Wells – Processes – Distinct – separate injection and producing wells
Patent
1989-10-17
1990-11-13
Suchfield, George A.
Wells
Processes
Distinct, separate injection and producing wells
166265, 166272, 166303, E21B 4324, E21B 4338
Patent
active
049695215
ABSTRACT:
A method of ameliorating two-phase flow segregation during wet steam injection in a vertical injection well wherein a compartmentalized tray of variable depth is utilized. This tray traps a liquid phase of the steam near each perforation. A hole within the tray allows steam to pass through to a lower level in the well. In this manner, the liquid phase is held up near the perforations. Steam and water thus pass into the formation uniformly at each perforation. The degree of segregation may be controlled by the tray's depth. A deeper tray allows more water to be trapped near the upper perforations. A shallow tray favors segregation within the wellbore. More than one tray can be used.
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Malone Charles A.
McKillop Alexander J.
Mobil Oil Corporation
Speciale Charles J.
Suchfield George A.
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