Oil and Gas

SIP-Characterisation and Modelling of Oil-Water Mixtures in Multiphase Flow

A strategic institute program on behaviour of oil water mixtures in multiphase flow

The main objective of the project is to improve the modelling of oil-water mixtures in present tools for design and concept studies of multiphase pipelines, both in terms of increased confidence and in range of applications.

The sub-goals are to:

  • improve basic understanding of the behaviour of oil-water mixtures in pipe flow
  • implement corrosion models in fluid flow modelling tools by taking account for improved modelling of water wetting
  • establish links between bench test measurements, pipe flow behaviour and important fluid rheology parameters
  • develop multiphase flow models, which accommodate rheology parameters

Project Description

Existing multiphase flow models are in need for improvements to meet future challenges and thus remain powerful tools for design and concept studies for the oil industry.

The proposed project will in particular focus on issues related to oil-water mixtures, how to characterise and describe their transportability (rheology) and water wetting properties, and to develop multiphase flow models that accommodate rheology and water wetting parameters, including the effect on corrosion.

The project is divided in two main activities:

  • Perform pipe flow experiments in order to identify important parameters and quantify their effect on the behaviour of oil-water mixtures with regard to wall wetting, dispersion characteristics, local phase fraction distribution, turbulent kinetic energy and droplet size distribution, and use this for improvement of corrosion models with respect to water wetting.
  • Develop bench type apparatus and measurement procedures for characterisation of fluids with respect to chemical and thermo-physical properties, fluid dynamic behaviour and corrosivity. These key properties will be used as input to semi-empirical models, giving as output rheology parameters (mixing properties, inversion, water wetting), which the new multiphase models will utilise.