Coating processes – Particles – flakes – or granules coated or encapsulated – Applying superposed diverse coatings or coating a coated base
Patent
1985-02-26
1986-07-01
Jacobs, Lewis T.
Coating processes
Particles, flakes, or granules coated or encapsulated
Applying superposed diverse coatings or coating a coated base
523139, 523144, 523145, 523146, 523147, B05D 700
Patent
active
045979910
ABSTRACT:
A method for producing an improved particulate material for use in treating subterranean formations as a proppant and/or as a fluid loss agent in hydraulic fracturing and as a screening material in gravel packing comprised of heat curable particles capable of forming a cohesive mass, said particles comprised of a high strength center, a coupling agent chemically bound to the center with a heat curable resin coated over the center.
REFERENCES:
patent: 3234159 (1966-02-01), Cooper
patent: 3878159 (1975-04-01), Vargiu et al.
patent: 3969547 (1976-07-01), Isawa et al.
patent: 4090995 (1978-05-01), Smillie
patent: 4469517 (1984-09-01), Cooke
Graham John W.
Sinclair A. Richard
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