Onset of Separated Water-Layer in Three-Phase Stratified Flow

M. Er (), R. Mohan (), E. Pereyra (), O. Shoham (), G. Kouba () and C. Avila ()
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M. Er: The University of Tulsa
R. Mohan: The University of Tulsa
E. Pereyra: The University of Tulsa
O. Shoham: The University of Tulsa
G. Kouba: Chevron Energy Technology Company
C. Avila: Chevron Energy Technology Company

Chapter Chapter 16 in Integral Methods in Science and Engineering, 2015, pp 177-194 from Springer

Abstract: Abstract The onset to separated water-layer in three-phase gas-oil-water stratified flow in horizontal pipes is studied theoretically and experimentally. The objective is to determine the transition boundary between the separated liquid-phase and the dispersed liquid-phase in three-phase stratified flow. An experimental facility was constructed, enabling data acquisition under horizontal three-phase stratified flow. A total of 75 experimental runs were conducted varying the water cut between 5% and 40%. The results are presented in the form of flow pattern maps, including the transition boundary between the two liquid-phase flow configurations. The transition mechanism is the occurrence of large waves at the oil-water interface, which reach the bottom of the pipe, swiping the water layer and dispersing it. A mechanistic model was developed for the prediction of the transition boundary between the separated and dispersed liquid-phase under three-phase stratified flow. The proposed model requires as input the three-phase stratified flow variables, which are determined based on the Taitel et al. (1994) model. The transition boundary is then predicted based on the proposed flow mechanism, utilizing a simple Froude number criterion. The model predictions of the transition boundary between the separated and dispersed liquid-phase flow show a good agreement with the acquired experimental data.

Keywords: Three-phase flow; Stratified; Dispersed liquid phase; Separated liquid phase (search for similar items in EconPapers)
Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-319-16727-5_16

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DOI: 10.1007/978-3-319-16727-5_16

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