Numerical simulation of heat production potential from hot dry rock by water circulating through a novel single vertical fracture at Desert Peak geothermal field

doi:10.1016/j.energy.2013.10.036

GIEC OpenIR > 中国科学院广州能源研究所

	Numerical simulation of heat production potential from hot dry rock by water circulating through a novel single vertical fracture at Desert Peak geothermal field
	Zeng, Yu-Chao; Wu, Neng-You; Su, Zheng; Wang, Xiao-Xing; Hu, Jian
	2013-12-15
发表期刊	ENERGY
卷号	63 页码:268-282
摘要	Based on the geological data of well DP23-1 under the EGS (enhanced geothermal system) project at Desert Peak geothermal field, we numerically investigated the heat production potential from deep HDR (hot dry rock) at this site by water circulating through a novel single vertical fracture. A technically feasible fracture aperture of 2 mm is assumed. The injected water is assumed to sweep the fracture along the diagonal and the effect of high pressure and temperature on water density is taken into considerations. The results indicate that desirable heat production efficiency can be attained under suitable fracture permeability and water production rate, however the heat and electricity production power remains a relative low situation and the water flow impedance retains a relative high level during production process. The sensitivity analysis indicates that the electricity production power mainly depends on rock thermal conductivity, water production rate and injection temperature; water flow impedance mainly depends on the fracture permeability, the rock thermal conductivity, the water production rate and the injection temperature; and energy efficiency mainly depends on the fracture permeability, the water production rate and the rock thermal conductivity. When the fracture permeability and water production rate are under reasonable conditions, the energy output and production efficiency will be optimized. However, rock contraction due to temperature reduction and water-rock interaction are not taken into considerations in this study, so the practical heat output and efficiency through one single vertical fracture needs further study in the future. (C) 2013 Elsevier Ltd. All rights reserved.
文章类型	Article
关键词	Single Vertical Fracture Heat Production Potential Circulating Water Desert Peak Geothermal Field Enhanced Geothermal System
WOS标题词	Science & Technology ; Physical Sciences ; Technology
DOI	10.1016/j.energy.2013.10.036
研究领域[WOS]	Thermodynamics ; Energy & Fuels
关键词[WOS]	WORKING FLUID ; RESERVOIRS ; EXTRACTION ; SYSTEMS ; MODELS ; ENERGY ; WELLS ; CRACK
收录类别	SCI
语种	英语
WOS类目	Thermodynamics ; Energy & Fuels
WOS记录号	WOS:000329552500029
引用统计	被引频次：106[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/10027
专题	中国科学院广州能源研究所
作者单位	Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy & Gas Hydrate, Guangzhou 510640, Peoples R China
推荐引用方式 GB/T 7714	Zeng, Yu-Chao,Wu, Neng-You,Su, Zheng,et al. Numerical simulation of heat production potential from hot dry rock by water circulating through a novel single vertical fracture at Desert Peak geothermal field[J]. ENERGY,2013,63:268-282.
APA	Zeng, Yu-Chao,Wu, Neng-You,Su, Zheng,Wang, Xiao-Xing,&Hu, Jian.(2013).Numerical simulation of heat production potential from hot dry rock by water circulating through a novel single vertical fracture at Desert Peak geothermal field.ENERGY,63,268-282.
MLA	Zeng, Yu-Chao,et al."Numerical simulation of heat production potential from hot dry rock by water circulating through a novel single vertical fracture at Desert Peak geothermal field".ENERGY 63(2013):268-282.