Wells – Processes – In situ combustion
Patent
1983-04-21
1984-01-24
Suchfield, George A.
Wells
Processes
In situ combustion
166263, E21B 43243
Patent
active
044270666
ABSTRACT:
Oil is recovered from an oil-bearing reservoir in a process employing an in-situ combustion process utilizing a combustion-supporting gas containing at least 75% by volume pure oxygen, and preferably substantially pure oxygen, and a sequence in which the production well or wells are cyclically throttled. In place of using an in-situ combustion process, mixtures of steam and carbon dioxide or mixtures of steam and low molecular weight C.sub.3 -C.sub.8 hydrocarbons are injected into the reservoir and the production well is cyclically throttled. The production well flow rate is restricted until the bottom-hole pressure of the well has increased to an amount of about 30% to about 90% of the fluid injection pressure at the injection well. Thereafter, the production well is opened and oil is recovered therefrom as the bottom-hole pressure declines. The throttled production cycle may be repeated at appropriate intervals during the process.
REFERENCES:
patent: Re30219 (1979-06-01), Lindquist
patent: 2390770 (1945-12-01), Barton et al.
patent: 3064728 (1962-11-01), Gould
patent: 3072185 (1963-01-01), Bond et al.
patent: 3174543 (1965-03-01), Sharp
patent: 3434541 (1969-03-01), Cook et al.
patent: 3999606 (1976-12-01), Bandyopadhyay et al.
patent: 4127172 (1978-11-01), Redford et al.
patent: 4252191 (1981-02-01), Pusch et al.
McKillop Alexander J.
Miller Lawrence O.
Mobil Oil Corporation
Powers, Jr. James F.
Suchfield George A.
LandOfFree
Oil recovery method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Oil recovery method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oil recovery method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1282700