Enhanced oil recovery

Details Enhanced oil recovery Enhanced oil recovery

1977-09-09

1979-02-27

Novosad, Stephen J.

Wells

Processes

Placing fluid into the formation

166273, E21B 4322, E21B 4325

Patent

active

041414179

ABSTRACT:
A process for petroleum recovery from an underground deposit by injecting hydrogen-rich gas in the absence of added hydrogenation catalysts into the underground deposit, the gas and deposit being at temperatures of less than 300.degree. F., maintaining the hydrogen-rich gas in contact with the petroleum at temperatures of less than 300.degree. F. for a time sufficient to reduce to desired levels viscosity and sulfur content of the petroleum by reaction with the hydrogen followed by recovery of the petroleum from the underground deposit. One embodiment is specifically set forth injecting carbon dioxide into the underground deposit after the reaction of the petroleum and hydrogen to increase the petroleum mobility ratio and to utilize both the hydrogen and carbon dioxide produced by partial oxidation of produced petroleum at the well site and resulting in as low as down to about 20 percent of the original oil in place remaining in the reservoir.

REFERENCES:
patent: 2595979 (1952-05-01), Pevere et al.
patent: 2623596 (1952-12-01), Whorton et al.
patent: 3084919 (1963-04-01), Slater
patent: 3193006 (1965-07-01), Lewis
patent: 3208514 (1965-09-01), Dew et al.
patent: 3327782 (1967-06-01), Hutsak
patent: 3598182 (1971-08-01), Justheim
patent: 3766982 (1973-10-01), Justheim
patent: 3811502 (1974-05-01), Burnett

Affiliated with

Also associated with

Rating

Enhanced oil recovery does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Enhanced oil recovery, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Enhanced oil recovery will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-718584