Hydromechanical Modeling of High-Voltage Electropulse-Assisted Fluid Injection for Rock Fracturing

Ouyang, P; Rao, P; Wu, J; Cui, J; Nimbalkar, S; Chen, Q

Hydromechanical Modeling of High-Voltage Electropulse-Assisted Fluid Injection for Rock Fracturing

Ouyang, P Rao, P Wu, J Cui, J Nimbalkar, S

Chen, Q

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Publisher:: Springer Nature
Publication Type:: Journal Article
Citation:: Rock Mechanics and Rock Engineering, 2023, pp. 1-26
Issue Date:: 2023-01-01

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Field	Value	Language
dc.contributor.author	Ouyang, P
dc.contributor.author	Rao, P
dc.contributor.author	Wu, J
dc.contributor.author	Cui, J
dc.contributor.author	Nimbalkar, S https://orcid.org/0000-0002-1538-3396
dc.contributor.author	Chen, Q
dc.date.accessioned	2023-05-06T06:47:03Z
dc.date.available	2023-05-06T06:47:03Z
dc.date.issued	2023-01-01
dc.identifier.citation	Rock Mechanics and Rock Engineering, 2023, pp. 1-26
dc.identifier.issn	0723-2632
dc.identifier.issn	1434-453X
dc.identifier.uri	http://hdl.handle.net/10453/170244
dc.description.abstract	This paper presents a computational analysis of the evolution of mechanical characteristics in natural rock formations under the combined action of high-voltage electro-pulse and fluid injection. To solve the combined problem, a numerical solution based on a hydromechanical model is proposed. A system of anisotropic damage model is applied to capture tensile and shear damage. Innovative numerical simulations reveal that high-voltage electro-pulse can significantly enhance the effectiveness of rock-breaking in fluid injection. The simulation consists of two primary phases. First, high-voltage electro-pulse causes pre-damage and radial fissures in the rock formation, which creates a more favorable environment for subsequent fluid injection. The fluid flux is then conducted in the pre-damaged hole to fracture the rock formation further. The unique numerical method may have consequences for optimizing the rock-breaking strategy in geoengineering applications, such as the development of geothermal systems and the exploitation of oil/gas resources.
dc.language	en
dc.publisher	Springer Nature
dc.relation.ispartof	Rock Mechanics and Rock Engineering
dc.relation.isbasedon	10.1007/s00603-023-03257-8
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0905 Civil Engineering, 0914 Resources Engineering and Extractive Metallurgy
dc.subject.classification	Geological & Geomatics Engineering
dc.title	Hydromechanical Modeling of High-Voltage Electropulse-Assisted Fluid Injection for Rock Fracturing
dc.type	Journal Article
utslib.for	0905 Civil Engineering
utslib.for	0914 Resources Engineering and Extractive Metallurgy
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
utslib.copyright.status	closed_access	*
dc.date.updated	2023-05-06T06:47:00Z
pubs.publication-status	Published

Abstract:

This paper presents a computational analysis of the evolution of mechanical characteristics in natural rock formations under the combined action of high-voltage electro-pulse and fluid injection. To solve the combined problem, a numerical solution based on a hydromechanical model is proposed. A system of anisotropic damage model is applied to capture tensile and shear damage. Innovative numerical simulations reveal that high-voltage electro-pulse can significantly enhance the effectiveness of rock-breaking in fluid injection. The simulation consists of two primary phases. First, high-voltage electro-pulse causes pre-damage and radial fissures in the rock formation, which creates a more favorable environment for subsequent fluid injection. The fluid flux is then conducted in the pre-damaged hole to fracture the rock formation further. The unique numerical method may have consequences for optimizing the rock-breaking strategy in geoengineering applications, such as the development of geothermal systems and the exploitation of oil/gas resources.

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http://hdl.handle.net/10453/170244