Hydrocyclone Separation Efficiency Modeled by Flow Resistances and Droplet Trajectories

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Abstract

The growing demand to optimize the deoiling performance for offshore oil & gas gives the incentive to improve existing control solutions by means of model-based control solutions. This paper proposes a separation efficiency grey-box model of a deoiling hydrocyclone. Grey-box modeling of deoiling hydrocyclones aims to combine knowledge from fluid dynamics with the data-driven parameter estimation to yield better accuracy than black-box derived models while keeping the computational load much lower than CFD-simulations. The model has to be reasonably accurate in all likely operating conditions and be computed in real-time, in order to be beneficial for advanced model-based control. The developed grey-box model is based on flow resistance and oil droplet trajectory analysis. The model functionally describes how the valve openings, inflow rates, and PDR set-points affect separation efficiency of the considered generic deoiling hydrocyclone. The results are reasonable and provide a fundamental overview of how the operational conditions affect separation efficiency. The model can be extended to account for changes in the axial velocity distribution, coalescence and breakup of droplets.
Original languageEnglish
Book seriesIFAC-PapersOnLine
Volume51
Issue number8
Pages (from-to)132-137
Number of pages6
ISSN1474-6670
DOIs
Publication statusPublished - 2018
Event3rd IFAC Workshop on Automatic Control in Offshore Oil and Gas Production OOGP 2018 - Esbjerg, Denmark
Duration: 30 May 20181 Jun 2018
Conference number: 3

Conference

Conference3rd IFAC Workshop on Automatic Control in Offshore Oil and Gas Production OOGP 2018
Number3
Country/TerritoryDenmark
CityEsbjerg
Period30/05/201801/06/2018

Keywords

  • Deoiling
  • Gas
  • Grey-Box Modeling
  • Hydrocyclone
  • Oil
  • Separation Efficiency

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