Pressure drop and flow pattern of oil–water flow for low viscosity oils: Role of mixture viscosity

2015 ◽  
Vol 73 ◽  
pp. 90-96 ◽  
Author(s):  
A. Mukhaimer ◽  
A. Al-Sarkhi ◽  
M. El Nakla ◽  
W.H. Ahmed ◽  
L. Al-Hadhrami
Keyword(s):  
Pressure Drop ◽  
Flow Pattern ◽  
Water Flow ◽  
Low Viscosity ◽  
Oil Water ◽  
Mixture Viscosity

OIL-WATER FLOW IN HORIZONTAL PIPES: A FLOW PATTERN AND PRESSURE DROP STUDY

2009 ◽  
Vol 21 (1-2) ◽  
pp. 25-35
Author(s):  
Christophe Conan ◽  
Sandrine Decarre ◽  
Olivier Masbernat ◽  
Alain Line
Keyword(s):  
Pressure Drop ◽  
Flow Pattern ◽  
Water Flow ◽  
Horizontal Pipes ◽  
Oil Water

Effect of water salinity on flow pattern and pressure drop in oil–water flow

2015 ◽  
Vol 128 ◽  
pp. 145-149 ◽  
Author(s):  
A. Mukhaimer ◽  
A. Al-Sarkhi ◽  
M. El Nakla ◽  
W.H. Ahmed ◽  
L. Al-Hadhrami
Keyword(s):  
Pressure Drop ◽  
Flow Pattern ◽  
Water Flow ◽  
Water Salinity ◽  
Effect Of Water ◽  
Oil Water

Experimental and Simulated Studies of Oil/Water Fully Dispersed Flow in a Horizontal Pipe

2019 ◽  
Vol 141 (11) ◽  
Author(s):  
D. S. Santos ◽  
P. M. Faia ◽  
F. A. P. Garcia ◽  
M. G. Rasteiro
Keyword(s):  
Pressure Drop ◽  
Drag Coefficient ◽  
Cross Section ◽  
Numerical Study ◽  
Liquid Paraffin ◽  
Water Mixture ◽  
Horizontal Pipe ◽  
Dispersed Flow ◽  
Oil Water ◽  
Mixture Viscosity

The flow of oil/water mixtures in a pipe can occur under different flow patterns. Additionally, being able to predict adequately pressure drop in such systems is of relevant importance to adequately design the conveying system. In this work, an experimental and numerical study of the fully dispersed flow regime of an oil/water mixture (liquid paraffin and water) in a horizontal pipe, with concentrations of the oil of 0.01, 0.13, and 0.22 v/v were developed. Experimentally, the values of pressure drop, flow photographs, and radial volumetric concentrations of the oil in the vertical diameter of the pipe cross section were collected. In addition, normalized conductivity values were obtained, in this case, for a cross section of the pipe where an electrical impedance tomography (EIT) ring was installed. Numerical studies were carried out in the comsolmultiphysics platform, using the Euler–Euler approach, coupled with the k–ε turbulence model. In the simulations, two equations for the calculation of the drag coefficient, Schiller–Neumann and Haider–Levenspiel, and three equations for mixture viscosity, Guth and Simba (1936), Brinkman (1952), and Pal (2000), were studied. The simulated data were validated with the experimental results of the pressure drop, good results having been obtained. The best fit occurred for the simulations that used the Schiller–Neumann equation for the calculation of the drag coefficient and the Pal (2000) equation for the mixture viscosity.

Investigation of the Flow Pattern Transition Behaviors of Viscous Oil–Water Flow in Horizontal Pipes

2020 ◽  
Vol 59 (47) ◽  
pp. 20892-20902
Author(s):  
Haili Hu ◽  
Jiaqiang Jing ◽  
Sara Vahaji ◽  
Jiatong Tan ◽  
Jiyuan Tu
Keyword(s):  
Flow Pattern ◽  
Water Flow ◽  
Horizontal Pipes ◽  
Viscous Oil ◽  
Flow Pattern Transition ◽  
Oil Water

Pressure Drop Measurements in Venturi Meters of Different Beta Ratios for Oil–Water Flow Experiments

2018 ◽  
Vol 43 (11) ◽  
pp. 6355-6374
Author(s):  
Mujahid O. Elobeid ◽  
Aftab Ahmad ◽  
Abdelsalam Al-Sarkhi ◽  
Luai M. Alhems ◽  
Syed M. Shaahid ◽  
...  
Keyword(s):  
Pressure Drop ◽  
Water Flow ◽  
Oil Water ◽  
Flow Experiments

Uncertainty Analysis for the Measurement of Oil-Water Flow Parameters, Part II: Pressure Drop

2020 ◽  
Vol 15 (1) ◽  
pp. 1-7
Author(s):  
A. Abubakar
Keyword(s):  
Pressure Drop ◽  
Water Flow ◽  
Flow Rate ◽  
Tap Water ◽  
Standard Uncertainty ◽  
Water Volume ◽  
Water Mixture ◽  
Oil Water ◽  
Pressure Transmitter ◽  
Inclined Pipes

The need to ensure qualitative and reliable measurement of pressure drop of the oil-water flow cannot be over emphasized. In this regard, this study focused on the investigation of uncertainty in the measurement of pressure drop of oil-water flow in different acrylic pipe inclinations (0, +5ᴼ, +10ᴼ and -5ᴼ) and diameters (30.6-, 55.7- and 74.7-mm ID). The working fluids were tap water and mineral-based hydraulic oil (Shell Tellus S2 V 15), with medium viscosity and density of 24 cP and 872 kgm-3 respectively while the interfacial tension between the water and the oil was 12.9 mN/m at 25 ᴼC. The selected flow conditions were 0.5 and 1.0 m/s mixture velocities each at 0.1, 0.5 and 0.9 input water volume fractions. The repeatability, accuracy of the pressure transmitter, flow rate of the oil-water mixture and holdup (particularly for the inclined flow) were the sources of errors in the measurement of the pressure drop. The results showed that the average relative uncertainties in the pressure drop in 30.6-mm ID pipe were ±4.6 %, ±10.8 %, ±11.2 % and ±10.8 % in the 0ᴼ, +5ᴼ, +10ᴼ and -5ᴼ inclined flows respectively. Similarly, the average relative uncertainties in the pressure drop in the horizontal 55.7-mm and 74.7-mm ID pipes were ±5.7 % and ±7.5 % respectively. The largest contribution to the uncertainty in the pressure drop came from the flow rate and water holdup in the horizontal and inclined pipes respectively. The least contribution in both  horizontal and inclined pipes came from the accuracy of the pressure transmitter. Key words: Oil-water flow; Pressure drops; Standard uncertainty, Combined standard uncertainty; Expanded uncertainty

Horizontal oil-water flow in small diameter tubes. Pressure drop

1997 ◽  
Vol 24 (2) ◽  
pp. 231-239 ◽  
Author(s):  
A. Beretta ◽  
P. Ferrari ◽  
L. Galbiati ◽  
P.A. Andreini
Keyword(s):  
Pressure Drop ◽  
Water Flow ◽  
Small Diameter ◽  
Oil Water
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