Development of A New Correlation for Estimating Pressure Gradient of Oil- Water Two Phase Flow in A Horizontal Pipe

محورهای موضوعی : Mechanical Engineering

yasha hasanzade ¹ (Department of Chemical Engineering, Mahshahr Branch, Islamic Azad University, Mahshahr, Iran)
seyed ali AlaviFazel ² (Department of Chemical Engineering, Mahshahr Branch, Islamic Azad University, Mahshahr, Iran)
zoha azizi ³ (Department of Chemical Engineering, Mahshahr Branch, Islamic Azad University, Mahshahr, Iran)
seyed mohsen peyghambarzadeh ⁴ (Department of Chemical Engineering, Mahshahr Branch, Islamic Azad University, Mahshahr, Iran)
alireza azimi ⁵ (Department of Chemical Engineering, Mahshahr Branch, Islamic Azad University, Mahshahr, Iran)

تاریخ دریافت : 1400/02/03 تاریخ پذیرش : 1400/06/04 تاریخ انتشار : 1400/09/10

کلید واژه: Flow pattern map, Oil viscosity, pressure gradient, Oil–water flow,

چکیده مقاله :

Pressure gradient of a two phase mixture in a horizontal pipe were experimentally investigated for water/super viscose oil mixtures. The mixture contained oil having a viscosity of 67 cp and density of 0.872 g/cm3, and pure water, flowing through an acrylic pipe having a length and diameter of 6 m and 20 mm, respectively. A high speed digital camera has been used to record visual information. Superficial velocities of water and oil were in the range between 0.18–1.2 m/s and 0.18–0.95 m/s, respectively. The experimental pressure gradient has been compared to the Al-Wahaibi correlation and two-fluid model. The absolute average error for the “two-fluid model” and Al-Wahaibi correlation have been calculated for 30% and 12%, respectively. In this investigation, a new modified correlation is developed on the basis of the Al-Wahaibi correlation, that predicts the values of pressure gradient with an absolute average error of about 9%. The pressure gradient correlation was validated extensively against 11 independent data sources. To our knowledge, this is the best pressure gradient furmola that is published for oil–water flow which includes wide range of operational conditions including fluid properties, pipe diameters and pipe materials. One of the advantages of the new proposed formula is that it also performs well for super viscosity oils.

منابع و مأخذ:

• Kong, R., Kim, S., Characterization of Horizontal Air–Water Two Phase Flow, Nuclear Engineering and Design, Vol. 312, 2017, pp. 266- 276, DOI: 10.1016/j.nucengdes.2016.06.016.


• Angeli, P., Hewitt, G. F., Pressure Gradient In Horizontal Liquid–Liquid Flows, International Journal of Multiphase Flow, Vol. 24, 1999, pp. 1183- 1203, DOI: 10.1016/S0301-9322(98)00006-8.


• Rodriguez, O. M. H., Oliemans, R. V. A., Experimental Study On Oil–Water Flow in Horizontal and Slightly Inclined Pipes, International Journal of Multiphase Flow, Vol. 32, 2006, pp. 323- 343, DOI: 10.1016/j.ijmultiphaseflow.2005.11.001.


• Bannwart, A. C., Rodriguez, O. M. H., Trevisan, F. E., Vieira, F. F., and Carvalho, C. H. M. de, Experimental Investigation On Liquid–Liquid–Gas Flow: Flow Patterns and Pressure-Gradient, Journal of Petroleum Science and Engineering, Vol. 65, 2009, pp. 1- 13, DOI: 10.1016/j.petrol.2008.12.014.


• Hanafizadeh, P., Ghanbarzadeh, S., and HassanSaidi, M., Visual Technique for Detection of Gas–Liquid Two-Phase Flow Regime in The Airlift Pump, Journal of Petroleum Science and Engineering, Vol. 75, 2011, pp. 327- 335, DOI: 10.1016/j.petrol.2010.11.028.


• Hanafizadeh, P., Hojati, A., and Karimi, A., Experimental Investigation of Oil- Water Two Phase Flow Regime in an Inclined Pipe, Journal of Petroleum Science and Engineering, Vol. 136, 2015, pp. 12-22, DOI:10.1016/j.petrol.2015.10.031.


• Oddie, G., Shi, H., Durlofsky, L. J., Aziz, K., Pfeffer, B., and Holmes, J. A., Experimental Study of Two and Three Phase Flows in Large Diameter Inclined Pipes, Journal of Petroleum Science and Engineering, Vol. 29, Apr, 2003, pp. 527- 558, DOI: 10.1016/S0301-9322(03)00015-6.


• Mandal, T. K, Chakrabarti, D. P., and Das, G., Oil Water Flow Through Different Diameter Pipes–Similarities and Differences, Chemical Engineering Research and Design, Vol. 85, 2007, pp. 1123- 1128, DOI: 10.1205/cherd06036.


• Xu, X., Study On Oil–Water Two–Phase Flow in Horizontal Pipelines, Journal of Petroleum Science and Engineering, Vol. 59, 2007, pp. 43- 58, DOI: 10.1016/j.petrol.2007.03.002.


• Chakrabarti, D. P., Das, G., and Ray, S., Pressure Drop in Liquid–Liquid Two Phase Horizontal Flow: Experiments and Prediction, Chemical Engineering Technology, Vol. 28, 2005, pp. 1003- 1009, DOI: 10.1002/ceat.200500143.


• Yiping, L., Hua, Z., Shuhua, W., and Jing, W., Prediction of Pressure Gradient and Holdup in Small Eötvös Number Liquid–Liquid Segregated Flow, Chinese Journal of Chemical Engineering, Vol. 16, 2008, pp. 184- 191, DOI: 10.1016/S1004-9541(08)60060-9.


• Al-Wahaibi, T., Pressure Gradient Correlation for Oil–Water Separated Flow in Horizontal Pipes, Experimental Thermal and Fluid Science, Vol. 42, 2012, pp. 196- 203, DOI: 10.1016/j.expthermflusci.2012.04.021.


• Valle, A., Kvandal, H., Pressure Drop and Dispersion Characteristics of Separated Oil/Water Flow, Two-Phase Flow Modelling and Experimentation, Vol. 42, 1995, pp. 583- 592.


• Nädler, M., Mewes, D., Flow Induced Emulsification in The Flow of Two Immiscible Liquids in Horizontal Pipes, International Journal of Multiphase Flow, Vol. 23, 1997, pp. 55- 68, DOI: 10.1016/S0301-9322(96)00055-9.


• Elseth, G., An Experimental Study of Oil–Water Flow in Horizontal Pipes, Fakultet for Ingeniørvitenskap og teknologi, PhD. Thesis, The Norwegian University of Science and Technology, Porsgrunn, 2001.


• Al-Wahaibi, T., Smith, M., Angeli, P., Effect of Drag-Reducing Polymers On Horizontal Oil–Water Flows, Journal of Petroleum Science and Engineering, Vol. 57, 2007, pp. 334- 346, DOI: 10.1016/j.petrol.2006.11.002.


• Al-Yaari, M., Soleimani, A., Abu-Sharkh, B., Al-mubaiyedh, U., and Al-sarkhi, A., Effect of Drag Reducing Polymers On Oil–Water Flow in A Horizontal Pipe, International Journal of Multiphase Flow, Vol. 35, 2009, pp. 516- 524, DOI: 10.1016/j.ijmultiphaseflow.2009.02.017.


• Yusuf, N., Al-Wahaibi, Y., Al-Wahaibi,T., Al-Ajmi, A., Olawale, A. S., and Mohammed, I. A., Effect of Oil Viscosity On The Flow Structure and Pressure Gradient In Horizontal Oil–Water Flow, Chemical Engineering Research and Design, Vol. 90, 2012, pp. 1019-1030,DOI:10.1016/j.cherd.2011.11.013.