Hydro-mechanical Coupling and Flow in XSite

  • Fluid flow and mechanical simulations can be done separately or coupled
  • The fluid flow is approximated by a flow through a network of pipes that connect fluid elements, located at the centers of either broken springs or springs intersected by pre-existing joints
  • The flow pipe network is dynamic and automatically updated by connecting newly formed micro-cracks to the existing flow network
  • Non-steady fluid flow is modeled within the joint network and intact rock, maintaining continuity of fluid mass and pressures between joints and the rock matrix
  • Effective stress calculations are carried out
  • Fracture permeability depends on aperture, or on the deformation of the solid model
  • Fluid pressure affects both deformation and the strength of the solid model
  • The deformation of the solid model affects the fluid pressures (i.e., fluid pressure changes under undrained conditions)
  • Includes logic for simulation of proppant transport and placement
  • Newtonian and power-law fluid flow available
  • Non-Darcy effects and pressure drop at perforation clusters are possible
  • Represents leakoff explicitly, as flow into DFN and porous medium flow into rock matrix, or as Carter leakoff
XSite Updates

Latest News
  • 2019 Sloan Outstanding Paper Award Dr. Mojtaba Bahaaddini (Shahid Bahonar University of Kerman), along with Associate Professor Glenn Sharrock (Itasca/UQ),...
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  • Itasca Awarded Prestigious Caving 2040 Research Grant Itasca’s research aims to answer the key industry question “how should block caves be designed...
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  • InSite V3.15 Now Available! Itasca Consulting Ltd (ICL) is pleased to announce the latest release of the InSite family...
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Upcoming Events
26 Jun
Discrete element modelling of dam foundations
Learn about modeling dam foundations using the discrete element method with UDEC and 3DEC software in the 26th ISRM Online Lecture.... Read More
1 Oct
FLAC3D 7.0 Introductory training course
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14 Oct
Focused Seismic and Liquefaction Training 2019
Itasca is offering a focused training session with instruction by experienced engineering consultants, hands-on modeling exercises, and... Read More