Fluid loss control additives for oil well cementing compositions

Details Fluid loss control additives for oil well cementing compositions Fluid loss control additives for oil well cementing compositions

1990-06-11

1991-06-18

Michl, Paul R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524 5, 525204, C09K 700, C08B 11193, C08B 1100, C08B 1112

Patent

active

050250400

ABSTRACT:
A cementing composition useful in cementing oil, gas and water wells, comprising water, hydraulic cement and an effective amount of water soluble fluid loss additive comprised of a blend of a copolymer of acrylamide/vinyl imidazole in a weight percent ratio of from about 95:5 to 5:95, said copolymer having a molecular weight range of from about 100,000 to 3,000,000, and a terpolymer of acrylamide/acrylamidomethylpropane sulfonic acid sodium salt/vinyl imidazole in a weight percent ratio of 60:20:20, said terpolymer having a molecular weight range of from about 100,000 to 3,000,000. The blend is comprised of a weight percent ratio of copolymer to terpolymer in the range of 20:80 to 80:20. The composition can also optionally include a dispersant such as sodium or potassium salts or a sulfonated naphthalene formaldehyde condensate.

REFERENCES:
patent: 3197428 (1965-07-01), Siegele
patent: 3359225 (1967-12-01), Weisend
patent: 3491040 (1970-01-01), Giugliemelli et al.
patent: 4015991 (1977-04-01), Persinski et al.
patent: 4471097 (1984-09-01), Uhl et al.
patent: 4681634 (1987-07-01), Roca et al.
patent: 4931489 (1990-06-01), Kucera et al.
patent: 4933378 (1990-06-01), Kucera et al.

Affiliated with

Also associated with

Rating

Fluid loss control additives for oil well cementing compositions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fluid loss control additives for oil well cementing compositions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluid loss control additives for oil well cementing compositions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-146241