Comparative Solution Project

What applications can be used to convert .msh file generated by gmsh to .GRDECL ?

Hi Najmudeen,

at the moment, we don't have a conversion tool available. To get you started, we offer GRDECL files at https://github.com/Simulation-Benchmarks/11thSPE-CSP/tree/main/input_decks/eclipse. They are currently restricted to case 11A, but a team at SLB is working on providing files also for the other two cases.

Gridding is part of the exercise of this CSP. While our aim is to provide you with initial decks to get you going, we explicitly allow that participants use the grid that is best for their purpose. This is different from the earlier CSPs where the grid was given explicitly.

I think that converting a structured grid resulting from make_structured_mesh.py to GRDECL should be relatively straightforward. Concerning the unstructured grids resulting from calling Gmsh with the provided geo files, I expect a conversion to be very cumbersome as the Gmsh gridding doesn't respect any logically Cartesian structure. To achieve a corner point grid aligned with the facies, it is more promising to work on the geo files directly.

Our repository https://github.com/Simulation-Benchmarks/11thSPE-CSP is open to contributions. If anyone here in the community is aware of any workflow facilitating the creation of GRDECL files, they are more than welcome to contribute!

Kind regards

Bernd