Estimation of cement thermal properties through the three-phase model with application to geothermal wells

Ichim, A., Teodoriu, C. and Falcone, G. (2018) Estimation of cement thermal properties through the three-phase model with application to geothermal wells. Energies, 11(10), 2839. (doi: 10.3390/en11102839)

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Abstract

Geothermal energy has been used by mankind since ancient times. Given the limited geographical distribution of the most favorable resources, exploration efforts have more recently focused on unconventional geothermal systems targeting greater depths to reach sufficient temperatures. In these systems, geothermal well performance relies on efficient heat transfer between the working fluid, which is pumped from surface, and the underground rock. Most of the wells designed for such environments require that the casing strings used throughout the well construction process be cemented in place. The overall heat transfer around the wellbore may be optimized through accurate selection of cement recipes. This paper presents the application of a three-phase analytical model to estimate the cement thermal properties. The results show that cement recipes can be designed to enhance or minimize heat transfer around wellbore, extending the application of geothermal exploitation.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Falcone, Professor Gioia
Authors: Ichim, A., Teodoriu, C., and Falcone, G.
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy
Journal Name:Energies
Publisher:MDPI
ISSN:1996-1073
ISSN (Online):1996-1073
Published Online:20 October 2018
Copyright Holders:Copyright © 2018 The Authors
First Published:First published in Energies 11(10): 2839
Publisher Policy:Reproduced under a Creative Commons License

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