The tNavigator 21.3 Release is Here

Rock Flow Dynamics released the third update in 2021 of the tNavigator software package. Version 21.3 is now available to users. Updates and improvements affected the simulator kernel, graphical interface, AHM and Uncertainty module, Geology and Model Designer, PVT Designer, Well and Network Designer.

The key new features are:

  1. tNavigator installation:
    • The Windows version of tNavigator is now distributed as an installer
    • The installer lets you choose the language for the installation process and for the tNavigator interface on its first run.
    • The installer also installs user documentation.
  2. In the Simulator kernel:
    • Dynamic switching between GPU modes depending on the free GPU memory has been introduced.
    • The results of different model cases are saved in separate subfolders of the RESULTS folder. Backward compatibility for restart models is ensured. Also, the previous format of data storage can be switched on for legacy models.
    • For compositional models, the options of hydrocarbon solubility in water and multicomponent water can now be used simultaneously.
    • For models of all types, the choice of a wetting phase – gas, water or
      oil – for the three phase RP calculation has been introduced.
    • Geothermal cases containing only water components may now be calculated.
    • The tools of geomechanical modeling have been extended. The following options can now be used:
      — depth-dependent stress boundary conditions;
      — an option for stressed or deformed initial conditions;
      — geomechanical parameters (Poisson’s coefficient, Young’s modulus) can now be dependent on temperature and pressure.
  3. In the tNavigator graphical interface:
    • A new implementation of the Graph Templates tab has been introduced.
  4. In the Assisted History Matching and Uncertainty module:
    • An external optimization algorithm in Python may be employed.
  5. In Geology and Model Designers:
    • It is now possible to drag and drop objects from the objects tree to the workflows, to visualization tabs, and to tables.
    • Icons for all tabs have been added.
    • Objects’ history can be transferred while importing data between projects.
    • An option has been added to adjust the order in which objects are drawn in the 2D tab by dragging them in the list or to restore the default order.
    • The construction of a well from a related Well Designer project can now be visualized in the Well Section tab.
    • It is now possible to pass and return variables of an arbitrary type to child workflows.
  6. In Geology Designer:
    • Discrete Fracture Network (DFN) modeling has been introduced.
    • Facies can be automatically classified by a set of well logs. An unsupervised machine learning algorithm has been implemented for this purpose.
    • An option to truncate several minor faults by one major fault (Multi truncation rule) has been added. Automatic filling of the table of faults mutual truncation is now available.
    • A trend surface may be set explicitly for the horizons of a structural model.
    • Three methods have been introduced to approximate grid properties (building a trend model): the moving window, the polynomial, and minimal curvature. 1D, 2D, and 3D trends may be built.
    • The tools of data analysis have been extended: trend detection, distribution adjustment, TGS trends.
  7. In Model Designer:
    • Results of coupled models can now be viewed. While initializing the MASTER model, all SLAVE models are displayed in the results according to their hierarchy.
    • Results of the Fracture Simulator are now available in the workflows.
    • Graph Calculator scripts can now be run from workflows.
  8. In PVT Designer:
    • A new experiment to simulate water-in-oil emulsions has been introduced.
  9. In Well Designer:
    • It is now possible to modify the connection between a Well Designer project and a well in Model Designer.
    • A new correlation Mechanistic correlation has been added.
  10. In Network Designer:
    • The coordinates of wells selected in a Model Designer project can now be synchronized with the corresponding wells of the surface network project being created.
  11. Cross-module changes:
    • Many changes involved in tNavigator modules integration influence multiple modules, but are only mentioned once in the presentation below. These include:
      — dragging objects from the tree to various fields;
      — new workflow functions;
      — icons for tabs;
      — …etc.

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

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