PUNCHING TOOL
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United States of America Patent
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Issued Date -
Dec 25, 2014
app pub date -
Sep 27, 2012
filing date -
Sep 30, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention relates to a punching tool for providing a hole or a dimple in a metal casing in a borehole. The punching tool comprises a tool body having an axial extension, and a punching unit connected with the tool body comprising: a fluid inlet, a punch movable between a retracted and a projected position and extending substantially radially in relation to the axial extension, and at least one hydraulic punch cylinder moving the punch between the retracted and the projected position. The present invention further relates to a method for providing a hole or a dimple in a metal casing downhole and to a method for installing a plug in an existing hole in the casing downhole.
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