Wells – Processes – Chemical inter-reaction of two or more introduced materials
Patent
1993-12-02
1995-02-28
Suchfield, George A.
Wells
Processes
Chemical inter-reaction of two or more introduced materials
166307, 166309, E21B 4327
Patent
active
053928598
ABSTRACT:
The present invention is a method to improve permeability of a formation in the vicinity of a production wellbore. An acid treatment composition is placed in the formation after a foaming composition is injected and a foam created from the foaming composition, thus forcing the acid treatment composition into less permeable strata. The foaming composition contains a sulfate surfactant as a foam stabilization agent. The sulfate hydrolyzes after a time period that is long enough to permit placement of the acid treatment composition. After the sulfate hydrolyzes, it becomes ineffective as a surfactant. Fluids produced from the formation after the acid treatment according to the present invention therefore do not contain significant concentrations of active surfactants, and therefore do not create foams or emulsions in surface separation equipment.
REFERENCES:
patent: 2053285 (1936-09-01), Grebe
patent: 3342256 (1967-09-01), Bernard et al.
patent: 3434545 (1969-03-01), Bombardieri
patent: 3500923 (1970-03-01), Reisberg
patent: 3612179 (1971-10-01), Anderson et al.
patent: 3612182 (1971-10-01), Raifsnider
patent: 3712377 (1973-01-01), Hill et al.
patent: 3724549 (1973-04-01), Dill
patent: 3768564 (1973-10-01), Knox et al.
patent: 3860072 (1975-01-01), Tate
patent: 3890239 (1975-06-01), Dycus et al.
patent: 3937283 (1976-02-01), Blauer et al.
patent: 3946813 (1976-03-01), Tate et al.
patent: 3954142 (1976-05-01), Broaddus et al.
patent: 4044833 (1977-08-01), Volz
patent: 4113011 (1978-09-01), Bernard et al.
patent: 4156464 (1979-05-01), Hussin
patent: 4199027 (1980-04-01), Cox et al.
patent: 4233165 (1980-11-01), Salathiel et al.
patent: 4279305 (1981-07-01), Knapp et al.
patent: 4436156 (1984-03-01), Fredrickson
patent: 4453596 (1984-06-01), Conway et al.
patent: 4495995 (1985-01-01), Chen et al.
patent: 4524002 (1985-06-01), Hashem
patent: 4554082 (1985-11-01), Holtmyer et al.
patent: 4737296 (1988-04-01), Watkins
patent: 4741844 (1988-05-01), Posey, Jr.
patent: 4807703 (1989-02-01), Jennings, Jr.
patent: 4828032 (1989-05-01), Teletzke et al.
patent: 4919827 (1990-04-01), Harms
patent: 5039434 (1991-08-01), Watkins et al.
patent: 5203413 (1993-04-01), Zerhboub
patent: 5238067 (1993-08-01), Jennings, Jr.
Adams Gerald C.
Lawson Jimmie B.
Morgenthaler Lee N.
Christensen Del S.
Shell Oil Company
Suchfield George A.
LandOfFree
Acid stimulation process for production from subterranean format does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Acid stimulation process for production from subterranean format, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acid stimulation process for production from subterranean format will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-841997