Wellbore percussion adapter and tubular connection
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United States of America Patent
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Jun 3, 2014
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N/A
app pub date -
Sep 9, 2010
filing date -
Mar 13, 2008
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Abstract
A percussion adapter that is driven to generate a percussive axial motion on a wellbore structure. One percussion adapter includes a drive connection to mechanically convert rotational drive to axially directed percussive motion. Another percussion adapter employs a valve that creates back pressure causing axially directed percussive motion. A wellbore tubular connection transitions torque to resist back off when left hand or right hand torque is applied.
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