Wells – Processes – Freeing stuck object – grappling or fishing in well
Reexamination Certificate
2007-03-27
2007-03-27
Bagnell, David (Department: 3672)
Wells
Processes
Freeing stuck object, grappling or fishing in well
C166S177100, C166S297000, C166S055000, C175S056000
Reexamination Certificate
active
10607510
ABSTRACT:
A back-off tool for use in a tubular member disposed inside a wellbore. The back-off tool includes a housing and at least one sonic wave generator mounted within the housing. The sonic wave generator is configured to generate a plurality of sonic waves.
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Bagnell David
Bomar Shane
Patterson & Sheridan L.L.P.
Weatherford / Lamb, Inc.
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