Numerical simulation of heat production potential from hot dry rock by water circulating through two horizontal wells at Desert Peak geothermal field

In this work, heat production potential from hot dry rock by water circulating through two horizontal wells was numerically investigated based on the geological data of well DP23-1 under the enhanced geothermal system (EGS) project at Desert Peak geothermal field. The results indicate that the desir...

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Bibliographic Details
Published in:Energy
Main Authors: Zeng, Yu-Chao, Su, Zheng, Wu, Neng-You
Format: Article in Journal/Newspaper
Language:English
Published: 2013
Subjects:
Two Horizontal Wells
Heat Production
Hot Dry Rock
Water Circulating
Enhanced Geothermal System
Desert Peak
Science & Technology
Physical Sciences
Technology
Thermodynamics
Energy & Fuels
GAS-PRODUCTION
POROUS-MEDIA
PUFF METHOD
PRODUCTION BEHAVIOR
HYDRATE DEPOSITS
METHANE HYDRATE
WORKING FLUID
SYSTEMS EGS
RESERVOIRS
ENERGY
Methane hydrate
Online Access:http://ir.giec.ac.cn/handle/344007/10086
https://doi.org/10.1016/j.energy.2013.04.055
Description
Summary:In this work, heat production potential from hot dry rock by water circulating through two horizontal wells was numerically investigated based on the geological data of well DP23-1 under the enhanced geothermal system (EGS) project at Desert Peak geothermal field. The results indicate that the desirable electricity production power and energy efficiency can be obtained under suitable reservoir permeability, water production rate and injection temperature; meanwhile water flow impedance remains at a relative lower level. The sensitivity analysis indicates that the electricity production power mainly depends on the water production rate and the injection temperature; the water flow impedance mainly depends on the reservoir permeability, water production rate and injection temperature; the energy efficiency mainly depends on the reservoir permeability and the water production rate. The heat production performance will be improved when the reservoir permeability, the water production rate and the injection temperature are under reasonable conditions. However, this study is based on that the fractured reservoir is equivalent to a homogeneous porous medium and there is no water loss in the reservoir, so the practical energy output and efficiency of water circulating through two horizontal wells at Desert Peak geothermal field needs further study in the future. (C) 2013 Elsevier Ltd. All rights reserved.

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