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

1992-11-23

1993-07-20

Bell, Mark L.

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

C09K 700

Patent

active

052289150

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 (i) of acrylamide/vinyl imidazole in a weight percent ratio of from about 95:5 to 5:95, said copolymer (i) having a molecular weight range of from about 100,000 to 3,000,000, and a copolymer (ii) of vinyl pyrrolidone and the sodium salt of vinyl sulfonate in a weight percent ratio of 80:20 to 20:80, said copolymer (ii) 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 (i) to copolymer (ii) 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: 4471097 (1984-09-01), Uhl et al.
patent: 4480693 (1984-11-01), Newlove et al.
patent: 4532052 (1985-07-01), Weaver et al.
patent: 4602685 (1986-07-01), McKenzie et al.
patent: 4610306 (1986-09-01), Reese et al.
patent: 4659750 (1987-04-01), Sedillo et al.
patent: 4674574 (1987-06-01), Savoly et al.
patent: 4683952 (1987-08-01), Peiffer et al.
patent: 4931489 (1990-06-01), Kucera et al.
patent: 4933378 (1990-06-01), Kucera et al.
patent: 4946605 (1990-08-01), Farrar et al.

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