Kai Bao

Just post the observation of the regression failures, for later information. Not sure whether be able to finish it before the summer. The following tests require more looking into. [mpi.compareECLFiles_flow+SPE1CASE2_BRINE_GASWATER](https://ci.opm-project.org/job/opm-models-PR-builder/511/testReport/junit/(root)/mpi/compareECLFiles_flow_SPE1CASE2_BRINE_GASWATER/)...

jenkins build this opm-simulators=5236 please

jenkins build this opm-simulators=5236 please

Will trigger a new jenkins to check for tomorrow.

jenkins build this opm-simulators=5236 please

jenkins build this opm-simulators=5236 please

UDT-1D-01B  MSW_MODEL_1 and BASE_MODEL_1 have the same problem,  UDQ_M1  WVFPEXP-02  0_BASE_MODEL6  9_3D_GINJ_GAS_MAX_EXPORT_MSW  H2STORE_GASWAT  CO2STORE_DRSDTCON  2D_OW_CTAQUIFER  The following case might not have...

For the case UDT-1D-01B master branch has oscillation of the control mode for the production well and at the end, it chose ORAT control and had BHP lower than bhp...

For UDQ_M1, using stricter tolerance for the wells either with `'--tolerance-wells=1.e-8'` or `'--relaxed-well-flow-tol=1.e-7'` will stablize the simulation some, while it is affected by the time stepping.  Editing the DATA...

adding `--tolerance-wells=1.e-8` to UDT-1D-01B also help to stablize the simulation.  Will also add that to UDQ-1D-01B regression test.