Wells – Processes – Heating – cooling or insulating
Patent
1986-08-29
1991-06-18
Novosad, Stephen J.
Wells
Processes
Heating, cooling or insulating
1661175, 166242, 166269, 166374, 166386, 166387, E21B 4324, E21B 3408, E21B 2303
Patent
active
050242741
ABSTRACT:
An enhanced oil recovery well system and method providing for simultaneous heated vapor or hot liquid injection of usually water into one or more formations in a well through a single conduit. The well system utilizes injection mandrels selected to provide drier steam or wetter steam and hot water to inject for best recovery from a particular formation. One injection mandrel separates and collects wetter steam and hot water from injected steam flow and directs the wet steam and hot water flow through the mandrel while directing steam flow into a formation. The other mandrel has upper and lower means for separating and collecting wet steam and hot water and directs wet steam and hot water flow into a formation while directing steam flow through the mandrel. More than one mandrel may be used for each formation and control means may be installed in either mandrel to control flow into formations. Well systems are monitored and controlled for efficient operation and recovery.
REFERENCES:
patent: 4295796 (1981-10-01), Moore
patent: 4462465 (1984-07-01), Strickland
patent: 4541482 (1985-09-01), Johnston
patent: 4553310 (1985-11-01), Logan
patent: 4646828 (1987-03-01), Schwab, Jr. et al.
Cox Roland
Gay M. H.
Novosad Stephen J.
Otis Engineering Corp.
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