Flow-coupled DEM modeling for hydraulic fracturing in unconsolidated sands

H. Shimizu, M. Shazree, T. Ito, H. Narita

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Previous researches suggest that the hydraulic fracturing in unconsolidated sand is affected by many factors. However, the formation process of the fractures in unconsolidated sands has not been sufficiently clarified. Based on this situation, an original Distinct Element Method (DEM) code corresponding to unconsolidated sands was developed, and the mechanism of the hydraulic fracturing in the unconsolidated sands was discussed by flow-coupled DEM simulation. The model in this study has the ability to form various fracture formations depending on the permeability of the model and viscosity of the fracturing fluid. The fracture growth pattern that is observed in these simulations can be classified to no fracture, cavity expansion and linear fracture. Linear fractures formation in this simulations varies depending on the fluid mobility. Short fracture, long fracture and fracture that formed in two directions can be observed in our simulations.

Original languageEnglish
Title of host publicationComputer Methods and Recent Advances in Geomechanics - Proc. of the 14th International Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014
PublisherTaylor and Francis - Balkema
Pages1697-1701
Number of pages5
ISBN (Print)9781138001480
DOIs
Publication statusPublished - 2015 Jan 1
Event14th International Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014 - Kyoto, Japan
Duration: 2014 Sep 222014 Sep 25

Publication series

NameComputer Methods and Recent Advances in Geomechanics - Proceedings of the 14th Int. Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014

Other

Other14th International Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014
CountryJapan
CityKyoto
Period14/9/2214/9/25

ASJC Scopus subject areas

  • Computer Science Applications
  • Geochemistry and Petrology

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