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Determination of the aperture distribution of rough-walled rock fractures with the non-toxic Yield Stress fluids porosimetry method

hal.structure.identifierArts et Métiers ParisTech Châlons-en-Champagne
dc.contributor.authorRODRIGUEZ DE CASTRO, Antonio
hal.structure.identifierInstitut de Mécanique et d'Ingénierie [I2M]
dc.contributor.authorAHMADI-SENICHAULT, Azita
hal.structure.identifierInstitut de Mécanique et d'Ingénierie [I2M]
dc.contributor.authorOMARI, Abdelaziz
dc.date.accessioned2021-05-14T09:30:13Z
dc.date.available2021-05-14T09:30:13Z
dc.date.issued2020-12
dc.identifier.issn0309-1708
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/75794
dc.description.abstractEnFractures in geological formations constitute high-conductivity conduits which potentially act as preferential paths during fluid injection in soil remediation and reservoir engineering operations. Recently, the measurement of the pressure drop under different flow rates during the flow of yield stress fluids in porous media has been proposed as the basis for an environmentally friendly method to characterize the Pore Size Distribution. However, the Yield Stress fluids porosimetry Method (YSM) has still not been extended to the characterization of the hydraulic aperture distribution of rough-walled rock fractures. The potential interest of such an extension is intense, considering that the distinct characteristics of rock fractures vs the matrix represent a burden to other traditional porosimetry techniques. In the particular case of X-ray microtomography, time-consuming calibration is often needed, and serious difficulties arise due to beam hardening and reconstruction artifacts. The specific objective of the present investigation is to adapt YSM to the characterization of rough-walled rock fractures. For this purpose, the results of laboratory experiments in which a yield stress fluid was injected through two natural rock fractures were exploited, and the YSM model and algorithm was adapted to the particular topological and geometrical features of flows in fractures. Moreover, numerical experiments were performed at the scale of a single 2D channel with variable aperture to identify the dimension characterized by YSM and decipher the yielding behaviour of the fluids. The present findings show that YSM can be successfully used to characterize the distribution of hydraulic apertures of the flow channels in rough-walled rock fractures. Furthermore, the numerical results revealed that the plug of stagnant fluid is located in the central part of these flow channels and breaks close to the constrictions, forming islands of unyielded fluid.
dc.language.isoen
dc.publisherElsevier
dc.title.enDetermination of the aperture distribution of rough-walled rock fractures with the non-toxic Yield Stress fluids porosimetry method
dc.typeArticle de revue
dc.identifier.doi10.1016/j.advwatres.2020.103794
dc.subject.halSciences de l'ingénieur [physics]
bordeaux.journalAdvances in Water Resources
bordeaux.volume146
bordeaux.hal.laboratoriesInstitut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.institutionINRAE
bordeaux.institutionArts et Métiers
bordeaux.peerReviewedoui
hal.identifierhal-03180417
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03180417v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Advances%20in%20Water%20Resources&rft.date=2020-12&rft.volume=146&rft.eissn=0309-1708&rft.issn=0309-1708&rft.au=RODRIGUEZ%20DE%20CASTRO,%20Antonio&AHMADI-SENICHAULT,%20Azita&OMARI,%20Abdelaziz&rft.genre=article


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