Oil recovery

Details Oil recovery Oil recovery

E - Fixed Constructions

21

B

166/39

E21B 43/24 (2006.01) E21B 43/243 (2006.01)

Patent

CA 1289868

ABSTRACT Oil is recovered from an underground formation by the use of steam and a gas rich in oxygen. In a priming stage, high quality saturated steam or superheated steam is injected into the formation to raise the reservoir temperature, in the vicinity of injection, to the combustion temperature of the oil. Then, in a combustion stage, the injection of steam is continued and oxygen-containing gas is injected as well, so that local combustion of oil occurs. This results in further heating of the steam and the generation of hot combustion gases, increasing the mobility of the oil and creating pressure drive. The priming and combustion stages may be part of a cyclic steam stimulation ("huff and puff") method or a steam flooding method. Special expedients are provided for the safe use of oxygen and steam.

527166

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1252345