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Energy Geomechanics
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Energy Geomechanics

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "H: Geo-Energy".

Deadline for manuscript submissions: closed (31 August 2024) | Viewed by 6189

Special Issue Editors

Prof. Dr. Alireza Nouri

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Guest Editor
Department of Civil & Environmental Engineering, University of Alberta, Edmonton, AB, Canada
Interests: geomechanics; petroleum engineering
Special Issues, Collections and Topics in MDPI journals
Dr. Saman Azadbakht

E-Mail Website
Co-Guest Editor
Petroleum Systems Engineering, University of Regina, Regina, Canada
Interests: experimental and numerical modeling of sand production and hydraulic fracturing; caprock integrity assessment for CO2 storage and SAGD projects; wellbore stability/integrity analysis; geothermal energy production; application of data analytics techniques in drilling and production optimization; energy economics; energy policy and market analysis

Special Issue Information

Dear Colleagues,

Greetings from the Guest Editor of the Special Issue of Energies on Energy Geomechanics.

We cordially invite you to submit your high-quality manuscripts to the Special Issue of Energies on Energy Geomechanics. This Special Issue focuses on rock mechanical aspects of energy engineering, encompassing petroleum engineering and alternative energy sources, such as geothermal, hydrogen, and nuclear energy.

Topics include, but are not limited to, the geomechanical aspects of:

  • conventional and unconventional petroleum wellbores from wellbore construction to abandonment;
  • conventional and unconventional petroleum reservoirs and surrounding strata during the hydrocarbon production;
  • subsurface disposal of liquid waste and brine;
  • CO2 sequestration;
  • underground storage of energy, including hydrogen, synthetic methane, heat, compressed air, and natural gas;
  • near-surface and deep geothermal energy production;
  • nuclear waste management.

The manuscript may be a review paper or may be based on applied and fundamental studies using physical model testing, mathematical modelling, or field case studies.

We look forward to receiving your manuscripts for this Special Issue.

Dr. Alireza Nouri
Dr. Saman Azadbakht
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Energies is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • energy
  • geomechanics
  • subsurface waste and brine disposal
  • CO2 sequestration
  • underground energy storage
  • hydrogen energy
  • synthetic methane storage
  • heat storage
  • compressed air storage
  • natural gas storage
  • shallow geothermal
  • deep geothermal
  • nuclear waste management
  • sand production
  • hydraulic fracturing
  • wellbore stability
  • borehole breakouts
  • caprock integrity
  • reservoir geomechanics
  • wellbore integrity
  • land subsidence due to reservoir depletion
  • surface heave in thermal operations
  • fines migration
  • borehole-completion interactions
  • in situ stress assessments
  • geomechanics of shale oil/gas reservoirs
  • oil sands geomechanics
  • geomechanics of thermal wells
  • surface heave in energy storage

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (3 papers)

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Research

17 pages, 3206 KiB  
Article
Numerical Simulation of Geothermal Energy Development at Mount Meager and Its Impact on In Situ Thermal Stress
by Yutong Chai, Zhuoheng Chen and Shunde Yin
Energies 2024, 17(14), 3466; https://doi.org/10.3390/en17143466 - 14 Jul 2024
Cited by 1 | Viewed by 1119
Abstract
The Meager Mountain Geothermal Project stands as one of the pioneering geothermal energy initiatives in its early stages of resource development. Despite its abundant geothermal heat resources, no prior studies have systematically evaluated the potential of implementing coaxial borehole heat exchangers on site. [...] Read more.
The Meager Mountain Geothermal Project stands as one of the pioneering geothermal energy initiatives in its early stages of resource development. Despite its abundant geothermal heat resources, no prior studies have systematically evaluated the potential of implementing coaxial borehole heat exchangers on site. This study addresses this research gap by presenting a comprehensive heat transfer model for an underground closed-loop geothermal system utilizing a single coaxial well. Finite element analysis incorporated fluid and solid heat transfer, as well as solid mechanics. The results obtained facilitated the construction of the temperature and thermal stress profiles induced by the cooling effects resulting from years of heat extraction. After 25 years of operation, the outlet temperature has reached approximately 74 °C, and the maximum radial tensile thermal stress amounts to ~47 MPa. Furthermore, the analysis demonstrates that higher fluid velocities contribute to more perturbed temperature and stress distributions. The study attained maximum thermal and electric power outputs of 208 kW and 17 kW, respectively. This research also underscores the significant impact of geothermal gradient and well length on BHE design, with longer wells yielding more power, especially at higher injection velocities. Full article
(This article belongs to the Special Issue Energy Geomechanics)
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25 pages, 8528 KiB  
Article
A Preliminary Analysis of In-Situ Stress at Mount Meager by Displacement Discontinuity Method with Topography and Tectonics Considered
by Yutong Chai, Zhuoheng Chen and Shunde Yin
Energies 2023, 16(3), 1397; https://doi.org/10.3390/en16031397 - 30 Jan 2023
Cited by 2 | Viewed by 2223
Abstract
Geothermal energy is one of the most stable and clean solutions to replace the traditional fossil fuel energy resource. The South Meager geothermal prospect, located in southwestern British Columbia, contains large geothermal energy resources due to recent volcanic activities. The in-situ stress state [...] Read more.
Geothermal energy is one of the most stable and clean solutions to replace the traditional fossil fuel energy resource. The South Meager geothermal prospect, located in southwestern British Columbia, contains large geothermal energy resources due to recent volcanic activities. The in-situ stress state in the prospective area that influences the characteristics of fractures, thus affecting productivity, remains unknown. In this paper, we present a preliminary analysis of in-situ stress induced by gravitational load at Mount Meager, with tectonics considered. The in-situ stress model was constructed with 3D displacement discontinuity method based on the site-specific topography. The 3D model reveals that the impact of topography is more prominent in shallow and deep regions, while the impact of tectonics is prominent in an intermediate depth range. With the implementation of inferred tectonic stress state, normal faulting regime takes place at shallow depth (<800 m); at the intermediate depth (800–1600 m), the transition of faulting regime from normal to strike-slip and then to thrust occurs; at deeper depth (>1800 m), the fault type becomes normal again. The orientations of major and minor induced horizontal stresses transition from varying with local topography to perfectly aligned with the orientations of major and minor horizontal tectonic stresses at NWN-SES 330° and NEE-SWW 60°, respectively, as depth increases. Full article
(This article belongs to the Special Issue Energy Geomechanics)
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11 pages, 3340 KiB  
Article
Measuring Interparticle Friction of Granules for Micromechanical Modeling
by Yuan Li, Dave Chan and Alireza Nouri
Energies 2022, 15(11), 3967; https://doi.org/10.3390/en15113967 - 27 May 2022
Cited by 2 | Viewed by 1851
Abstract
The aim of this paper is to develop an experimental procedure to measure contact friction between granular particles. The contact friction is a micro-property needed in the micromechanical modeling of a granular medium. The proposed method can measure the interparticle friction of idealized [...] Read more.
The aim of this paper is to develop an experimental procedure to measure contact friction between granular particles. The contact friction is a micro-property needed in the micromechanical modeling of a granular medium. The proposed method can measure the interparticle friction of idealized spherical particles using the conventional direct shear apparatus in soil testing. In preparation for the test, the test specimen is made of four steel balls embedded halfway in a sulfaset paste plate positioned in a statically determinant configuration to provide point contacts among the steel balls. The upper half of the shear box contains one steel ball, which is supported by three steel balls in the lower shear box, ensuring contact points at all times during the test. Shear force and shear displacement are measured under a specific normal force during the test. An analytical equation is developed based on the geometrical configuration of the balls to calculate the interparticle friction angle. The test is shown to be repeatable, and the calculated interparticle friction angle agrees well with experimental measurements with a high degree of accuracy and consistency. Full article
(This article belongs to the Special Issue Energy Geomechanics)
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