Effect of reservoir properties on the heat extraction performance in multi-well production EGS

扫码查看

原文链接

NSTL
Taylor & Francis

外文摘要：A multi-well production enhanced geothermal system (EGS) with discrete fracture network is designed for heat extraction in this study. A thermal-hydraulic numerical simulation model is established, and the effect of reservoir properties on heat extraction is investigated. The results show that the growth rate of heat extraction efficiency will decrease as the mining time increases. The initial reservoir temperature has a positive correlation with average production temperature which provides a broad space for the use of extracted thermal energy. The variation of initial reservoir pressure has little effect on the heat extraction performance. A higher matrix permeability leads to a higher average production temperature and heat extraction ratio which prompts more working fluid flow into the matrix, the heat transfer process is enhanced. Under the conditions of this study, the preferred initial reservoir temperature is 493.15 K, the matrix permeability is 10~(?14)m~2.

外文关键词：

Enhanced geothermal systemhot dry rockmultiwell productiondiscrete fracture networkthermalhydraulic coupling modelreservoir properties

作者：

Songze Liu、Jianguang Wei、Hongliang Liu、Xuemei Liu、Bingxu Yan

展开 >

作者单位：

Department of Petroleum Engineering, Northeast Petroleum University, Daqing, China

Key Laboratory of Continental Shale Hydrocarbon Accumulation and Efficient Development (Northeast Petroleum University), Ministry of Education, Northeast Petroleum University, Heilongjiang, Daqing, China

PetroChina Changqing Oilfield No. 1 Oil Production Plant, Yanan, Shanxi, China

PetroChina Daqing Oilfield No. 1 Oil Production Plant, Daqing, Heilongjiang, China

PetroChina Tarim Oilfield Exploration and Development Research Institute, Korla, Xinjiang, China

展开 >

出版年：

2021

DOI：

10.1080/12269328.2021.1949756

Geosystem Engineering

EIESCI

ISSN：1226-9328

年,卷(期)：2021.24(3/4)

参考文献量29