Calsep’s main product is PVTsim Nova, a versatile PVT simulation program developed by Calsep for reservoir engineers, flow assurance specialists, PVT lab engineers, and process engineers.
35 Years of PVT Expertise
Calsep is a leading provider of PVT simulation services to the oil & gas industry. Calsep has solved PVT modeling projects in all continents. The projects involve EoS modeling of all types of reservoir fluids, including natural gas, gas condensates, near critical fluids, black oils and heavy oils.
Calsep’s main product is PVTsim Nova, a versatile PVT simulation program for reservoir engineers, flow assurance specialists, PVT lab engineers, and process engineers.
PVTsim Nova
PVTsim takes you all the way from fluid sample to design and process planning. You can quality check your fluid compositions, develop EoS models, handle water, evaluate the risk of solids precipitation and generate input to more than 30 different external simulators including some of the most widely used reservoir, process and flow simulators.
PVTsim Nova is used by more than 300 companies in the oil and gas industry.
Automated Input of Data
With PVTsim Nova 5.1 Calsep supports PRODML and Calsep Excel PVT Templates, which can be used for importing fluid compositions and PVT data into PVTsim in one click.
EoS Modeling Single Fluids
PVTsim offers an automated development of and equation of state (EoS) model. It enables PVTsim users to develop a high quality EoS model within minutes.
Field Wide EoS Modeling
In PVTsim users can develop EoS models for fluids in communication or fluids that will be commingled and produced through the same pipelines and separation process.
Flow Assurance Features
The polar nature of aqueous components calls for advanced models to accurately simulate the mutual solubility between aqueous and hydrocarbon phases.
Interfaces to Reservoir, Flow Assurance and Process Simulators
The interface modules provide easy export to the most widely used reservoir, flow assurance and process software.
Upgrades & Support
PVTsim maintenance gives access to the latest version of PVTsim Nova and technical support from Calsep’s consultants who are specialized in thermodynamic modeling of all kinds of reservoir fluids.
Find your PVTsim Nova Package
Real Time Simulations
Separators, multiphase flow meters, transient flow systems
Calsep has developed a Flash API that allows the user to perform fast and robust flash calculations with PVTsim Nova technology. Calsep’s Flash API can be accessed through Calsep’s Public Cloud solution or it can be installed in your on-premise cloud solution.
Consulting Services
Examples of Recent Projects
Field Wide EoS Modeling
Asphaltenes & Wax
Go into details with Calsep Consulting Services
Develop your PVT modeling skills
With more than 30 years of experience training industry personnel on PVT and phase behavior of reservoir fluids, Calsep offers training programs for reservoir engineers, process engineers, engineers dealing with flow assurance or multi phase flow metering, laboratory staff, and others that need to apply PVT simulation software in their work.
Train and improve your abilities with Calsep
Calsep offers open courses as well as in-house courses to reservoir engineers, process engineers, engineers dealing with flow assurance or multi-phase flow metering, laboratory staff and others needing to apply PVT simulation software in their work.
Latest Tech Talk, Software Updates & Releases
#25 Addressing Compositional Uncertainty in EoS modeling
Accurate fluid compositions are prerequisite to the development of reservoir fluid Equation of State (EoS) models; however, many studies have shown that compositions measured through GC have significant uncertainties in the amount of heavier carbon…
#24 A Thermodynamic Model for Prediction of Solubility of Elemental Mercury in Natural Gas, Produced Water and Hydrate Inhibitors
Introduction The simulation capability for Elemental mercury (Hg) distribution across vapor, liquid hydrocarbon, and water phases has been improved in PVTsim NOVA through the utilization of the original formulations of the Peng-Robinson 76/78 and Soave-Redlich-Kwong…
PVTsim Nova 6.1 to 6.2 (Update)
Update – November 27, 2023 Model and Model Parameters (Update) Bug fixed, which for some fluids caused single-phase liquid thermal conductivity to be calculated as a gas thermal conductivity when using the CSP model. NEW…
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