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Modeling of placement of immiscible fluids of different rheology into a hydraulic fracture / Alexander Lakhtychkin in Industrial & engineering chemistry research, Vol. 50 N° 9 (Mai 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 9 (Mai 2011) . - pp. 5774–5782 Titre : Modeling of placement of immiscible fluids of different rheology into a hydraulic fracture Type de document : texte imprimé Auteurs : Alexander Lakhtychkin, Auteur ; Oleg Vinogradov, Auteur ; Dmitry Eskin, Auteur Année de publication : 2011 Article en page(s) : pp. 5774–5782 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Immiscible  fluids Résumé : A model of consecutive placements of two different immiscible fluids, possessing different densities and rheological properties, into an expanding fracture is presented. Hydraulic fracturing technology, based on such a fluid placement, is expected to allow better fracture shape control. Mathematically, the problem is reduced to solving a two-dimensional second-order nonlinear partial differential equation describing pressure distribution in a semiellipsoid domain with moving boundaries. The level set method is used to track the interface between the fluids in time. Numerical examples of the placement of power-law fluids are presented, and the accuracy of the computations is investigated. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie101914d [article] Modeling of placement of immiscible fluids of different rheology into a hydraulic fracture [texte imprimé] / Alexander Lakhtychkin, Auteur ; Oleg Vinogradov, Auteur ; Dmitry Eskin, Auteur . - 2011 . - pp. 5774–5782. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 9 (Mai 2011) . - pp. 5774–5782 Mots-clés : Immiscible  fluids Résumé : A model of consecutive placements of two different immiscible fluids, possessing different densities and rheological properties, into an expanding fracture is presented. Hydraulic fracturing technology, based on such a fluid placement, is expected to allow better fracture shape control. Mathematically, the problem is reduced to solving a two-dimensional second-order nonlinear partial differential equation describing pressure distribution in a semiellipsoid domain with moving boundaries. The level set method is used to track the interface between the fluids in time. Numerical examples of the placement of power-law fluids are presented, and the accuracy of the computations is investigated. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie101914d