Complex Flow Design AS

Complex Flow Design AS is a provider of consultancy services for the energy industry. The company provides contract research and development services within numerical simulations and analysis. Complex Flow Design develops stat-of-the-art methods and software tools for making realistic numerical simulations of multi-phase flow in process, hydraulic and sedimentation engineering. The framework for these numerical simulations is based upon general-purpose computational fluid dynamics (CFD) software.

Deterministic process models in combination with paleo-topographic seafloor maps provided by modern 3D seismic may offer important insights in the spatial and temporal distribution of potential hydrocarbon- bearing turbidite successions. The analysis of different possible scenarios obtained provides cost-effective solutions for reservoir understandings.

Complex Flow Design provides consultancy work to perform field case studies of 3D sedimentary architecture and reservoir geometry.

Turbidity currents
Complex Flow Design, CFD, Turbidity current flow in deep-sea setting

Turbidity currents are the most important mechanism for the erosion, transport and deposition of sand in the deep-sea setting and one of the main phenomena leading to the formation of oil and gas reservoirs in deep water deposits. The flow characteristics of turbidity currents are difficult and expensive to observe and study from the modern environment, while their experimental small scale approximations are typically hampered by scaling issues, unrealistic flume geometries, and short durations. Computational fluid dynamics (CFD) is a tool for numerical solution of the physical equations describing fluid flow and sediment transport.


MassFLOW-3DTM simulation software provides detailed insights into the processes of turbidity currents All principal hydraulic properties of the flow (e.g., velocity, density, sediment concentration, apparent viscosity, turbulence intensity, bottom shear stress) and its responses to topography can be continuously monitored in three dimensions over the whole duration of the turbidity current.

The MassFLOW-3DTM software has been used to simulate turbidite deposition in the Ormen Lange field, offshore Norway. The basin-floor topography used was the basal surface of the reservoir’s Egga Unit, derived from 3D seismics combined with back-stripping and decompaction.

A few tens of identical large-scale turbidity currents have been run over the topographic surface to monitor their changing velocity field and sediment dispersal pattern.


Complex Flow Design, CFD, Realistic deposition of sand in Ormen Lange gas fieldMassFLOW-3DTM software platform for integrated modeling and simulations of sediment gravity flows.

MassFLOW-3DTM deterministic process modeling
A model based on the new methods of computational fluid dynamics may serve as a robust predictive tool to;

  • Test play concepts and reduce uncertainty of geological models
  • Improve the understanding of mass flow processes
  • Simulate transport and spatial distribution of sediments
  • Visualize the evaluation of the whole depositional system

MassFLOW-3DTM reservoir characterization
This approach may aid in the description of deep-water reservoir rocks, namely to;

  • Build the stratigraphic anatomy of gravity-flow deposits
  • Identify preservation and distribution of permeability barriers
  • Model complex reservoir heterogeneities
  • Perform sensitivity and risk analysis
Complex Flow Design AS
+47 7354 6366