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LedaFlow Software

Advanced transient multiphase flow simulator

LedaFlow is based on models that are closer to the actual physics of multiphase flow and provides the step change in accuracy and detail needed for longer tiebacks, deeper water and harsher environments. More modelling details can be found in the product sheet. 

LedaFlow Engineering 1D

LedaFlow Engineering 1D is a standalone engineering tool for transient multiphase flow simulation studies of oil, water and gas in wells and pipelines. It is a complete simulator used by Flow Assurance, Process, Production and Reservoir Engineers through the project life cycle to address gas/liquid, thermal, solid and integrity challenges.

The ability to simulate transient or time dependent behaviour means that the operability of the production system can be better understood to ensure a successful design and to maximise production from existing operations.

LedaFlow Point Model

The LedaFlow Point Model is the steady-state plug-in solution for a single location in a well or flowline. This mechanistic model is used to provide initial conditions for transient multiphase flow modelling and make it available to third parties including their steady-state simulation software. 

The LedaFlow Point Model is currently available in the following steady-state simulators

  • Synergi from DNV-GL
  • Maximus from KBC
  • Prosper and GAP from Petroleum Experts
  • Pipesim from Schlumberger
  • VMGSim from Virtual Materials Group
  • Wellflo and Reo from Weatherford

Application Areas

LedaFlow application areas

Research and Development

LedaFlow Technologies DA (LTDA) was established to represent a partnership between ConocoPhillips, KONGSBERG, SINTEF and Total funding and supporting all LedaFlow core physics research and development activities. KONGSBERG has exclusive commercialization rights for LedaFlow across the world.

Read More at the LedaFlow homepage

LedaFlow Validation

Access to experimental/field data is key to model improvements and key to building a tool accurate enough for design purposes. To support the development of LedaFlow, extensive campaigns have been carried out in the industrial-scale Multiphase Flow Laboratory at SINTEF in Trondheim, Norway to provide new high-quality data.

This comes in addition to the more than 12,000 data points already available through the TILDA database (the database of test data acquired at SINTEF’s Multiphase Flow Laboratory). 

Over the years since commercialization, the development of LedaFlow has benefited from close collaboration with its industrial partners through a JIP based forum, LedaFlow Improvements in Flow Technology (LIFT) JIP.

  • Chevron
  • ConocoPhillips
  • ENI
  • Exxon
  • Shell
  • Statoil
  • Total
  • Woodside
  • Lundin

Some recent papers relating to the validation of LedaFlow against field and experimental details are as follows:


Kjølaas, J.; Shmueli, A.; Morin, M. Improvement of LedaFlow for Churn Flow in Vertical Pipes. Proceedings of The 18th International Conference on Multiphase Production Technology; BHR Group Ltd: Cannes, France, 2017; pp 325-343.

Jauseau, N.; Zakarian, E.; Morgan, J.; Zambare, N. Validation of a multiphase flow simulator using three-phase gas condensate field data.Proceedings of The 18th International Conference on Multiphase Production Technology; BHR Group Ltd: Cannes, France, 2017; pp 225-238.

Zakarian, E.; Morgan, J. Prolonged gas-condensate pipeline operation below minimum turndown rate. Proceedings of The 18th International Conference on Multiphase Production Technology; BHR Group Ltd: Cannes, France, 2017; pp 395-409.

Kjølaas, J.; Unander, T. E.; Wolden M.; Shmueli, A.; Holm, H. Pressure Drop Measurements in Low Liquid Loading Three-Phase Flows. Proceedings of The 18th International Conference on Multiphase Production Technology; BHR Group Ltd: Cannes, France, 2017; pp 455-470.


2016 BHRG: Improvement of LedaFlow for low liquid loading conditions J. Kjølaas, SINTEF; H. Holm, Statoil, Norway

2016 BHRG: Liquid loading and multiple solutions in vertical flows – experiments and modelling with LedaFlow J. Kjølaas, A. Shmueli, A. Morin, SINTEF, Norway


BHRG Conference – “Experiments for low liquid loading with liquid holdup - discontinuities in two- and three-phase flows” Jørn Kjølaas, Tor Erling Unander, Marita Wolden (SINTEF Petroleum AS, Norway), Peter S. Johansson, Henning Holm (Statoil, Norway)

BHRG Conference – “Comparisons between engineering software predictions and West of Africa deepwater field data including thermal performances” Christophe CANDELIER, Fabien PAPOT (TOTAL E&P)

BHRG Conference – “Subsea Multiphase Boosting Station System & Controls Optimization” G. Becquin, R. Castane Selga, S. Abrol, A. Busboom (GE Global Research), D. Doder, A. Jain, T. Glomsaker (GE Oil & Gas), M. Hyllseth, C. Ruigrok (Kongsberg Oil & Gas Technologies)

OTC – “Numerical Simulations of High CO2 Content Flows in Production Wells, Flowlines and Risers” OTC-26231-MS J.N.E. Carneiro, M.A. Pasqualette, J.F.R. Reyes, SINTEF Brazil; Espen Krogh, SINTEF Petroleum; S.T. Johansen; SINTEF; J.R.P. Ciambelli, H.T. Rodrigues, R. Fonseca Jr.; CENPES/Petrobras

Rio Pipeline Conference & Exposition 2015 – “Santos Operational Simulation System: Integrated dynamic compositional simulation of multiphase pipeline network and treatment facilities to assist in planning, operation and production management” Tiago Zampieri D’Andrea, Elói Rotava, Caroline Garcia Serpejante, Enio Emanuel Ramos Russo, Alex Furtado Teixeira (Petrobras), Hissam Abdul Basset Khatib (IMC Saste), Anderson Miguel da Silva Inacio, Mariana Di Iorio Monte Bastos, Andréia de Moura Gomes, Kapil Mukati (Kongsberg Oil & Gas Technologies)

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