An Approximate Solution for Predicting the Heat Extraction and Preventing Heat Loss from a Closed-Loop Geothermal Reservoir
Joint Authors
Wu, Bisheng
Feng, Guanhong
Ma, Tianshou
Chen, Zuorong
Zhang, Xi
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-17, 17 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-08-16
Country of Publication
Egypt
No. of Pages
17
Main Subjects
Abstract EN
Approximate solutions are found for a mathematical model developed to predict the heat extraction from a closed-loop geothermal system which consists of two vertical wells (one for injection and the other for production) and one horizontal well which connects the two vertical wells.
Based on the feature of slow heat conduction in rock formation, the fluid flow in the well is divided into three stages, that is, in the injection, horizontal, and production wells.
The output temperature of each stage is regarded as the input of the next stage.
The results from the present model are compared with those obtained from numerical simulator TOUGH2 and show first-order agreement with a temperature difference less than 4°C for the case where the fluid circulated for 2.74 years.
In the end, a parametric study shows that (1) the injection rate plays dominant role in affecting the output performance, (2) higher injection temperature produces larger output temperature but decreases the total heat extracted given a specific time, (3) the output performance of geothermal reservoir is insensitive to fluid viscosity, and (4) there exists a critical point that indicates if the fluid releases heat into or absorbs heat from the surrounding formation.
American Psychological Association (APA)
Wu, Bisheng& Ma, Tianshou& Feng, Guanhong& Chen, Zuorong& Zhang, Xi. 2017. An Approximate Solution for Predicting the Heat Extraction and Preventing Heat Loss from a Closed-Loop Geothermal Reservoir. Geofluids،Vol. 2017, no. 2017, pp.1-17.
https://search.emarefa.net/detail/BIM-1155351
Modern Language Association (MLA)
Wu, Bisheng…[et al.]. An Approximate Solution for Predicting the Heat Extraction and Preventing Heat Loss from a Closed-Loop Geothermal Reservoir. Geofluids No. 2017 (2017), pp.1-17.
https://search.emarefa.net/detail/BIM-1155351
American Medical Association (AMA)
Wu, Bisheng& Ma, Tianshou& Feng, Guanhong& Chen, Zuorong& Zhang, Xi. An Approximate Solution for Predicting the Heat Extraction and Preventing Heat Loss from a Closed-Loop Geothermal Reservoir. Geofluids. 2017. Vol. 2017, no. 2017, pp.1-17.
https://search.emarefa.net/detail/BIM-1155351
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1155351