Cristin-resultat-ID: 1741539
Sist endret: 2. januar 2020 13:46
NVI-rapporteringsår: 2019
Resultat
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2019

Modelling of the wall film in high-rate low liquid loading flows

Bidragsytere:
  • Jørn Kjølaas og
  • Henning Holm

Bok

Om resultatet

Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Publiseringsår: 2019
Sider: 441 - 460
ISBN:
  • 9781855981720
Open Access

Klassifisering

Fagfelt (NPI)

Fagfelt: Anvendt geologi og petroleumsfag
- Fagområde: Realfag og teknologi

Beskrivelse Beskrivelse

Tittel

Modelling of the wall film in high-rate low liquid loading flows

Sammendrag

In this paper we present a detailed analysis of large scale experimental data from the SINTEF Multiphase Laboratory on high-rate low liquid loading flows. The experimental work [1] was funded by Equinor as part of the Tanzania gas field development project [2] [3] [4], and SINTEF was granted access to use the data for improving the accuracy of the pressure drop predictions in LedaFlow. The experimental results showed that a key element for predicting high-rate low liquid loading flows accurately is to account for the droplets that deposit on the walls in the gas zone, creating a wall film. This wall film can have a profound effect on the hydraulic roughness experienced by the gas, and subsequently the frictional pressure drop. Furthermore, the data showed that this effect was particularly important for high liquid viscosities and in three-phase flows, and simulations showed that LedaFlow had a clear tendency to under-predict the pressure drop in such scenarios. To improve this situation, we used the data to derive a model for predicting this complex phenomenon. This paper summarizes the main parts of the data analysis and the development of the wall film model. We show that by introducing this new model into LedaFlow, we were able to significantly improve the agreement with the measurements.

Bidragsytere

Jørn Kjølaas

  • Tilknyttet:
    Forfatter
    ved Prosessteknologi ved SINTEF AS

Henning Holm

  • Tilknyttet:
    Forfatter
    ved Equinor
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Resultatet er en del av Resultatet er en del av

19th International Conference on Multiphase Technology.

Hunt, Alex P.. 2019, BHR Group. Vitenskapelig antologi/Konferanseserie
1 - 1 av 1