Wells – Processes – Cyclic injection then production of a single well
Patent
1995-05-03
1996-08-20
Suchfield, George A.
Wells
Processes
Cyclic injection then production of a single well
166272, 166279, 166304, 166371, 507233, 507234, 507927, 507929, E21B 4324, E21B 4325
Patent
active
055470220
ABSTRACT:
A composition for, and an improved process of, enhancing petroleum recovery from a petroleum reservoir by injecting said composition into the reservoir through a wellbore are provided. The aqueous composition is derived from a concentrate which includes a defoaming agent, a demulsifying agent, and optionally a stabilizing agent suitable for stabilizing the concentrate as an aqueous emulsion. In one embodiment, the defoaming agent is dispersed in carrier solvent and the concentrate further includes an emulsifying agent suitable for emulsifying the carrier solvent in water. The composition is preferably injected at a high pumping rate directly into the formation through the tubing-casing annulus and allowed to permeate into the reservoir surrounding the wellbore before oil production commences. The composition and method are particularly suited for used in conjunction with steam injection oil recovery techniques.
REFERENCES:
patent: Re32866 (1989-02-01), Cruise
patent: 3481404 (1969-12-01), Gidley
patent: 3548946 (1970-12-01), Engle
patent: 3865544 (1975-02-01), Keil
patent: 4386658 (1983-06-01), Hunt, III
patent: 4595511 (1986-06-01), Seybold et al.
patent: 4603738 (1986-08-01), Oberkirch et al.
patent: 4681164 (1987-07-01), Stacks
patent: 4724907 (1988-02-01), McClaflin
patent: 4844156 (1989-07-01), Hesh
patent: 5110487 (1992-05-01), Current
Juprasert, M. S., "Bullhead acidizing succeeds offshore California", Oil & Gas Journal, Apr. 11, 1994, pp. 47-52.
Davis Bruce W.
Juprasert Max S.
Chevron U.S.A. Inc.
Suchfield George A.
LandOfFree
Heavy oil well stimulation composition and process does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Heavy oil well stimulation composition and process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heavy oil well stimulation composition and process will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2324095