One major challenge with the current subsurface modeling workflows is the difficulty to transfer the high complexity of static geological models to simulation. This paper describes an improved gridding technology that overcomes the shortcomings of existing corner-point stair-step and pillar-based grids in capturing the complex geological features of hydrocarbon reservoirs. It also highlights the seamless use of this new gridding technology in flow simulation.

After reviewing the different types of grids commonly used in geological modeling, the benefits of the new approach will be detailed, while highlighting its compatibility with commercial flow simulators.

Common modeling practices that use corner-point stair-step and pillar-based grids fail to preserve the geometry of most geological objects. The new gridding algorithm presented here addresses three major shortcomings of the current approaches by providing an efficient way to:

  • Accurately represent any type of geological structures in a 3D grid.
  • Capture complex sedimentological properties across geological structures.
  • Connect the grid to commercial flow simulators to preserves any type of structure and sedimentology in dynamic simulations.

This high-accuracy gridding system is fully simulator agnostic, giving simulation engineers a unique opportunity to run models without the need for any explicit grid system conversion.


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