Enhancements

1. Added keyword NZSUBGRID to control the number of depth points to use in a gridblock when computing the initial saturation of each gridblock.
2. Keyword NODESMIN has been reinstated to control resolution along streamlines in conjunction with NODESMAX. See the Technical Appendix for more information.
3. Optimizations when SURVEILLANCE=ON and OMPTHREADSAFE=ON to reduce runtimes.

Bug Fixes

Enhancements

Enhancements

1. Write the number of streamlines traced to the current restart (*.rst) file, then use when restarting a run.

Bug Fixes

1. When forecasting a SURVEILLANCE=ON run, producers that contained negative saturations in their drainage regions throughout the base history run may have had an incorrect forecast due to a compiler bug introduced in the v2022.0208 release.

Bug Fixes

Bug Fixes

1. When forecasting SURVEILLANCE=ON and a well’s final historical gas rate is zero, a non-zero gas rate would sometimes be forecasted. 
2. When forecasting SURVEILLANCE=ON runs, wells with less than three historical rates for a particular phase are correctly forecasted.

Enhancements

1. When reading .EGRID/.INIT files and TRANS keywords are not found in the .INIT file, 3DSL will now recompute all connections across faults, pinchouts, and gaps and may generate NNCs.  Previously 3DSL was assuming there were no NNCs for such a grid, unless explicitly defined in the NNCHEAD arrays of the .EGRID/.INIT files.

Bug Fixes

Enhancements

1. Reverted a change introduced in V2021.0630 which would reuse the matrix setup when recalling SAMG within a timestep.  The setup is no longer reused when SAMG is recalled.  This may slightly increase runtimes for some models but will avoid excessive runtimes when there are substantial numbers of wells backflowing.  

Bug Fixes

1. When reading the FAULTS keyword, an out of memory error would occur if a fault contained more than 32,000 separate line entries.

Bug Fixes

1. The cumulative reservoir produced/injected volumes for boundaries when SURVEILLANCE=ON were not being output correctly.

This is a major new release of 3DSL. Due to the below enhancements, results will not be identical to the previous release version.
Enhancements