Repairing leaks in casings
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United States of America Patent
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Jun 23, 1992
Grant Date -
N/A
app pub date -
Jan 8, 1991
filing date -
Jan 8, 1991
priority date (Note) -
Expired
status (Latency Note)
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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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