Hi Tony, Generally speaking, convergence issues are challenging regardless which simulator you are using. It is usually triggered by something in the data set. Hence, looking for culprits in the data set is a general advice.
If you want to keep the data set unchanged, and play with numerical tuning in Flow, there are some pit falls to be aware of. The first being the CPR is not really in a good shape yet. You will find activity to rectify that in active pull requests as we speak. While you can force Flow to read in and use the TUNING keyword, I advise against it. The numerics is different between Flow and Eclipse, so picking a few key parameters on the command line is in my experience a better approach. You can find one such selection of tuning parameters here (that have given very good results across a range of cases): https://github.com/OPM/opm-simulators/pull/1891 Cheers, Alf -----Original Message----- From: Opm <opm-boun...@opm-project.org> On Behalf Of Hallam, Antony R Sent: fredag 15. mai 2020 13:05 To: opm@opm-project.org Subject: [Opm] Cell Convergence Debugging Hi, I’m trying to find an equivalent to NEWTON=2 in the RPTSCHED schedule section for debugging cell convergence issues in the PRT. I tried the command-line options with –cpr-solver-verbose but this wasn’t giving me what I wanted which looks something like this so I can identify the problem cells. LINIT= 5 NSCHP= 6 NCHOP= 0 NSTAT1,2,3= 50 5400 0 NTRAN= 321 IT= 1 CNV CELL MAT BAL DPRESS DSWAT DSGAS OIL-1.99144( 5, 45, 1) 4.3D-02 -24.89 0.00026 -0.20000 WAT-0.16316( 2, 4, 4) -3.7D-06 -14.02 0.00490 0.00000 GAS********( 5, 45, 1) -3.1D-02 -24.89 0.00026 -0.20000 Any help would be great. Cheers Tony Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10 ________________________________ Founded in 1821, Heriot-Watt is a leader in ideas and solutions. With campuses and students across the entire globe we span the world, delivering innovation and educational excellence in business, engineering, design and the physical, social and life sciences. This email is generated from the Heriot-Watt University Group, which includes: 1. Heriot-Watt University, a Scottish charity registered under number SC000278 2. Heriot- Watt Services Limited (Oriam), Scotland's national performance centre for sport. Heriot-Watt Services Limited is a private limited company registered is Scotland with registered number SC271030 and registered office at Research & Enterprise Services Heriot-Watt University, Riccarton, Edinburgh, EH14 4AS. The contents (including any attachments) are confidential. If you are not the intended recipient of this e-mail, any disclosure, copying, distribution or use of its contents is strictly prohibited, and you should please notify the sender immediately and then delete it (including any attachments) from your system. _______________________________________________ Opm mailing list Opm@opm-project.org https://opm-project.org/cgi-bin/mailman/listinfo/opm ------------------------------------------------------------------- The information contained in this message may be CONFIDENTIAL and is intended for the addressee only. Any unauthorized use, dissemination of the information or copying of this message is prohibited. If you are not the addressee, please notify the sender immediately by return e-mail and delete this message. Thank you _______________________________________________ Opm mailing list Opm@opm-project.org https://opm-project.org/cgi-bin/mailman/listinfo/opm
