TY - GEN
T1 - Flow-coupled DEM modeling for hydraulic fracturing in unconsolidated sands
AU - Shimizu, H.
AU - Shazree, M.
AU - Ito, T.
AU - Narita, H.
PY - 2015/1/1
Y1 - 2015/1/1
N2 - 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.
AB - 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.
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U2 - 10.1201/b17435-300
DO - 10.1201/b17435-300
M3 - Conference contribution
AN - SCOPUS:84907301233
SN - 9781138001480
T3 - Computer 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
SP - 1697
EP - 1701
BT - Computer 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
PB - Taylor and Francis - Balkema
T2 - 14th International Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014
Y2 - 22 September 2014 through 25 September 2014
ER -