000 02379nab a2200229 4500
005 20260520004415.0
008 260224s2012 xxu ing
041 _aInglés
245 0 0 _aLiquid Entrainment in Annular Gas/Liquid Flow in Inclined Pipes
260 _a
_b
_cjun. 2012
270 _a28/01/2013 ; 28/01/2013
300 _a13 p. ; 617-630
520 _aTranscripción del resumen del autor: Entrainment fraction is one of the key parameters in many applications, including wellbore and flowline design, separator design, wellbore loading, and corrosion inhibition. This study provides the first comprehensive entrainment data and their critical analysis for a full range of inclination angles ranging from horizontal to vertical in 76.2-mm-internal-diameter (ID) pipes. Experiments were conducted to investigate the effect of pipe inclination on entrainment fraction in air/water annular flow with inclination angles of 0, 10, 20, 45, 60, 75, and 90° from horizontal. Two techniques were used to measure the entrainment fraction: film removal and isokinetic sampling. The experimental results were compared with existing models and correlations, and the best predicting methods were determined for all flow orientations. An inclination effect on entrainment fraction was observed. This effect occurred at low superficial gas velocities and was more prominent for higher superficial liquid velocities. Using the present study data, the Paleev and Filipovich (1966) correlation was found to be the most accurate in predicting entrainment fraction. On the basis of all available data, the Pan and Hanratty (2002b) correlation performed the best in predicting entrainment fraction in all pipe orientations. For vertical annular flow, the Oliemans et al. (1986) correlation predicted entrainment fraction more accurately. The Pan and Hanratty (2002b) correlation was the most accurate in predicting entrainment fraction for horizontal annular flow. The Wallis (1969) correlation and the mechanistic model developed by Mantilla (2008) most accurately predicted the entrainment fraction for inclined annular flow.
581 _a2
773 0 _tSPE Journal
_g17
942 _cARTICULO
100 1 _aMagrini, K.L.
_952943
100 1 _aSarica, C.
_952938
100 1 _aAl-Sarkhi, A.
_952937
100 1 _aZhang, H.Q.
_919973
999 _c187557
_d187557