Scaled Model Studies and Numerical Simulation of Inert Gas Injection With Horizontal Wells

Author(s):  
G. Meszaros ◽  
A. Chakma ◽  
K.N. Jha ◽  
M.R. Islam





1994 ◽  
Vol 11 (3) ◽  
pp. 213-226 ◽  
Author(s):  
M.R Islam ◽  
A Chakma ◽  
K.N Jha




1989 ◽  
Author(s):  
D. Oracheski ◽  
S. Farouq Ali ◽  
A. George


2021 ◽  
Vol 692 (4) ◽  
pp. 042002
Author(s):  
Yanyu Zhang ◽  
Xiangyu Wang ◽  
Xiaofei Sun ◽  
Hangfei Gong ◽  
Yunshi Zhang


1999 ◽  
Vol 121 (2) ◽  
pp. 96-101 ◽  
Author(s):  
H. Baca ◽  
J. Smith ◽  
A. T. Bourgoyne ◽  
D. E. Nikitopoulos

Results from experiments conducted in downward liquid-gas flows in inclined, eccentric annular pipes, with water and air as the working fluids, are presented. The gas was injected in the middle of the test section length. The operating window, in terms of liquid and gas superficial velocities, within which countercurrent gas flow occurs at two low-dip angles, has been determined experimentally. The countercurrent flow observed was in the slug regime, while the co-current one was stratified. Countercurrent flow fraction and void fraction measurements were carried out at various liquid superficial velocities and gas injection rates and correlated to visual observations through a full-scale transparent test section. Our results indicate that countercurrent flow can be easily generated at small downward dip angles, within the practical range of liquid superficial velocity for drilling operations. Such flow is also favored by low gas injection rates.



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