Wells – Processes – Cementing – plugging or consolidating
Patent
1983-05-11
1985-01-15
Novosad, Stephen J.
Wells
Processes
Cementing, plugging or consolidating
166242, E21B 3314
Patent
active
044933720
ABSTRACT:
Well completion system providing for an enhanced bond between a well casing and the surrounding cement sheath. The system comprises a string of casing disposed within a well extending to a subterranean location in the earth. A wrapping of a metal wire is disposed about the outer surface of the casing in a conformation providing a plurality of helical turns which crisscross on another. A cement sheath in the annulus about the casing encompasses the metal wire to provide an enhanced bond between the cement and the outer surface of the casing. The wire may be provided with a plurality of protrusion elements which extend into the cement sheath to further increase the casing cement bond.
REFERENCES:
patent: 3205945 (1965-09-01), Holt et al.
patent: 3255819 (1966-06-01), Scott et al.
patent: 3467193 (1969-09-01), Messenger
patent: 3982590 (1976-09-01), Harriman
"Sand-Coated Casing Aids Cement Jobs", The Oil and Gas Journal, Aug. 19, 1963.
"Rod Welded to Casing Helps Cementing" by Holt et al.; World Oil, Jul. 1964.
Pan Robert B.
Radd Fred J.
Scott James B.
Conoco Inc.
Neuder William P.
Novosad Stephen J.
Reinert A. Joe
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