Pyrolytic carbon coating of media improves gravel packing and fr

Details Pyrolytic carbon coating of media improves gravel packing and fr Pyrolytic carbon coating of media improves gravel packing and fr

1987-07-30

1989-01-10

Suchfield, George A.

Wells

Processes

Graveling or filter forming

166280, 428403, E21B 4304, E21B 43267

Patent

active

047967013

ABSTRACT:
A pyrolytic carbon coated particle for use in well fracturing and sand control applications comprising: a thermally stable substantially spherical substrate particle (e.g., ceramic composite bead or the like) and a substantially uniform layer of pyrolytically deposited carbon encapsulating said thermally stable substantially spherical substrate particle. Such carbon coated particles exhibit physical properties superior to materials commonly used in gravel pack and well fracturing operations as well as improved chemical resistance to acids, organics and steam.

REFERENCES:
patent: 3237693 (1966-03-01), Huitt et al.
patent: 3481401 (1969-12-01), Graham
patent: 3497008 (1970-02-01), Graham et al.
patent: 3664420 (1972-05-01), Graham et al.
patent: 3945884 (1976-03-01), Freck
patent: 4632876 (1986-12-01), Laird et al.
patent: 4654266 (1987-03-01), Kachnik
patent: 4705108 (1987-11-01), Little et al.

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