Fluid Characterization
Correct fluid characterization is essential to fluid flow simulations. The PVTsim package from Calsep is adapted as a standard for use within the OLGA Software Suite. The PVTsim package provides leading edge capabilities for fluid flow and flow assurance.
The PVT simulation package PVTsim is being used by leading oil producing and operating companies throughout the world - and is used by most OLGA users.
PVTsim Windows licenses for use with OLGA is offered by SPT Group.
Based on extensive data material collected over a period of more than 20 years, PVTsim carries the information from experimental PVT studies into simulation software in a consistent manner and without losing valuable information on the way.
PVTsim allows reservoir engineers, flow assurance specialists and process engineers to combine reliable fluid characterization procedures with robust and efficient regression algorithms to match fluid properties and experimental data. The fluid parameters may be exported to produce high quality input data for reservoir, pipeline and process simulators. PVTsim is petroleum phase behavior at the tip of your fingers.
PVTsim OLGA incl. Hydrate & Multiflash
The PVTsim OLGA package from Calsep provides the fluid handling options needed to generate reliable fluid property tables for standard OLGA simulations and the compositional input for the Compositional Tracking module.
The package carries out fluid characterization based on the fluid composition input. In addition to the OLGA interface options the package has PT flash and phase envelope options and an option for tuning viscosity model parameters to match experimental oil viscosities, The PT flash option handles aqueous components including hydrate inhibitor and salts. The hydrate option allows for accurate simulation of hydrate formation conditions of gas and oil mixtures. The depression of the hydrate formation temperature of the most commonly used hydrate inhibitors can be simulated (MeOH, EtOH, MEG, DEG and TEG) and loss of inhibitors to the hydrocarbon phases is accounted for. If the water contains salts, the influence of these salts on the hydrate formation conditions will also be taken into account. |
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PVTsim Wax
The PVTsim Wax module has options for simulating wax appearance temperature (WAT) and amount of wax precipitated at various PT condtions. The module further supports a Wax PT curve option. Data for WAT, amount of wax in the oil (“wax in STO”) and viscosities of oil affected by solid wax can be tuned to. These tuning options are valuable prior to generating an interface table for OLGA Wax, which table is generated using a separate OLGA Wax interface option. |