受温度(丁)、水力(H)、应力(M)的综合影响。本文建立了EGS热开采过程THM耦合的三维计算模型,并采用局部非热平衡假设处理液岩对流换热。对一理想的五口井EGS系统采热过程进行了THM模拟计算,分析了岩石温度、孔隙压力对岩石应力场的作用机理,进一步研究了应力场对EGS采热性能的影响。结果表明,开采过程中岩石应力场为热储内孔隙压力和温差综合作用的结果,由孔隙压力造成的岩石应力为压应力,仅集中于注入井附近,由岩石温度变化引起的热应力为拉应力,
Keyword增强型地热系统 局部非热平衡 热流固耦合 变物性
Funding Organization中科院百人计划(FJ);国家自然科学基金(51406213);NSFC-广东联合基金(U1401232);广东省自然科学基金重大基础培育项目(2014A030308001)
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/16241
Collection中国科学院广州能源研究所
热流体与先进能源系统实验室
Affiliation中国科学院广州能源研究所,广州510640
Recommended Citation
GB/T 7714
曹文炅,黄文博,蒋方明. 地下热流固耦合对EGS热开采的影响[J]. 新能源进展,2015(6):444-451.
APA 曹文炅,黄文博,&蒋方明.(2015).地下热流固耦合对EGS热开采的影响.新能源进展(6),444-451.
MLA 曹文炅,et al."地下热流固耦合对EGS热开采的影响".新能源进展 .6(2015):444-451.
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