High tensile loading top entry sub and method
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United States of America Patent
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Sep 5, 2006
Grant Date -
Sep 16, 2004
app pub date -
Feb 19, 2002
filing date -
Feb 16, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
This invention relates to an elongated wireline entry device (10) which allows a wireline tool or coiled tubing with a tool attached to be inserted in a well bore without disconnection form the drill string appended thereto without introducing bending moments into the threaded connections (101, 106, 202) attached to the drill string because the pin and box connections of the tool are in axial, longitudinal alignment, the absence of these bending moments is required to suspend long pendular, and therefore heavy, drill strings for this device without failure. The angle between the longitudinal ayes of the longitudinal passage and the wireline passage in the wireline entry device is at most 4.0.degree..
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