$Numerical modelling and diagnostic techniques of hydraulic fractures based on their inlet behaviour$
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Numerical modelling and diagnostic techniques of hydraulic fractures based on their inlet behaviour

In the current conditions of mines exploited by caving methods, pre-conditioning by hydraulic fracturing has proven to have positive impacts such as the decrease in the block’s size related to the primary fragmentation. An essential part of the pre-conditioning design is the estimation of...

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Autores principales:	Valderrama,Cristóbal, Sáez,Esteban
Lenguaje:	English
Publicado:	Universidad Católica de la Santísima Concepción 2015
Materias:	hydraulic fracturing numerical modelling diagnostic technique mine pre-conditioning
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-28132015000200005
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spelling	oai:scielo:S0718-281320150002000052016-01-07Numerical modelling and diagnostic techniques of hydraulic fractures based on their inlet behaviourValderrama,CristóbalSáez,Esteban hydraulic fracturing numerical modelling diagnostic technique mine pre-conditioning In the current conditions of mines exploited by caving methods, pre-conditioning by hydraulic fracturing has proven to have positive impacts such as the decrease in the block’s size related to the primary fragmentation. An essential part of the pre-conditioning design is the estimation of the hydraulic fractures length. On the other hand, the energy dissipated by the viscous flow imide the fracture modifies the propagation characteristics of these fractures, making difficult the use of standard methods of fracture mechanics in numerical modelling. For this reason, for plain-strain and axisymmetric cases we propose a numerical resolution strategy, which can be used for any set of hydraulic fracturing parameters. These criteria are based on the pressure and opening values at the inlet, and additionally on their length (or radius). Furthermore, this last characteristic, allow us to modify the propagation criteria in order to generate diagnostic tools for the estimation of fractures dimensions in the field.info:eu-repo/semantics/openAccessUniversidad Católica de la Santísima ConcepciónObras y proyectos n.18 20152015-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-28132015000200005en10.4067/S0718-28132015000200005
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	hydraulic fracturing numerical modelling diagnostic technique mine pre-conditioning
spellingShingle	hydraulic fracturing numerical modelling diagnostic technique mine pre-conditioning Valderrama,Cristóbal Sáez,Esteban Numerical modelling and diagnostic techniques of hydraulic fractures based on their inlet behaviour
description	In the current conditions of mines exploited by caving methods, pre-conditioning by hydraulic fracturing has proven to have positive impacts such as the decrease in the block’s size related to the primary fragmentation. An essential part of the pre-conditioning design is the estimation of the hydraulic fractures length. On the other hand, the energy dissipated by the viscous flow imide the fracture modifies the propagation characteristics of these fractures, making difficult the use of standard methods of fracture mechanics in numerical modelling. For this reason, for plain-strain and axisymmetric cases we propose a numerical resolution strategy, which can be used for any set of hydraulic fracturing parameters. These criteria are based on the pressure and opening values at the inlet, and additionally on their length (or radius). Furthermore, this last characteristic, allow us to modify the propagation criteria in order to generate diagnostic tools for the estimation of fractures dimensions in the field.
author	Valderrama,Cristóbal Sáez,Esteban
author_facet	Valderrama,Cristóbal Sáez,Esteban
author_sort	Valderrama,Cristóbal
title	Numerical modelling and diagnostic techniques of hydraulic fractures based on their inlet behaviour
title_short	Numerical modelling and diagnostic techniques of hydraulic fractures based on their inlet behaviour
title_full	Numerical modelling and diagnostic techniques of hydraulic fractures based on their inlet behaviour
title_fullStr	Numerical modelling and diagnostic techniques of hydraulic fractures based on their inlet behaviour
title_full_unstemmed	Numerical modelling and diagnostic techniques of hydraulic fractures based on their inlet behaviour
title_sort	numerical modelling and diagnostic techniques of hydraulic fractures based on their inlet behaviour
publisher	Universidad Católica de la Santísima Concepción
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-28132015000200005
work_keys_str_mv	AT valderramacristobal numericalmodellinganddiagnostictechniquesofhydraulicfracturesbasedontheirinletbehaviour AT saezesteban numericalmodellinganddiagnostictechniquesofhydraulicfracturesbasedontheirinletbehaviour
_version_	1714203337558065152

Numerical modelling and diagnostic techniques of hydraulic fractures based on their inlet behaviour

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