Acid soluble coating for well screens

Details Acid soluble coating for well screens Acid soluble coating for well screens

1979-07-11

1980-12-16

Novosad, Stephen J.

Wells

Processes

Graveling or filter forming

166205, 166296, E21B 3708, E21B 4304, E21B 4308, E21B 4310

Patent

active

042390842

ABSTRACT:
A well liner for a subterranean well is provided comprising an elongated tubular member which may be a wire wrapped screen having a plurality of slots or passages which are disposed longitudinally and circumferentially of and extending from the outer surface to the inner surface of the tubular member, and an impermeable inorganic matrix substantially filling said slots or passages and coated upon said inner and outer surfaces, said matrix being the reaction product of a first reactant consisting essentially of magnesium oxide and a second reactant consisting essentially of magnesium chloride, in a solvent or solution therefor.

REFERENCES:
patent: 2335578 (1943-11-01), Carter
patent: 2401035 (1946-05-01), Akeyson et al.
patent: 3216497 (1965-11-01), Howard et al.
patent: 3273641 (1966-09-01), Bourne
patent: 3322199 (1967-05-01), Van Note, Jr.
patent: 3333635 (1967-08-01), Crawford
patent: 3880233 (1975-04-01), Muecke et al.
patent: 3905423 (1975-09-01), Sparlin et al.
patent: 4018282 (1977-04-01), Graham et al.
patent: 4018283 (1977-04-01), Watkins

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