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Geomechanics

To reliably quantify changes in in-situ stress resulting from oilfield drilling and production operations, a representative description of the subsurface is needed, to enable the simulation of both fluid movement and geomechanical effects.

SKUA-GOCAD™ offers robust tools for creating high-fidelity grids - with no unwarranted simplification - for geomechanical simulations. These grids include structured and unstructured meshes, both of which conform to faults and stratigraphic horizons.  

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Hybrid grid for a faulted reservoir with flower system structure

The recently introduced Hybrid grid honors geology while respecting the constraints of geomechanical simulators. It is created directly from the SKUA UVT model using a guided, step-by-step workflow, regardless of model complexity. The Hybrid grid is composed of hexahedral cells for computational efficiency and consistency with deposition, and tetrahedral cells to conform to the arbitrary shape of interpreted faults.

The user can fill the grid with rock properties through transfer from geological models or directly using Geostatistics on the grid.  The hybrid grid can then be exported to the Abaqus® geomechanical simulator from Dassault Systémes, and to RESQML 2.0 and Eclipse 1D, for next-generation flow simulators.

Benefits

  • Easy creation of hybrid unstructured grids that conform to both faults and stratigraphic boundaries.
  • Honor geology with no unwarranted simplifications.
  • Optimal mesh for geomechanical simulations combining numerical efficiency and accuracy.  A foundation for coupled flow and geomechanical simulations.
 
SKUA-GOCAD fit-for-purpose high fidelity grids

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