Effect of Slug Flow on CO2 Corrosion
(0) Multiphase flow induced CO2 corrosion has resulted in serious losses in oil and gas production. In this paper, gas-liquid two-phase vertical upward slug flow has been analyzed from aspects containing flow structure, hydrodynamic characteristics, mass transfer characteristics and their effects on pipe wall and corrosion product film, and it is found that slug flow has a distinct effect on transports of corroding species to and of corrosion products from the wall, momentum interchange between fluid and wall and the formation and damage of corrosion product film. In addition, the transports of corrosive species and corrosion product are also an important step in CO2 corrosion process. It is assumed that the slug flow induced CO2 corrosion of pipeline is dependent on the non-linear coupling of the characteristics including the shear stress, the normal stress, the mass transfer coefficient, and the electrochemical reaction.
Slug flow Hydrodynamic characteristics Mass transfer characteristics Corrosion product film Carbon dioxide corrosion
Y.B.Zhang K.Yan D.F.Che
State Key Laboratory of Multiphase Flow in Power Engineering, Xian Jiaotong University, Xian,China
国际会议
西安
英文
403-409
2009-07-11（万方平台首次上网日期，不代表论文的发表时间）