tNavigator 18.1
Rock Flow Dynamics
March 2018
Graphical Interface
Geology Designer
Model Designer
Assisted History Matching, Uncertainty analysis, Optimization
Black Oil
Compositional model
Thermal model
PVT Designer (included in Geology, Model and
Network Designers)
Designers Simulation Analyze results
Network Designer
VFP Designer (included in Geology, Model and
Network Designers)
tNavigator Modules
Key improvements in 18.1
Simulator. Hydraulic fracture model based on LGR and changing rock properties in SRV (Stimulated Rock Volume) zone and fracture zone (FRACTURE_PLANE, FRACTURE_TEMPLATE, FRACTURE_WELL, FRACTURE_STAGE etc.)
Simulator. In CPU+GPU calculation NVidia® Volta® cards are supported.
Model Designer. Graphical Interface. According to the active development of Model Designer functionality all pre-processing options will be moved from simulator graphical interface to Model Designer. Simulator graphical interface will be used for post-processing results. In 18.1 the following functionality has been moved from graphical interface to Model Designer:
– RP editing with mouse holding Shift button; – Conversion of table RP to Corey and LET correlation; – Introducing of proppant properties table; – Introducing of flow function.
Module: Geology Designer Geology Designer
Seismic
Display of wells, markers and logs on the 2D seismic lines and arbitrary seismic lines
Creation of arbitrary seismic line
Module: Geology Designer
Seismic
Markers
Segments of arbitrary seismic line
Module: Geology Designer
Display of wells, markers and logs on the 2D seismic lines and arbitrary seismic lines
Seismic
Well Logs
Module: Geology Designer
Display of wells, markers and logs on the 2D seismic lines and arbitrary seismic lines
Variograms for Blocked Wells
3 variogram models for 3 facies
Choose facies for calculation
Isotropic and Anisotropic For discrete Blocked Wells for each facie
Module: Geology Designer
Azimuth maps Can be used for variogram creation Allow to create variogram using azimuth maps for facies analysis Initial data: polygons
Polygons according to trend
Choose polygons for calculation
Module: Geology Designer
Allow to create variogram using azimuth maps for facies analysis Initial data: polygons
Module: Geology Designer Azimuth maps
Fault editing Control modes are available: Along Stick Along Fault Surface Perpenducular to Fault With Arbitrary Direction
Perpenducular to Fault radius 600m
With Arbitrary Direction, radius 600m Visualization of fault editing direction
Module: Geology Designer
Use action radius
Module: Geology Designer Fault editing
Import from shape-files Polygons and point sets can be loaded from shape files
This option can be used to force the visualization of the object in case of corrupted index files
Module: Geology Designer
Convert polygons to pointsets
Module: Geology Designer Import from shape-files Polygons and point sets can be loaded from shape files
Crosshair pointer
Crosshair pointer on Well Section
Module: Geology Designer
Core Samples Images
Core samples images can be loaded and visualized on Well Section
Module: Geology Designer
More options are available:
The possibility to edit comment logs is available on Well Section
Ternary palette is added as an option to Object Settings
New object Contact is introduced: – Creating a contact by horizon or by depth is available – WOC/GOC are taken into account in Calculate Volumetric Properties (volumes and fluid-in-place)
Module: Geology Designer
Module: Model Designer Model Designer
RP points matching The possibility to load RP laboratory data Match the RP model parameters against measured data by varying the end
points and curvature parameters
Module: Model Designer
PROPS and SOLUTION options The list of available properties has been extended Set all option of PROPS and SOLUTION section via keywords Proppant tables and flow function creation
Module: Model Designer
Development strategies Multiple development strategies for a model are available. Each strategy may
contain Global rules and rules by time steps of its own When assembling a model in Model Composer any strategy can be attached
Module: Model Designer
Working with grid properties All grid properties are initially created in a common project tree Properties.
Then a model is assembled, and a grid property is assigned for each particular property needed for the hydrodynamic model
Grid properties that are assigned for usage in the hydrodynamic model are highlighted with bold in the Properties tree
Module: Model Designer
More options are available:
SCHEDULE export in various formats is introduced. Export dialog on the (Wells Data → Schedule) tab allows selection of the format corresponding to the model format: tN (default) or E1, E3, MO, IM, ST, GE.
The possibility to control the amount of RAM used for quick access to project data (Settings → Options → Designer in the main window of tNavigator)
Module: Model Designer
Module: PVT Designer PVT Designer
Splitting of heavy fraction into components
Whitson and Pedersen correlations are implemented
Module: PVT Designer
Grading test The possibility to export depth-dependent temperature
(keyword TEMPVD) from Grading test
Module: PVT Designer
Export COMPVD TEMPVD to the file
Temperature option
The possibility to specify black oil phases viscosity as temperature dependent (keywords WATVISCT, OILVISCT, VISCREF for E1 format)
Module: PVT Designer
Temperature-dependent water properties
Water properties are set for reference temperature and are automatically recalculated for user defined temperature
Module: PVT Designer
More options are available:
Calculate and export PARACHOR Set molar or mass component fractions New library components (ethanol, glycols)
Module: PVT Designer
Module: Network Designer Network Designer
New features
Project Management. The possibility to manage multiple VFP and PVT projects in graphical interface of Network Designer project
Heat loss in the pipe calculation and visualization
Legend for bubble Maps
Module: Network Designer
PVT →Network Designer
Manage PVT projects: Create/Delete PVT projects Edit PVT project Import PVT project Set fluid properties to Network Designer project
Module: Network Designer
PVT → VFP The possibility to set combination PVT project – VFP project, that will be
used in Network Designer project The possibility of mass editing of PVT projects used in VFP
Module: Network Designer
VFP→Objects The possibility to set VFP projects to network objects The possibility of mass editing of VFP tables used for wells
Module: Network Designer
Legend for Bubble Maps Module: Network Designer
Legend visualization for Bubble Maps is available
Module: VFP Designer VFP Designer
Well Construction
Interface for creation of pipes and casings is redesigned
Module: VFP Designer
Project Management
The possibility to use available PVT projects and also PVT project of
Network Designer
Module: VFP Designer
IPR models Available IPR models: Vogel, Fetkovitch, Jones, Well-PI, Well Test data Test Data. Point (volume rate, BHP), through which the calculated curve will go
Module: VFP Designer
Module: AHM and Uncertainty AHM and Uncertainty
Automatic weights in objective function
Automatic weight assignment based on historic data is introduced in objective function specification
𝑃𝑖 𝑃𝑖𝑁1
× 100%
Weights are calculated using this formula:
Module: AHM and Uncertainty
User graphs in objective function UDQ visualization for model variants (for wells and groups) User graphs in objective function
Module: AHM and Uncertainty
Filter by groups of variants Module: AHM and Uncertainty
Module: Graphical Interface Graphical Interface
Multiple exporting of screenshots for wells Well Filter can be used to export screenshots for several wells at one click
Module: Graphical Interface
W40
W1
W27 W34
Graph Calculator
Usage of UDQ
Usage of external Python libraries is supported (version 3.6.4).
Python has a considerable body of libraries for data processing, including sophisticated
mathematical methods, export to Excel and other common formats, etc.
Standard Python libraries can be imported as is:
import datetime
To import custom or third-party libraries:
1. Install Python 3.6.4 or later;
2. If you use API Win32, install package pywin32;
3. In that instance of Python, install the libraries you intend to use;
4. Set tNavigator to use this example of Python.
Module: Graphical Interface
Graph Calculator Function of aggregation over time intervals is introduced
(returns a graph which is piecewise constant over a defined interval, and the value
on each interval is calculated from the original graph over the interval according to type)
wopr.aggregate_by_time_interval(interval='year', type='avg')
'month' 'min' 'max' 'last' 'sum' 'total'
Module: Graphical Interface
More options are available:
Remote GUI. Integration with Windows HPC is supported
Bubble Maps: visualization of legend
Graphs. Add all checked to user selection
Module: Graphical Interface
Module: Simulator Simulation
Fracture modeling via LGR
Fracture model (for formats Е1, E3) is based in grid refinement in fracture zone and properties modification in SRV (Stimulated Rock Volume)
Fracture templates (FRACTURE_PATH, FRACTURE_PLANE, FRACTURE_TEMPLATE)
Arithmetic (FRACTURE_ARITHMETIC) and arithmetic application to fractures (FRACTURE_STAGE)
Module: Simulator
Geomechanical option Visualization of blocks that are used in geomechanical modeling (subdivided to
tetrahedrons) and that are not used (not subdivided to tetrahedrons)
Criteria for controlling the division into tetrahedrons: Geometric criterion and location
Pic.1 A rectangular block subdivided to 6 tetrahedrons
Pic.2. A center-triangulated block
Module: Simulator
Geomechanical option
Keyword PERMSTAB – permeability multiplier can now be specified as a
tabulated function of stress
Grid properties are visualized: Principal Stress Max, Principal Stress Min
PERMSTAB
Module: Simulator
Mohr-Coulomb failure criterion
• τ is the shear stress;
• σ is the normal stress;
• с is the intercept of the failure envelope with the axis τ (COHESION)
• θ is the slope of the failure envelope (THETA)
Rock failure: visualization of the number of violations of the criterion (property Rock Fault), angle θ and с (property Cohesion)
𝜏 = 𝜎 tan 𝜃 + 𝑐
Module: Simulator
Fracture propagation
Visualization of possible directions for fracture propagation
Module: Simulator
For formats IM, ST, GE
Coal bed methane modeling is supported (ADGMAXC, ADGMAXC, ADGCSTC,
COAL-DIF-COMP, COAL-DIF-TIME)
Simultaneous specification of CCPOR (rock compressibility by region) and CROCKTAB (table of porosity and transmissibility as functions of pressure) for different regions is supported
The possibility to specify initial water saturation at given gravity capillary equilibrium (VERTICAL DEPTH_AVE) using SWINIT keyword
SWNEQ keyword for initial fluid distribution
Pseudo pressure option is available for GE format PSEUDOP
Module: Simulator
More options are available:
In CPU+GPU calculation NVidia® Volta® cards are supported
Dynamic toggling of local grid refinement in SCHEDULE (LGRON / LGROFF)
tNavigator TNAVCTRL settings: Faster and more efficient vectorized code for compositional flash and
phase properties calculation is turned on by default (TNAVCTRL VEC_FLASH YES).
GPU calculation of vectorized compositional flash is supported (TNAVCTRL GPU_FLASH).
For thermal model in E3 format: Types of components in standard
conditions are supported (CVTYPES)
Module: Simulator
Licenses and license server
The possibility to install the file license and file for USB key directly from a *.zip archive
New versions of license server (18.1) can now run on active license with expired support (with tNavigator versions 17.4 and earlier)
Limitation of 300 000 blocks for academic licenses is introduced
Licensing
Simulation
3.1 HowToUseWELLTRACK+COMPDATMD
PVT Designer
11.2 HowToUseBlackoilVariants
11.3 HowToCreateCondensateModel
Geology Designer
9.3 How To Create Grid With Y-Faults
9.5 How To Upscale Log Data
9.6 How To Do Facies Modeling
9.7 How To Do Porosity Modeling
9.9 How To Start With Seismic
9.10 How To Interpret Horizons On Seismic
9.11 How To Do The Time To Depth Conversion
9.12 How To Do Volume Estimation
New tutorials Documentation
Thank you for attention!
Full list of new features is available in Release Notes
Rock Flow Dynamics www.rfdyn.com [email protected]