Analytical model for predicting frictional pressure drop in upward vertical two-phase flowing wells

Ganat, Tarek Al-Arbi Omar; Hrairi, Meftah; Maulianda, Belladonna; Motaei, Eghbal

doi:10.1007/s00231-019-02565-6

Cited by 4 publications

(1 citation statement)

References 29 publications

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“…Shaahid et al [21] analyzed the effects of different inclination angles on the two-phase frictional pressure drop. In addition, Ganat et al [22] proposed a new method of the frictional pressure drop for the oil-water-gas three-phase flow.…”

Section: Introductionmentioning

confidence: 99%

Frictional Pressure Drop and Liquid Holdup of Churn Flow in Vertical Pipes with Different Viscosities

Liu

Su²,

Lü

et al. 2021

Geofluids

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Churn flow commonly exists in the pipe of heavy oil, and the characteristics of churn flow should be widely understood. In this paper, we carried out air and viscous oil two-phase flow experiments, and the diameter of the test section is 60 mm. The viscosity range of the oil was 100~480 mPa·s. Based on the measured liquid holdup and pressure drop data of churn flow, it can be concluded that, due to the existence of liquid film backflow, positive and negative frictional pressure drop can be found and the change of frictional pressure drop with the superficial gas velocity is related to superficial liquid velocity. With the increase of viscosity, the change rate of frictional pressure drop increases with the increase of the superficial gas velocity. Combining our previous work and the Taitel model, we proposed a new pressure drop model for viscous oil-air two-phase churn flow in vertical pipes. By comparing the predicted values of existing models with the measured pressure drop data, the proposed model has better performance in predicting the pressure drop.

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Section: Introductionmentioning

confidence: 99%