Skip navigation

Optimum control parameters and long-term productivity of geothermal reservoirs using coupled thermo-hydraulic process modelling

Optimum control parameters and long-term productivity of geothermal reservoirs using coupled thermo-hydraulic process modelling

Aliyu, Musa D. and Chen, Hua-Peng (2017) Optimum control parameters and long-term productivity of geothermal reservoirs using coupled thermo-hydraulic process modelling. Renewable Energy, 112. pp. 151-165. ISSN 0960-1481 (Print), 1879-0682 (Online) (doi:10.1016/j.renene.2017.05.032)

[img] PDF (Author Accepted Manuscript)
17338 CHEN_Optimum_Control_Parameters_2017.pdf - Accepted Version
Restricted to Registered users only until 14 May 2019.

Download (1MB) | Request a copy
[img] PDF (Email of Acceptance)
17338 CHEN_Acceptance_Email_2017.pdf - Additional Metadata
Restricted to Repository staff only

Download (114kB) | Request a copy

Abstract

Knowing the long-term performance of geothermal energy extraction is crucial to decision-makers and reservoir engineers for optimal management and sustainable utilisation. This article presents a three dimensional, numerical model of coupled thermo-hydraulic processes, in a deep heterogeneous geothermal reservoir overlain and underlain by impermeable layers, with discrete fracture. The finite element method is employed in modelling the reservoir, after conducting a verification study to test the capability of the solver and the results obtained are in agreement with the existing models. The model is then used to investigate the responses of human control parameters (injection flow rate, fluid injection temperature, and lateral well spacing) on reservoir productivity, using different operation scenarios. The injection flow rate is found to be more efficient, concerning reservoir productivity, than the other two parameters. To this end, the study concludes that, by varying some parameters in the subsurface, reservoir productivity can be optimised efficiently. The numerical model developed provides in-depth insight to stakeholders and reservoir engineers concerning the essential parameters to control during exploration and exploitation.

Item Type: Article
Uncontrolled Keywords: Geothermal energy extraction; Coupled thermo-hydraulic; Discrete fracture; Finite element method; Parameters analyses
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Faculty / Department / Research Group: Faculty of Engineering & Science
Faculty of Engineering & Science > Department of Engineering Science
Last Modified: 22 Aug 2017 10:23
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
URI: http://gala.gre.ac.uk/id/eprint/17338

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics