E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 43/24 (2006.01)
Patent
CA 2358555
The pressure at which cold water is initially injectable into an oil sand formation is determined. In the practice of steam-assisted gravity drainage in that formation, steam is injected at a pressure greater than the cold water initial injectivity pressure but no more than 1500 kPa grater than that pressure.
Ito Yoshiaki
Japan Canada Oil Sands Limited
Johnson Ernest Peter
LandOfFree
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