Hydraulic cutting overshot
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United States of America Patent
Stats
-
Nov 25, 1997
Grant Date -
N/A
app pub date -
Feb 22, 1996
filing date -
Feb 22, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An overshot cutter for suspension from coiled tubing that includes an elongate housing which includes a drive piston at the upper end with adjustable axial passage, an inner barrel there-below, and a cutter piston extending a collet cutter next below and finally a restrictor block; whereby the housing lower end is positioned down over a fish for hydraulic release of the drive piston to drive the inner barrel and cutter piston downward thereby to close the collet cutter within the restrictor block to cut the tubing below the fish.
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