• PVTsim Nova from 1.0 to 2.0

Updates and Bug Fixes

GENERAL

  • PVTsim NOVA 2 VERSIONS
    • 32 and 64 bit.

FLUID MANAGEMENT

  • DATABASE
    • Disk size of fluid databases reduced significantly.
  • FLUID EXPLORER
    • Direct editing of fluid name in Fluid Explorer.
  • FLUID INPUT
    • More characters allowed in fluid ID fields.
    • Sampling data can be input.
    • HTGC n-paraffin analysis can be input and used in wax calculations.
    • Option for adding lumping scheme from Lumping tab.
    • CSP viscosities can be generated as substitute for real data with LBC viscosity model selected.
  • QC
    • Gas opening pressure corrected to use separator gas composition instead of recombined reservoir fluid. 
    • Check for mud contamination refined.

NEW MODELS

  • CPA (Cubic Plus Association)
    • PT flash.
    • Phase envelope.
    • Saturate with water.
    • PVT simulations.
    • Property Generator.
  • GERG-2008
    • PT flash (non-aqueous).
    • Phase envelope.
    • Property Generator.

MODEL IMPROVEMENTS

  • HV (Huron & Vidal)
    • Gas-water interaction parameters revised.
    • Gas-salt interaction parameters revised.
  • Salts
    • Improved correlation for density of salt water.
    • Improved accuracy of solubility of NaCl, KCl and CaCl2 in water + MEG.
  • Mathias-Copeman (M&C)
    • PR specific parameters for aqueous components.

PVT & RESERVOIR

  • PVT SIMULATIONS
    • Option added for separator correction of CVD and diff lib simulation results.
    • Optional input of injection gas as mole% of total mixture in swelling experiment.
    • A CME and a viscosity experiment can be added for each swelling stage.
    • Material balance check of separator, diff lib and equilibrium and multi contact data.
    • Liquid volume% of Vsat added to output and plots for CME simulations on oils.
    • Inconsistency corrected between multi contact output from PVT simulations and Compare with Data.
  • REGRESSION
    • LBC tuning to gas viscosities enabled.
    • Peneloux correction factor no longer chosen as regression parameter by default.
    • Tuning to critical point on swelling curve as only data point enabled.
  • DEPTH GRADIENT
    • Separator simulations on fluid compositions enabled.

FLASH & PROCESS

  • FLASH
    • K-factors added to output from PT non-aqueous flash.
  • WATER ANALYSIS
    • Conversion to equivalent salt components.

HYDRATE

  • CO2
    • CO2 hydrate parameters revised.
  • Salts
    • Increased solubility of CaCl2, HCOONa, HCOOCs and CaBr2.
    • Option introduced for ignoring salt precipitation.
    • Output corrected to handle multiple solid salt phases.

OPEN STRUCTURE

  • GENERAL
    • Performance optimization.
  • HYDRATE OPEN STRUCTURE 
    • Bug corrected to have MixtureMolePercent function correctly.

INTERFACES

  • GENERAL
    • Info about fluid, database, PVTsim version, date etc. added as comment at top of tables.
    • Input of min. and max. pressures as alternative to specific pressures for VIP Black Oil, MORE Black Oil, IMEX and Nexus Black Oil.
  • OLGA
    • Input of salinity in mg/l.
    • OLGA data plotting tool extended with 3D.
    • Option introduced for correcting illegal property values.
    • Units for GOR and standard conditions density in TAB-file corrected to not write m3 with 3 as superscript.
  • LEDA FLOW
    • Input of salinity in mg/l.
  • IMEX
    • IMEX BLACK OIL and GASWATER_WITH_CONDENSATE “PVT keywords” updated to respectively PVT and PVTCOND.
    • VOLATILE_OIL format added.
  • NEXUS
    • Nexus Black Oil interface (new).
    • Nexus Compositional interface (new).
  • ECLIPSE BLACK OIL
    • Input of reference pressure for water phase properties enabled.
  • ECLIPSE COMP
    • Vertical temperature gradient supported.
  • PROSPER/MBAL
    • Salinity input removed. No longer used after latest table updates.
  • PROSPER EOS
    • Negative acentric factors output correctly.
  • SAPHIR
    • Error corrected in isentropic compressibility.
  • VIP-COMP
    • Line continuation marks (“>”) added.
    • Updated to no longer output equilibrium phases.
  • MPM (Multi Phase Meter)
    • License to multi-phase flash no longer required for fluids without aqueous components.

OTHER

  • RESOLUTION
    • Robustness of resolution detection and scaling improved.
  • LICENSE CHECK
    • Lower response time when trying to access module not in license.
  • EXPORT REPORT
    • Option added for exporting sheets and plots to Word or Excel. Accessed by right-clicking in Output Explorer or clicking button on output sheet.
  • COPY TO WORD
    • Copying of output sheets to Word improved.
  • PRESSURE LIMIT
    • Increased from 2000 atm to 3000 atm.

 

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