Page 6 - Petroleum Production Engineering, A Computer-Assisted Approach

Guo, Boyun / Petroleum Production Engineering, A Computer-Assisted Approach Guo-prelims Final Proof page xiv 29.12.2006 10:39am

xiv LIST OF SYMBOLS

viscosity of the effluent at the inlet density of acid, lb m =ft 3
m f r a
temperature, cp r air density of air, lb m =ft 3
gas viscosity, cp in-situ gas density, lb m =ft 3
m G r G
gas viscosity at in-situ temperature and liquid density, lb m =ft 3
m g r L
pressure, cp r m density of mineral, lb m =ft 3
liquid viscosity, cp mixture density at downstream, lbm=ft 3
m L r m2
viscosity of oil, cp density of stock tank oil, lb m =ft 3
m o r o,st
viscosity of the effluent at the surface density of fresh water, 62:4lb m =ft 3
m s r w
temperature, cp r wh density of fluid at wellhead, lb m =ft 3
n Poison’s ratio r i density of fluid from/into layer i, lb m =ft 3
n a stoichiometry number of acid r r average mixture density (specific weight),
n m stoichiometry number of mineral lb f =ft 3
n pf viscosity of power fluid, centistokes s liquid-gas interfacial tension, dyne/cm
u inclination angle, deg., or dip angle from s 1 axial principal stress, psi,
horizontal direction, deg. s 2 tangential principal stress, psi
r fluid density lb m =ft 3 s 3 radial principal stress, psi
mixture density at top of tubing segment, bending stress, psi
r 1 s b
lb f =ft 3 s v overburden stress, psi
mixture density at bottom of segment, lb f =ft 3 s 0 effective vertical stress, psi
r 2 v