Implementation of manifold coverage for 3D rock fracture network modeling and its application in rock permeability prediction

Xiao, H; He, L

Implementation of manifold coverage for 3D rock fracture network modeling and its application in rock permeability prediction

Xiao, H He, L

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Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Computers and Geotechnics, 2022, 145, (-), pp. 104702
Issue Date:: 2022-05-01

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Field	Value	Language
dc.contributor.author	Xiao, H
dc.contributor.author	He, L
dc.date.accessioned	2023-05-25T04:05:57Z
dc.date.available	2023-05-25T04:05:57Z
dc.date.issued	2022-05-01
dc.identifier.citation	Computers and Geotechnics, 2022, 145, (-), pp. 104702
dc.identifier.issn	0266-352X
dc.identifier.uri	http://hdl.handle.net/10453/170468
dc.description.abstract	Fracture network modeling is an important prerequisite for studies on rock mechanical behaviors and permeability properties At present fracture patterns in most discrete fracture network DFN models are expressed by Euclidean geometries which leads to distortion in describing complex fractured rocks In order to solve this problem a block texture synthesis method is proposed in this paper to generate multi resolution two dimensional 2D DFN models for fractured coal The results show that the generated multi resolution 2D DFN models largely retain the fracture texture structure in the original exemplar In addition the concept of manifold coverage is adopted to optimize the 2D fracture image and the three dimensional 3D texture based DFN models are generated by the solid texture synthesis method from the optimized image The results indicate that the 3D texture based DFN models have good fidelity of natural fractures in fracture sets orientation density roughness fluctuation aperture and connectivity from the perspective of geometric appearance Comparison between the 3D DFN model with texture coverage and random coverage shows good consistency in fracture proportion geometric pattern and permeability properties Therefore the 3D DFN models based on random coverage provide a new idea for modeling fractured rocks and lattice models in numerical simulation of rock mechanical behaviors and permeability properties by various methods such as RFPA2D 3D FLAC2D 3D and Lattice Boltzmann Method LBM 2022 Elsevier Ltd
dc.language	en
dc.publisher	Elsevier
dc.relation.ispartof	Computers and Geotechnics
dc.relation.isbasedon	10.1016/j.compgeo.2022.104702
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0905 Civil Engineering, 0914 Resources Engineering and Extractive Metallurgy, 0915 Interdisciplinary Engineering
dc.subject.classification	Geological & Geomatics Engineering
dc.title	Implementation of manifold coverage for 3D rock fracture network modeling and its application in rock permeability prediction
dc.type	Journal Article
utslib.citation.volume	145
utslib.for	0905 Civil Engineering
utslib.for	0914 Resources Engineering and Extractive Metallurgy
utslib.for	0915 Interdisciplinary Engineering
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
utslib.copyright.status	closed_access	*
dc.date.updated	2023-05-25T04:05:54Z
pubs.issue	-
pubs.publication-status	Published
pubs.volume	145
utslib.citation.issue	-

Abstract:

Fracture network modeling is an important prerequisite for studies on rock mechanical behaviors and permeability properties At present fracture patterns in most discrete fracture network DFN models are expressed by Euclidean geometries which leads to distortion in describing complex fractured rocks In order to solve this problem a block texture synthesis method is proposed in this paper to generate multi resolution two dimensional 2D DFN models for fractured coal The results show that the generated multi resolution 2D DFN models largely retain the fracture texture structure in the original exemplar In addition the concept of manifold coverage is adopted to optimize the 2D fracture image and the three dimensional 3D texture based DFN models are generated by the solid texture synthesis method from the optimized image The results indicate that the 3D texture based DFN models have good fidelity of natural fractures in fracture sets orientation density roughness fluctuation aperture and connectivity from the perspective of geometric appearance Comparison between the 3D DFN model with texture coverage and random coverage shows good consistency in fracture proportion geometric pattern and permeability properties Therefore the 3D DFN models based on random coverage provide a new idea for modeling fractured rocks and lattice models in numerical simulation of rock mechanical behaviors and permeability properties by various methods such as RFPA2D 3D FLAC2D 3D and Lattice Boltzmann Method LBM 2022 Elsevier Ltd

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