2021 Latest Features
Improved corrosion model
OLGA now includes the updates from the NORSOK M-506 standard, incorporating organic (acetic) acids in the computation of pH. With this, OLGA can now accurately simulate the effects of this on the corrosion rate
Pressure Enthalpy (PH) tables in OLGA
This functionality allows users to utilize equation-of-state selections for pressure/enthalpy calculations for single component systems
Improved scripting capabilities for OLGA
OLGA now includes a Python API wrapper for the OLGA messaging SDK. This extends the scripting capabilities in addition allowing users to take advantage of this powerful tool
FieldTwin integration to OLGA for profile generation and import
FieldTwin design from FutureOn enables users to build and visualize a digital copy of their physical assets. OLGA 2021.1 allows the import of profiles from FieldTwin directly to the OLGA profile generator to use for further analysis and simulation.
Achieve higher accuracy when operating around critical point
The computational procedure for speed of sound has been improved. This ensures higher accuracy when operating around the critical point
Enhanced flexibility for high-pressure protection system design
OLGA 2021.1 introduces improved flexibility and usability for users to assist in design of high-pressure protection systems and the associated modelling of the scenarios
OLGA 2021 Features
Improved functionality for pure CO2
Several improvements for existing CO2 capabilities have been implemented—including an improved table for single component CO2 option, improvements for the viscosity model, and priority fixes for tuning of mass transfer rate for a single-component model.
Improved handling of low-pressure situations?
It is now possible to use a special low-pressure handling feature. When activated, if below a defined pressure threshold, the OLGA simulator calculates the fluid properties and flashing with special consideration to avoid numerical problems.
New mass-based option of injection rate calculations
OLGA 2020.2 introduces a new key in the inflow performance relationship (IPR) keywords. The key can be used to select how to convert the volume flow rate of reservoir fluid at standard conditions to in situ injection rate and improves usability for such scenarios.
Better prediction of pressure drop
The HD flow model has been updated to improve its accuracy for gas condensate production systems. Extensive improved pressure-drop predictions at high gas rates for low liquid loading.
More accurate water accumulation?
The momentum mixing across the oil/water interface has been reduced to increase oil-water slip and increase water accumulation for gravity dominated flow at high gas flow rates.
New slug initiation model
The slug initiation model is extended to include initiation of slug bubbles in bubbly flow improving prediction of slug dynamics in liquid dominated systems.
Improved pig modeling capabilities
Improved pig model capabilities to simulate complex pigging scenarios involving long traveling distances, complicated pipeline geometry as well as multiple pig trains with large pressure and/or liquid discontinuities across the pigs.
HA model used for aqueous phase
The CSMA High Accuracy (HA) model for aqueous phase properties is used in OLGA Compositional Tracking improving accuracy when modelling aqueous component mixtures.
OLGA and Symmetry integration
The integration between OLGA and Symmetry enables integration between upstream and process operations. High performance communication yields efficient data transfer and rapid insight.