Experimental Investigation of Two-Phase Oil (D130)-Water Flow in 4″ Pipe for Different Inclination Angles

Shaahid, S.M.; Basha, Mehaboob; Alhems, Luai M.

doi:10.1088/1757-899x/326/1/012013

Cited by 4 publications

(6 citation statements)

References 9 publications

(5 reference statements)

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“…A good agreement has been noticed specifically with the Blasius friction factor. The related equations and graphs are reported in our earlier studies [28,29].…”

Section: Methodsmentioning

confidence: 99%

“…Similar procedure was followed for other angles including; 40°, 60° 90° and for different water cut ratio 0 to 100%. Inlet oil-water flow rates were varied from 2000 to 12000 barrels-per-day (BPD) [28,29].…”

Section: Methodsmentioning

confidence: 99%

“…Our earlier work [28,29] on multiphase flows focused on 4" inch diameter stainless loop/pipe. Flow rates were varied from 4000 to 8000 barrels-per-day (BPD).…”

Section: Introductionmentioning

confidence: 99%

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Effect of Viscosity on Pressure Drop of Oil-Water Two Phase Flow in 6” Horizontal and Inclined Stainless Steel Annulus Pipe

Basha

Shaahid

Alhems

2020

ARFMTS

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Oil-water flow is commonly found in petroleum industry and is generally used for the lubricated transportation of high viscous oil. Despite its importance, behavior of such flows has not been explored to an appreciable extent. Liquid viscosity may change considerably because of changes in temperature as in deep-water oil production. In this experimental work, attention has been focused on effect of viscosity on pressure drop measurements of oil-water annular two-phase flow in a horizontal and inclined 6-inch diameter stainless steel pipe at different flow conditions. Two different mineral oils Exxsol D80 and Exxsol D130 along with water were used as working fluids. Experiments were carried out for different inclination angles including: 0°-90° and for different water cut (WC) ratios (0 to 100%). Inlet oil-water flow rates were varied from 2000 to 12000 barrels-per-day (BPD). For a given flow rate the frictional pressure drop (FPD) has been found to decrease from WC = 0 to WC 20%. Further increase in WC, FPD has been found to increase up to WC 40%. For WC more than 40%, the decrease in FPD is not appreciable. This could be due to phase inversion or change in flow pattern regime. For a given case with WC 40% (horizontal, θ = 0° case, flow rate = 10000 BPD), the FPD of Oil (D130) is more than FPD of Oil (D80) by 7%. This implies Oil (D80) is more suitable for transportation of oil-water two phase flows. For a given case (with WC 40%, 10000 BPD), for D80 oil, for increase in angle from zero degree to 90 degree, the increase in FPD is not appreciable. However, for the above scenario, for D130 oil, for increase in angle from zero degree to 90 degree, the percentage increase in FPD has been found to be 27 %.

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“…A good agreement has been noticed specifically with the Blasius friction factor. The related equations and graphs are reported in our earlier studies [28,29].…”

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Viscosity on Pressure Drop of Oil-Water Two Phase Flow in 6” Horizontal and Inclined Stainless Steel Annulus Pipe

Basha

Shaahid

Alhems

2020

ARFMTS

Self Cite

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“…Several studies have attempted to predict pressure gradients in horizontal and vertical flows using empirical models [4][5][6]. Only very few studies considered inclined flows [7,8]. Liu et al [7] developed flow pattern-based correlations to predict the frictional pressure gradient in tilted smooth tubes.…”

Section: Introductionmentioning

confidence: 99%

Prediction of Pressure Gradient during Condensation in Inclined Heat Exchanger Using Machine Learning Techniques

Adekunle¹,

Adelaja²,

George³

et al. 2022

Preprint

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This study employs machine learning techniquesrandom forest and extra trees -to predict the frictional pressure gradient during convective condensation in an inclined in-tube heat exchanger. The experimental data matrix (663) includes conditions for saturation temperatures of 30, 40, and 50 o C, mass velocity 100-400 kgm -2 s, quality 10-90%, and thirteen inclination angles between -90 o and +90 o for a smooth tube of an internal diameter of 8.38 mm. Based on statistical analysis, the extra trees outperforms the random forest. The average deviation (AD) and mean average deviation (MAD) are 2.88% and 6.72%, respectively, for random forest (RF) and 0.25% and 2.97%, respectively, for extra trees (ET).

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“…Yang et al [20] found that the flow patterns affect the frictional pressure drop. 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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Experimental Investigation of Two-Phase Oil (D130)-Water Flow in 4″ Pipe for Different Inclination Angles

Cited by 4 publications

References 9 publications

Effect of Viscosity on Pressure Drop of Oil-Water Two Phase Flow in 6” Horizontal and Inclined Stainless Steel Annulus Pipe

Effect of Viscosity on Pressure Drop of Oil-Water Two Phase Flow in 6” Horizontal and Inclined Stainless Steel Annulus Pipe

Prediction of Pressure Gradient during Condensation in Inclined Heat Exchanger Using Machine Learning Techniques

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

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