Combined thermal and solvent stimulation

Details Combined thermal and solvent stimulation Combined thermal and solvent stimulation

E - Fixed Constructions

21

B

166/31

E21B 43/28 (2006.01)

Patent

CA 1213825

COMBINED THERMAL AND SOLVENT STIMULATION ABSTRACT This invention provides a method for recovering heavy crude oil from an underground reservoir penetrated by a well, which comprises (a) heating the first 10-20 feet of the reservoir surrounding the wellbore with steam at a temperature below coking temperature but sufficient to increase the temperature 4-93°C (40-200°F) above the reservoir temperature; (b) producing the formation until most of the injected water is produced; (c) injecting into the reservoir a solvent optionally heated to at least the temperature at which it is desired to maintain the reservoir; (d) producing a solvent-crude mixture; and (e) repeating steps (c) and (d).

419672

Affiliated with

Also associated with

Rating

Combined thermal and solvent stimulation does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1288223