Friction Factor Determination for Horizontal Two-Phase Flow Through Fully Eccentric Annuli

Metin C. O. , Ozbayoglu M. E.

PETROLEUM SCIENCE AND TECHNOLOGY, cilt.27, sa.15, ss.1771-1782, 2009 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 27 Konu: 15
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1080/10916460802686178
  • Sayfa Sayıları: ss.1771-1782


In this study, empirical friction factor correlations were developed for two-phase stratified-and intermittent-flow patterns through horizontal fully eccentric annuli. Two-phase flow hydraulics were investigated, and a flow pattern prediction model is proposed. The friction factor correlations were validated using experimental data collected at the multiphase flow loop METU-PETE-CTMFL. Two different geometrical configurations were used during experiments-that is, 0.1143 m inner diameter (ID) casing, 0.0571 m outer diameter (OD) drillpipe; and 0.0932 m ID casing, 0.0488 m OD drillpipe. The eccentric annuli has been represented by representative diameter d(r). A new mixture Reynolds number based on liquid holdup is proposed for friction factor determination.