Downhole window milling apparatus and method for using the same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Aug 22, 2000
Grant Date -
N/A
app pub date -
Jan 5, 1999
filing date -
Jan 5, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A window milling device which parameters can be set, prior to running inside a casing, and once positioned at a proper location can assure accurate and constant milling parameters, independently from hole configuration and geometry. The assembly consists of an anchoring device, to which a whipstock is connected, and a milling bit attached to a motor, contained within a motor housing. The whipstock has a predetermined groove, and the motor housing is fitted with a mating key having a complimentary profile to the groove. Thus, when the mating key engages the groove, the motor housing travels down the whipstock to a predetermined location, where the milling of the wellbore casing commences.
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Cited Art Landscape
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