Wells – Processes – Repairing object in well
Patent
1995-05-23
1997-03-25
Neuder, William P.
Wells
Processes
Repairing object in well
166286, 166299, 166373, 166 63, E21B 2910
Patent
active
056135572
ABSTRACT:
Perforations and other openings in well casings, liners and other conduits may be substantially blocked or sealed to prevent fluid flow between the casing or liner interior and an earth formation by placing a radially expansible sleeve adjacent the perforations or openings and urging the sleeve into forcible engagement with the casing or inner wall using an explosive charge. An apparatus including a radially contracted sleeve formed by a coiled plate member or a tubular member having flutes defined by external and internal folds, may be deployed into a well casing or liner through a production or injection tubing string and on the end of a flexible cable or coilable tubing. An explosive charge disposed on the apparatus and within the sleeve may be detonated to urge the sleeve into forcible engagement with the casing inner wall.
REFERENCES:
patent: 2214227 (1940-09-01), English
patent: 3167122 (1965-01-01), Lang
patent: 3191677 (1965-06-01), Kinley
patent: 4662450 (1987-05-01), Haugen
patent: 4972906 (1990-11-01), McDaniel
patent: 5456319 (1995-10-01), Schmidt et al.
Benham Robert A.
Blount Curtis G.
Brock Jerry L.
Emerson John A.
Ferguson Keith R.
Atlantic Richfield Company
Martin Michael E.
Neuder William P.
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