Experimental Study of Oil-Water Flow in Inclined Pipes

Abstract

Pressure loss and water holdup data were measured for oil-water flow in 1.5-in-dia inclined pipe with inclination angles from ± 30 deg to ± 90 deg from horizontal. Pressure losses were higher than calculated with available techniques, with maximum values near the phase inversion. Effects of input liquid fraction and inclination angle on friction pressure gradient are presented. Water holdup correlations for predicting in-situ liquid fractions are given.