SPE Annual Technical Conference and Exhibition 1988
DOI: 10.2118/18217-ms
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Oil/Water Flow Structure Measurements in Inclined Pipes

Abstract: Oil-water flow structures are mapped in 10 em and 20 em ID pipes at deviation angles between 5° and 65°. The slip velocity V s between oil and water is independent of the flow-rate Qt and generally lower in the smaller pipe. At low oil fractions all the oil gathers at the upper side of the pipe. At medium fractions, the radial water fraction gradient is constant with Qt and the water content: V s is related to the velocity of internal gravity waves due to the mixture density gradient. The relation between thes… Show more

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