What's New in 2026.11

Correlation Plots

The correlation report shows the history curve in the summary plot, and the cross plot shows the history value at the selected time step.
Clicking a bar in the tornado plot updates the other plots in the correlation report.
The RFT correlation plot supports filtering by formations, and formations can be read from an ensemble formations.csv file.

Decline Curve Analysis

New Auto (Arps) decline curve type, where the decline constant is fitted to the data.
Decline parameters can be found by regression on the history values, in addition to matching the start and end point.
The decline equations can be displayed in the plot, and the time range is selected by date.
Decline curves are created with distinct colors.

Contour Maps in 3D Views

Contour maps, including ensemble contour maps, can be shown inside a regular 3D view together with the grid, wells and surfaces. The map surface and contour lines can be drawn on a flat plane, or draped onto the top of the visible geometry.

Contour Maps in 3D Views

Summary Plots

A common legend can be shown above the subplots of a summary plot. When the curve color and symbol are given by different summary dimensions, the legend is split into a color legend and a symbol legend.
Ensemble history vectors are plotted from the first realization only, without statistics, and drawn on top of the realization curves.

Common legend for subplots

History curves

Generic View

A generic view can display well paths, surfaces, polygons and annotations without a loaded grid model. A generic view is created automatically when well paths or surfaces are imported into a project without 3D views.

Generic View

Restore Previous Project Versions

Previous versions of a project file can be restored from the project backup database using File > Restore Previous Project Versions…. This replaces the standalone restore tool.

Project File Revisions

Formations

Formation zones can be imported from an FMU zone range file (zonation_ecl_map.yml), in addition to .lyr files and layer_zone_table.txt.
Zone colors are read from an FMU stratigraphy.json file located next to the zone file.
Formations are imported automatically for each realization in a grid case ensemble. When several formation files are present, .lyr files take priority over zonation_ecl_map.yml, followed by layer_zone_table.txt.

Formations and Well Picks

Additional Fixes and Improvements

Flow diagnostics is supported for grids imported with the opm-common reader.
Polygon intersections can be created from a polygon digitized in the 3D view.
Ensemble contour maps can be filtered by an ensemble data filter, for example on formations or a property value range. See Ensemble Contour Maps.
Ensemble well logs can be created directly from a well path, with default import of EGRID files and improved handling of file names that do not match the ensemble pattern. See Ensemble Well Log.
Compute Contour Map Peaks detects the locations of local maxima in a contour map. See Contour Map Peaks.
MSW export supports optional minimum and maximum segment length per segment interval.
Relative permeability plots can show 1-SGAS on the x-axis.
Grid models can be reordered in the project tree.
Recently used folders are shown when selecting a folder.
Ensemble parameters can be exported to file.
User-defined plot axis ranges are kept when summary cases and ensembles are added, reloaded or replaced.
PLT and RFT plots are supported for wells in radial grids.
Improved performance of geometry computations when opening a grid.
Python: Added support for ensemble summary data and multiple ensembles in plots, and updated the summary multi plot interface.
Fixed wrong units for field unit models in RFT plots, LAS export, observed FMU data and fracture D-factor.
Fixed several crashes, including crashes when reading malformed input files.