Basic PVT

The Basic PVT package has all the core functionality needed to develop an equation of state (EoS) model for a reservoir fluid making use of routine PVT data (Saturation Point, Constant Mass Expansion, Constant Volume Depletion, Differential Liberation, Separator Test, Viscosity Experiment).

Up to 5 PVT experiments of each type can be stored with a fluid composition in the database. Two regression options exist to ensure a good match of the PVT data. The Plus Regression option assists the user with suggested tuning parameters. When needed the EoS model can be fine-tuned using the Characterized regression option. The developed fluid model may be exported to Eclipse, Intersect or other reservoir simulators. Should there be a need to also cover gas injection PVT experiments and common EoS models for multiple fluids, the Reservoir Package is the recommended choice.

Modules | Basic PVT

BASE

The BASE module is the gateway to PVTsim’s diverse capabilities for simulating reservoir fluid behavior from reservoir to refinery. Compositional analyses and PVT data from a PVT report are easily entered into and stored in a PVTsim database.

Important features in the Base module include:

• Extensive pure component library
• Input of GC and TBP compositions
• Normal and heavy oil characterization
• CSP and LBC viscosity models
• Flexible component lumping and preset lumping schemes
• Recombination of separator oil & gas
• Mixing or weaving of up to 100 different fluids
• 2 phase flash and phase envelope simulations

PVTsim may be used with the industry standard SRK or PR equations (76 or 78 modification) in their original form or volume corrected. The GERG-2008 ensures accurate results for natural gases. More complex heavy oil phase equilibria can be handled using PC-SAFT equation.

PVT SIMULATION AND REGRESSION

The PVT Simulation & Regression module provides simulation and regression options for the below PVT experiments

–          Saturation Point
–          Constant Mass Expansion
–          Constant Volume Depletion
–          Differential Liberation
–          Separator Test
–          Viscosity Experiment.
–          Swelling^*1)
–          Slimtube/MMP^*1)
–          Equilibrium and Multi Contact^*1)

Up to 5 PVT experiments of each type can be stored with a fluid in the database. Regression options include Plus Regression and Characterized Regression. In the Plus Regression option PVTsim assists the user with suggested tuning parameters. Use the Compare with Data option to get an overview of the match of all experimental data for a fluid.

In the configuration delivered with the Reservoir Package, the module also includes powerful common EoS modeling features with regression to PVT data for up to 100 different fluids. The Multi Fluid Compare with Data option enables an easy comparison of simulated and experimental data for all fluids included in a Common EoS model.

^*1) Not included in the Basic PVT Package

Interfaces | Basic PVT

ECLIPSE

– Eclipse Black Oil (E100)
– Eclipse Compositional (E300)

INTERSECT

– Intersect Black Oil
– Intersect Compositional

RESERVOIR INTERFACES

– More
– CMG
– Nexus
– Prosper/MBAL
– Saphir
– tNavigator

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Understanding what each module can do will make it easier for you to choose the right package

Modules Specification

MODULES

INTERFACES

Basic PVT

The Basic PVT package has all the core functionality needed to develop an equation of state (EoS) model for a reservoir fluid making use of routine PVT data (Saturation Point, Constant Mass Expansion, Constant Volume Depletion, Differential Liberation, Separator Test, Viscosity Experiment).

Modules | Basic PVT

Interfaces | Basic PVT

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