An Analysis of Oil/Water Flow Phenomena in Horizontal Pipes

Author(s):  
S. Arirachakaran ◽  
K.D. Oglesby ◽  
M.S. Malinowsky ◽  
O. Shoham ◽  
J.P. Brill
2009 ◽  
Vol 131 (4) ◽  
Author(s):  
Wei Wang ◽  
Jing Gong

In oil-water two-phase dispersed flow, phase inversion may occur when the continuous phase becomes dispersed. This phenomenon, which controls the nature of the phase in contact with the pipe, has a great importance on the corrosion and on the pressure drop, which dramatically affects the delivery ability and operational modality. It is therefore imperative for the phase inversion research to be taken into consideration. However, most of the knowledge on phase inversion is for light mineral oil with low viscosity, few research focuses on high viscosity oil-water phase inversion. Arirachakaran et al. (1989, “An Analysis of Oil/Water Flow Phenomena in Horizontal Pipes,” SPE Professional Product Operating Symposium, Oklahoma, SPE Paper No. 18836) found that critical water fraction when inversion occurred was dramatically reduced with the increment of oil viscosity, and the existing phase inversion models are invalidated. In this paper, an experimental study has been made of high viscosity mineral oil-water flow through a horizontal pipe loop. Results indicate that phase inversion for oil phase with high viscosity occurs much earlier than low viscosity oil, and phase inversion tends to be delayed, with the increment in experimental temperature. The influence of mixture velocities on the inversion process could be neglected in the range of mixture velocities that we studied. As well, inversion point obtain by our experiment are best predicted by the correlation of Arirachakaran et al. (1989, “An Analysis of Oil/Water Flow Phenomena in Horizontal Pipes,” SPE Professional Product Operating Symposium, Oklahoma, SPE Paper No. 18836). Models of Decarre and Fabre (1997, “Phase Inversion Prediction Study,” Rev. Inst. Fr. Pet., 52, pp. 415–424) and Braunerand Ullmann (2002, “Modeling of Phase Inversion Phenomenon in Two-Phase Pipe Flows,” Int. J. Multiph. Flow, 28, pp. 1177–1204), based on minimization of system total energy, seem to be invalidated for high viscosity oil.


2020 ◽  
Vol 59 (47) ◽  
pp. 20892-20902
Author(s):  
Haili Hu ◽  
Jiaqiang Jing ◽  
Sara Vahaji ◽  
Jiatong Tan ◽  
Jiyuan Tu

2011 ◽  
Vol 354-355 ◽  
pp. 41-44
Author(s):  
Hai Qin Wang ◽  
Lei Zhang ◽  
Yong Wang ◽  
De Xuan Li

The experiments were conducted in a horizontal multiphase flow test loop (50mm inner diameter, 40m long) to investigate the flow of oil/water and the influence of an involved gas phase with low flow rate in horizontal pipes, specifically including oil/water flow patterns, cross-section water holdup and pipe flow pressure gradient. The experimental results indicated that the involved gas with low flow rate had a considerable effect on oil/water flow characteristics, which shows the complexity of gas/oil/water three-phase flow. Thus, this effect could not be ignored in design and operation management of oil/gas gathering and transportation system.


Author(s):  
Hai-Yuan Yao ◽  
Jing Gong

In this paper, an experimental research on the oil-water liquid-liquid two-phase flow patterns and their transitions in horizontal pipes are carried out. According to online oil-water flow structures and the analysis of pressure drop signals., different flow patterns are defined and distinguished. A new classification for oil-water flow patterns is proposed. The flow pattern maps are obtained from the experimental data, and the factors affecting the transition mechanism of different flow regimes are discussed. In addition, some semi-theoretical criteria for the transition between different flow patterns are proposed. Especially, an accurate model is developed to predict the critical conditions for phase inversion. Comparisons of the proposed criteria with other experimental data show reasonable agreements.


Author(s):  
Hermes Vazzoler Junior ◽  
Daiane Mieko Iceri ◽  
Juliana Cenzi ◽  
Carlos Keiichi Tanikawa da Silva ◽  
Charlie van der Geest ◽  
...  

1997 ◽  
Vol 12 (03) ◽  
pp. 165-172 ◽  
Author(s):  
J.L. Trallero ◽  
C. Sarica ◽  
J.P. Brill

2015 ◽  
Vol 138 (2) ◽  
Author(s):  
Carlos F. Torres ◽  
Ram S. Mohan ◽  
Luis E. Gomez ◽  
Ovadia Shoham

Flow pattern transition prediction models are presented for oil–water flow in horizontal pipes. The transition between stratified and nonstratified flow is predicted using Kelvin–Helmholtz (KH) stability analysis for long waves. New, simplified, and more practical physical mechanisms/mechanistic models are proposed for the prediction of the transition boundaries to semidispersed and to fully dispersed flow. The proposed flow pattern classification significantly simplifies the flow pattern map for liquid–liquid flow and agrees well with the experimental data.


2009 ◽  
Vol 21 (1-2) ◽  
pp. 25-35
Author(s):  
Christophe Conan ◽  
Sandrine Decarre ◽  
Olivier Masbernat ◽  
Alain Line

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