Method for acidizing subterranean formations

Details Method for acidizing subterranean formations Method for acidizing subterranean formations

1975-12-24

1978-08-01

Novosad, Stephen L.

Wells

Processes

Specific low fluid loss feature for fluid attacking formation

166307, 252 855C, E21B 4327

Patent

active

041037421

ABSTRACT:
Gelled acidic compositions suitable for either matrix acidizing or fracture-acidizing of subterranean formations, and methods of using said compositions in acidizing operations, are provided. Said compositions comprise water, a water-dispersible polymer of acrylamide, an acid, and an aldehyde capable of causing gelation of an aqueous dispersion of said polymer, said acid, and said aldehyde. Preferably a mixture of aldehydes is used. However, either a mixture of aldehydes or a single aldehyde can be used with certain polymers, and in certain methods comprising particular combinations of steps.

REFERENCES:
patent: 3415319 (1968-12-01), Gibson
patent: 3434971 (1969-03-01), Atkins
patent: 3442803 (1969-05-01), Hoover et al.
patent: 3500929 (1970-03-01), Eilers et al.
patent: 3727689 (1973-04-01), Clampitt
patent: 3768565 (1973-10-01), Persinski et al.
patent: 3909423 (1975-09-01), Hessert et al.
patent: 3923666 (1975-12-01), Dill

Affiliated with

Also associated with

Rating

Method for acidizing subterranean formations 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 acidizing subterranean formations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for acidizing subterranean formations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1975839