Expansive admixture

Details Expansive admixture Expansive admixture

1980-11-13

1982-06-01

Poer, James

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 93, 106 98, 106314, C04B 7353

Patent

active

043326196

ABSTRACT:
An expansive admixture is shown of the type used in cementing oil and gas well bores. Aluminum particles are coated with a gasoline and water insoluble wood resin. The resin coated aluminum particles in combination with activated charcoal and a fluid loss additive provide controlled expansion of the slurry over an extended period of time without detracting from other desirable properties of the slurry.

REFERENCES:
patent: 1782384 (1930-11-01), Greider
patent: 3131075 (1964-04-01), Brooks
patent: 3359225 (1967-12-01), Weisend
patent: 3890157 (1975-06-01), Babcock
patent: 4258790 (1981-03-01), Hale

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