Rock Flow Dynamics released the last update in 2021 of the tNavigator software package. Version 21.4 is now available to users. Updates and improvements affected the simulator kernel, AHM and Uncertainty module, Geology and Model Designer, PVT Designer, Well, and Network Designer.

The key new features are:

1. tNavigator installation:
   • Setup software (an installer) for the Linux version of tNavigator has been added. The installer runs in the console and is implemented as a sequence of ASCII graphic screens. The program also installs the user documentation.
2. Log panel:
   • A common view of the log panel with an option to search and filter messages by tags or mask is now supported for Simulator, Geology Designer, Model Designer, Network Designer, and PVT Designer.
3. Simulator kernel:
   • The calculation of polymer options on GPU is now supported.
   • For black oil models, the option of multicomponent water is now supported.
   • Labyrinth inflow control devices for multisegment wells are now supported.
   • For isothermal compositional models in E3 format, the option of modeling a two-phase gas-water system using an equation of state is now supported (the GASWAT keyword).
   • For geomechanical modeling, the linear isotropic plasticity model is now supported. The tensor of plastic deformations for such a model can be implemented as a function of the parameters of the dynamic model.
4. Graphical interface:
   • Oil production graphs for various recovery mechanisms are now available in black oil models (oil produced due to rock compaction, water influx, etc.).
5. Assisted History Matching and Uncertainty module:
   • A new mode to create a neural network for many parameters has been implemented. In that case, a single neural network is built, which helps reduce the training time.
6. Geology and Model Designers:
   • It is now possible to create a Page Layout with several pages. This option allows the visualization of objects that do not fit on one page. 2D-Maps of any size can be printed using a simple A4 printer.
   • The Preview option is now available to control the data exchanging process in the Project Data Exchanger.
7. Geology Designer:
   • It is now possible to set a custom name for each imported well log. A dictionary of log names (mnemonics) can be predefined and applied to all imported logs.
   • An interactive tool for quality control of fault creation has been added: Fault QC.
   • New tools are available to model Discrete Fracture Networks (DFN). New settings are available to control fracture orientation within the modeling area. A new object has been introduced in the list of available windows and tabs: Stereonet/Directional Rose.
   • An option for azimuthal images visualization and interpretation during well navigation is now available. An option to generate synthetic images for the drilled well based on the reference well data has been added.
   • New tools are available to work with geobodies and triangulated surfaces:
     • automatic creation of geobodies based on point sets or fence polygons,
     • interactive editing of geobodies’ triangulated surfaces in 3D,
     • properties creation by geobodies,
     • import/export of triangulated surfaces and geobodies in .tsurf, .ply, .dxf formats.
8. Model Designer:
   • The following fluid properties associated with the analytical model of polymer injection are now supported:
     • the elongational viscosity multiplier as a function of the polymer concentration in a table,
     • the elongational viscosity multiplier as a function of the stream velocity,
     • the temperature-dependent polymer half-life period,
     • etc.
   • In Fracture Simulator, it is now possible to take into account the mutual influence of fractures implemented at different wells to model the fracture stage at the current well.
   • In RP Designer, a new tab titled “SRP” (scaled relative permeabilities) has been added to calculate the hysteresis effect and RP curves in the presence of surfactants.It is now possible to visualize RP curves by changing endpoints.
9. Well Designer:
   • A new object—Sucker Rod Pump—has been added.
10. Network Designer:
    • It is now possible to import and export data for network objects in tabular form in a user-specified format.
11. In PVT Designer:
    • In the workflow, compositional and black oil variants can now be matched to samples.

A full list of improvements can be downloaded from the link.