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UPDATES & BUG FIXES

NEW FEATURES AND MODULES
NOVA APPS
AUTO QC
Automated quality check and correction of fluid compositions.
AUTO EOS
Automated EoS model development.
SEPARATION
Flowsheeting option.
MODEL AND MODEL PARAMETERS
PR-CPA
Extension of Cubic Plus Association (CPA) model to be applicable with the Peng-Robinson EoS.
WAX DEPOSITION
Wax deposition simulator DepoWax extended to support the Matzain wax deposition model as an alternative to the RRR model.
CaBr2
Revised interaction parameters for H2O-CaBr2 and CaBr2-MEG to improve hydrate predictions at high pressure.
PC-SAFT CHARACTERIZATION
Improved PC-SAFT characterization (SPE-187170-MS).
HEAVY OILS
Improved Heavy Oil Characterization.
PC-SAFT
REGRESSION
Tuning to PVT data using PC-SAFT EoS.
BLACK OIL INTERFACES
PC-SAFT model available in the interface options to Eclipse Black Oil, VIP Black Oil, Nexus Black Oil. and IMEX.
FLASH
MULTI FLASH
The number of phases handled by Multi Flash option increased from 4 to 5.
PVT SIMULATION AND REGRESSION
CVD FOR OILS
A CVD experiment for oil mixtures can be simulated and experimental data used in regression.
PHASE MAPPING
PHASE MAPPING PLOT TOOL
Option to plot type and number of phases (max. 5) in a user defined P & T range.
ASPHALTENES
ASPHALTENE DATA
Data for asphaltene onset pressures and for Asp in STO can be stored in PVTsim Nova database.
Asphaltene simulation results can be compared with experimental data using a new Compare with Asphaltene Data option.
HYDRATE
PH FLASH
Hydrate PH flash option introduced, which enables simulation of the heat to be added to melt hydrates.
SCALE
PT GRID OPTION
Scale formation can be simulated for an entire PT- grid.
2D and 3D plot options showing how scale precipitation develops with P and T.
WATER ANALYSIS
WATER ANALYSIS CONVERSION
Water Analysis Conversion option updated to automatically store converted fluid composition in PVTsim Nova database.
INTERFACES
PROSPER EOS
New option for import of Prosper EoS files.
MULTI PHASE METERS
Multi Phase Meter interface option updated to support Roxar units.


UPDATES AND BUG FIXES


FLUID HANDLING
MIX
Mix option updated to give correct CSP viscosities for mixtures of viscosity tuned fluids.
RECOMBINE
Lumping kept when two common EoS fluids are recombined.
DELUMP
Inconsistency between CPA and SRK parameters corrected.
CHARACTERIZED REGRESSION
Characterized regression updated to support tuning on Vc not only for viscosity experiments, but also for viscosity data points.
CLEAN FOR MUD
Clean for mud “STO Oil + Gas” option updated to also work for extended GC fluids.
QC
Acceptance criterion for STO oil density changed ±0.02 g/cm3.
MODELS AND MODEL PARAMETERS
MEG-TEG
MEG-TEG interaction parameters updated to avoid phase split in systems with both components present.
PVT & RESERVOIR
DEPTH GRADIENT
Bo and Bg included in output and plot.
VISCOSITY DATA FOR GAS CONDENSATES
Viscosity experiments for gas condensates can be simulated and used in regression.
VISCOSITY EXPERIMENT
Viscosity experiment can be simulated as a CVD experiment as an alternative to a differential liberation experiment.
SLIMTUBE
Updated to delete temporary output files.
Phase Viscosities option corrected to give the correct relative mobility of gas and oil.
Phase Viscosities option made the default choice.
Default number of cells and time steps modified to give a better match of the recovery at pressures below MMP.
DEPTH GRADIENT
Bug corrected to give the right CSP viscosities in depth gradient option.
DIFFERENTIAL LIBERATION EXPERIMENT
Bleed made default for the pressure stage to atmospheric pressure.
OBM CLEANING

C7+ ISOMERS
C7+ isomers allowed in contaminated fluid compositions when estimating weight% contaminate of STO oil.
FLASH & PROCESS

H2S
Updated to work when H2S amount input as weight% or mg/l of Total Mixture.
Column header for H2S partition coefficient corrected from Aq/Liq to Liq/Aq.
ASPHALTENES

ASPHALTENE PHASE ENVELOPE
Minimum temperature for Full Asphaltene Phase Envelope can be defined by user.
ASPHALTENE TUNING
Updated to give same tuning results before and after Asp/non-Asp split.
TAR MATS
Asphaltene weight% is included in output from Asphaltene Tar Mats option.
FLOW ASSURANCE

WAX DEPOSITION SIMULATOR DEPOWAX
Simulation time corrected for output in the unit of Day(s).
SCALE
Output concentrations of CO2 and H2S corrected.
Molecular weight of acetic acid corrected.
Corrections made of gas solubilites at high pressure and pH far away from scale precipitation.
WATER ANALYSIS

ION CONCENTRATIONS
Unit for ion concentrations changed from mg/l H2O to mg/l salt water.
INTERFACES

ECLIPSE COMPOSITIONAL
Bug corrected to solve Eclipse Comp Import issue.
COMPVD compositions output with more digits to ensure mole fractions add up to 1.0.
OLGA COMPOSITIONAL TRACKING
Save Fluid option modified to save characterized fluid instead of plus fluid.
ECLIPSE BLACK OIL
Rso output in MScf/bbl with PVCO format.
Rv’s output for multi stage separators corrected for cases with temperature increase from one separator to the next one.
Bug corrected in API versus depth option.
Reference pressure and reference depth output in Rs/Rv and API vs. Depth tables.
OLGA
Updates to always have vapor enthalpies increase with temperature at a given pressure.
LICENSE SYSTEM
UPDATES
Correct message given when all PVTsim licenses are occupied.
License Manager (LMTOOLS) shifted to newer version.
DATABASE
DATABASES OF OLDER FORMAT
Option to open PVTsim Databases of versions 19-21 reintroduced.
NEW COMPONENT
2,2,4 trimethyl pentane added to pure component database.


See More: Pvtsim nova 4.0