CMG Simulation Problem
Moderator: Simulation_team
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anish.phade
- Posts: 6
- Joined: Thu Sep 27, 2007 12:06 am
CMG Simulation Problem
I'm using CMG IMEX to run a simulation for a gas reservoir with no water contact. After the run for 12 yrs, I observe the Material Balance Error of 70%. This is happening mailny due to convergence issues. I need help understanding the main cause and remedies for this problem.
P.S. : I've already tried decreasing the timestep and Pore volume cut-off to solve this problem but the problem still remains.
P.S. : I've already tried decreasing the timestep and Pore volume cut-off to solve this problem but the problem still remains.
try to decrease the grid block size OR
decrease the convergence problem by eliminating the rapid changes in mobility among cells
check the bottom hole pressure or grid cells pressure at that time (may be it is below your constraint pressure or below the economic value)
you can try to use the same model with different simulation package like eclipse
I'm with you and let me know
decrease the convergence problem by eliminating the rapid changes in mobility among cells
check the bottom hole pressure or grid cells pressure at that time (may be it is below your constraint pressure or below the economic value)
you can try to use the same model with different simulation package like eclipse
I'm with you and let me know