Repairing leaks in casings

Details Repairing leaks in casings Repairing leaks in casings

1991-01-08

1992-06-23

Suchfield, George A.

Wells

Processes

Repairing object in well

166291, 166292, E21B 2900, E21B 3313

Patent

active

051234874

ABSTRACT:
This invention relates to a method of repairing a hole in and thereby terminating the undesirable flow of fluid through a hole in a casing disposed in a wellbore penetrating a subterranean earth formation which method involves the same use of a hydraulic cement consisting of discrete particles having a particle size not greater than about 30 microns. The cement, which is utilized in a water slurry, has a low density, good thixotropic properties and, in one embodiment, expansive characteristics.

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