7/22/2019 Multi-phase Flow Correlations - Applicability Summarised

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* Beggs-Brill - VERTICAL & HORIZONTAL, SINGLE & TWO-PHASE!

*^ Flanigan, Modified Flanigan, Waymouth -Gas-liquid multi-phase and single-phase gas flow.NOT SINGLE-PHASE LIQUID FLOW!Applicable to horizontal pipes (+/-10 degrees from horizontal).

Duns-Ross - Vertical well only

Hassan-Kabir - two-phase flow up to 80deg inclination

*^ Hagedorn-Brown - empirical correlation for flowing vertical oil wells.

*^ Gray - empirical correlation for condensate & water in vertical wells.

Petalas-Aziz - mechanistic model based on determining flow pattern

* can be used for multi-phase (two-phase) modelling in horizontal wells/pipes inVirtuWell ONLY^ have been modified in VirtuWell to allow for horizontal modelling