IRUS Total

Heterogeneous fluid flow in fractured layered carbonates and its implication for generation of incipient karst

File Description SizeFormat 
Karst_Manuscript_revised_submission_AWR_Final.pdfAccepted version1.65 MBAdobe PDFView/Open
Title: Heterogeneous fluid flow in fractured layered carbonates and its implication for generation of incipient karst
Authors: Wang, X
Lei, Q
Lonergan, L
Jourde, H
Gosselin, O
Cosgrove, J
Item Type: Journal Article
Abstract: We use numerical models to investigate fluid flow in layered fractured carbonate rocks, and specifically to investigate the effects of the structural and hydraulic properties of both joints and bedding planes on flow localization. Synthetic fracture networks made up of two jointed layers separated by a horizontal bedding plane are generated to represent the typical layered fracture systems often formed in carbonate rocks. A uniform aperture field is assumed for each joint set and for the bedding plane, but different joint sets and the bedding plane can have non-identical values. The aperture ratio of the joint sets to the bedding plane is found to dominate the behaviour of flow heterogeneity on the bedding plane. Three distinct flow regimes, i.e. joint-dominated, transitional and bedding plane-dominated, are recognized. The magnitude of the aperture ratio controls which flow regime develops. We further suggest that the different flow regimes may be responsible for the initiation of different types of incipient karst morphologies observed in nature: pipe karst, stripe karst and sheet karst.
Issue Date: 20-May-2017
Date of Acceptance: 20-May-2017
URI: http://hdl.handle.net/10044/1/48636
DOI: https://dx.doi.org/10.1016/j.advwatres.2017.05.016
ISSN: 1872-9657
Publisher: Elsevier
Start Page: 502
End Page: 516
Journal / Book Title: Advances in Water Resources
Volume: 107
Copyright Statement: © 2017 Published by Elsevier Ltd. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Sponsor/Funder: Total E&P Recherche Developpment
Total E&P Recherche Developpment
Funder's Grant Number: FR00006274
Keywords: 0905 Civil Engineering
0907 Environmental Engineering
Environmental Engineering
Publication Status: Published
Appears in Collections:Earth Science and Engineering
Faculty of Engineering