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OPM / opm-simulators

OPM Flow and experimental simulators, including components such as well models etc.
http://www.opm-project.org
GNU General Public License v3.0
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error: nan residual found with flow for grid that works with eclipse #1773

Open olwijn opened 5 years ago

olwijn commented 5 years ago

I have a working Eclipse gas-oil case based on an existing gas-water field case (very small). When I try to run the same case with flow it produces an error at the first time step:

Error: [/mnt/c/ProgramFiles/opm_dev/opm-simulators/opm/autodiff/BlackoilModelEbos.hpp:802] NaN residual found!

This error does not appear if the same fluid model etc. are implemented in a simplified rectangular grid, which has led us to believe that there is a problem with the way that flow handles the corner-point grid.

I can share the simulation deck, but no through GitHub. If there is someone interested in looking into this issue I can send it directly by email.

atgeirr commented 5 years ago

Are there cells with zero porosity or permeability?

I cannot promise to figure out the problem, but I can at least check that I can reproduce it. My email address is atgeirr at sintef dot no.