E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/25
E21B 43/27 (2006.01) C09K 8/82 (2006.01) C09K 8/86 (2006.01)
Patent
CA 1221620
STIMULATION OF OIL AND GAS WELLS WITH PHOSPHATE ESTER SURFACTANTS ABSTRACT: Crude oil and gas production wells, which no longer produce oil or gas utilizing conventional primary and secondary means of recovery, can be returned to produc- tion by treatment comprising addition of a non-aqueous solution of certain phosphate ester surfactants followed by successive treatment with water or a hydrocarbon. Increased production also can be obtained in low-produ- cing oil and gas wells by similar treatment with certain phosphate ester surfactants. Subsequent to treatment of a producer well, the phosphate ester surfactant is forced into the formation utilizing water or a hydro- carbon and said surfactant is allowed to remain in the producing well, for an effective period of at least 12 hours. Thereafter, pumping and/or conventional fluid drive means are then utilized to recover oil or gas from the subterranean oil or gas formation. The amount of non-aqueous surfactant solution utilized is sufficient to permeate the oil or gas subterranean formation in the area immediately adjacent to the producing well bore and up to a radius therefrom of about 20 feet.
477570
Macrae & Co.
Rhodia Inc.
LandOfFree
Stimulation of oil and gas wells with phosphate ester... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Stimulation of oil and gas wells with phosphate ester..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stimulation of oil and gas wells with phosphate ester... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1236720