Thermoelastic fracturing and buoyancy-driven convection: Surprising sources of longevity for EGS circulation Article Swipe
To maximize value from an EGS system, engineers need to optimize flow rate, well spacing, and well configuration. Numerical simulations yield interesting and surprising results regarding the effect of coupled processes on long term thermal performance. Thermoelastic fracture opening and propagation can have a significant negative effect on the uniformity of flow. On the other hand, interactions between fracture opening and buoyancy driven fluid circulation cause downward fracture propagation during long-term circulation that greatly improves the thermal longevity of the system. Passive inflow control design can significantly mitigate the negative effect of thermoelastic fracture opening on flow uniformity, while maintaining the positive effects of thermoelastic fracture opening and propagation on flow rate and thermal longevity. Overall, simulations suggest that an EGS doublet with 8000 ft laterals at 475' F, using inflow control at the production well, could sustain electricity generation rates of 8 to 10 MWe for more than 30 years. Without inflow control, 6 to 8 MWe over 30 years is possible; however, there is greater risk of uncontrolled thermal breakthrough.
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Metadata
- Type
- preprint
- Language
- en
- Landing Page
- http://arxiv.org/abs/2308.02761
- https://arxiv.org/pdf/2308.02761
- OA Status
- green
- Cited By
- 2
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4385681192
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4385681192Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.48550/arxiv.2308.02761Digital Object Identifier
- Title
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Thermoelastic fracturing and buoyancy-driven convection: Surprising sources of longevity for EGS circulationWork title
- Type
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preprintOpenAlex work type
- Language
-
enPrimary language
- Publication year
-
2023Year of publication
- Publication date
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2023-08-05Full publication date if available
- Authors
-
Mark McClureList of authors in order
- Landing page
-
https://arxiv.org/abs/2308.02761Publisher landing page
- PDF URL
-
https://arxiv.org/pdf/2308.02761Direct link to full text PDF
- Open access
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YesWhether a free full text is available
- OA status
-
greenOpen access status per OpenAlex
- OA URL
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https://arxiv.org/pdf/2308.02761Direct OA link when available
- Concepts
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Thermoelastic damping, Inflow, Buoyancy, Fracture (geology), Mechanics, Flow (mathematics), Thermal, Geology, Geotechnical engineering, Meteorology, PhysicsTop concepts (fields/topics) attached by OpenAlex
- Cited by
-
2Total citation count in OpenAlex
- Citations by year (recent)
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2025: 1, 2024: 1Per-year citation counts (last 5 years)
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10Other works algorithmically related by OpenAlex
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