Method for prolonging the useful life of polymeric or blended sc

Details Method for prolonging the useful life of polymeric or blended sc Method for prolonging the useful life of polymeric or blended sc

1992-05-18

1993-01-26

Suchfield, George A.

Wells

Processes

Material placed in pores of formation to treat resident...

1663051, 252 8552, E21B 4312

Patent

active

051815672

ABSTRACT:
A method is disclosed for prolonging the useful life of polymeric scale inhibitors or blends of non-polymeric and polymeric scale inhibitors injected within a formation. This method involves injecting an aqueous solution of polyquaternary amines into the formation. This solution of polyquaternary amines can be injected prior to, simultaneously with, or after the injection of the scale inhibitors. The scale inhibitors are preferably a blend of non-polymeric and polymeric scale inhibitors. Preferably, the polyquaternary amine is a poly-(dimethylamine-co-epichlorohydrin) or a poly-(diallyldimethylammonium chloride).

REFERENCES:
patent: 3021901 (1962-02-01), Earlougher
patent: 3336221 (1967-08-01), Ralston
patent: 3467192 (1969-09-01), Nolan, III et al.
patent: 3481869 (1969-12-01), Jones
patent: 3483925 (1969-12-01), Slyker
patent: 3794194 (1974-02-01), Zecher
patent: 3867286 (1975-02-01), Quinlan
patent: 3885913 (1975-05-01), Redmore
patent: 3966630 (1976-06-01), Quinlan
patent: 3982894 (1976-09-01), Annand et al.
patent: 4191249 (1980-03-01), Sarem
patent: 4234511 (1980-11-01), Buckman
patent: 4462718 (1984-07-01), McLaughlin et al.
patent: 4485874 (1984-12-01), Meyers
patent: 4536292 (1985-08-01), Matz
patent: 4692315 (1987-09-01), Greaves et al.
patent: 4719083 (1988-01-01), Baker et al.
patent: 4741400 (1988-05-01), Underdown
patent: 4779679 (1988-10-01), Snavely, Jr. et al.
patent: 4860829 (1989-08-01), Carlberg
patent: 4913880 (1990-04-01), Chen et al.
patent: 4947934 (1990-08-01), Hen

Affiliated with

Also associated with

Rating

Method for prolonging the useful life of polymeric or blended sc does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for prolonging the useful life of polymeric or blended sc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for prolonging the useful life of polymeric or blended sc will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1408058