Wells – Processes – In situ combustion
Patent
1978-01-30
1979-04-10
Novosad, Stephen J.
Wells
Processes
In situ combustion
166272, 166306, E21B 4324
Patent
active
041483596
ABSTRACT:
In producing shale oil from a water-productive leached zone of a subterranean oil shale the reservoir pressure is counterbalanced to restrict water production. A generally vertical heated channel is formed by injecting steam into a lower location while producing fluid from an upper location until a steam zone extends substantially between the locations. Oil shale is pyrolyzed within the heated channel by flowing gaseous fluid, which contains noncondensable components and is heated to an oil shale pyrolyzing temperature, upward through the channel. Shale oil is recovered from the fluid flowing upward through the channel while the composition, pressure and rate of flow of that fluid are adjusted to maintain a selected ratio between its oil phase and aqueous phase components.
REFERENCES:
patent: 2874777 (1959-02-01), Tadema
patent: 2969226 (1961-01-01), Huntington
patent: 3400762 (1968-09-01), Peacock et al.
patent: 3460620 (1969-08-01), Parker
patent: 3501201 (1970-03-01), Closmann et al.
patent: 3516495 (1970-06-01), Patton
patent: 3550685 (1970-12-01), Parker
patent: 3593789 (1971-07-01), Prats
patent: 3967853 (1976-07-01), Closmann et al.
Koci Paul F.
Laumbach Dallas D.
Novosad Stephen J.
Shell Oil Company
LandOfFree
Pressure-balanced oil recovery process for water productive oil does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pressure-balanced oil recovery process for water productive oil , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pressure-balanced oil recovery process for water productive oil will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1066908