Apparatus and methods of setting and retrieving casing with drilling latch and bottom hole assembly
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United States of America Patent
Stats
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Mar 17, 2009
Grant Date -
Feb 16, 2006
app pub date -
Jul 29, 2005
filing date -
Jul 30, 2004
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In one embodiment, a top drive system for drilling with casing is provided with an access tool to retrieve a downhole tool. The top drive system for drilling with casing comprises a top drive; a top drive adapter for gripping the casing, the top drive adapter operatively coupled to the top drive; and an access tool coupled to the top drive and adapted for accessing a fluid passage of the top drive system. In another embodiment, a method for retrieving a downhole tool through a tubular coupled to a top drive adapter of a top drive system is provided. The method comprises coupling an access tool to the top drive system, the access tool adapted to provide access to a fluid path in the top drive system and inserting a conveying member into the fluid path through the access tool.
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