Wells – Processes – Placing or shifting well part
Reexamination Certificate
2007-02-06
2007-02-06
Bates, Zakiya W. (Department: 3676)
Wells
Processes
Placing or shifting well part
C166S173000, C166S222000, C166S373000
Reexamination Certificate
active
10816287
ABSTRACT:
Apparatus and methods for removing sand and/or other fill material located in a wellbore ahead of a coiled tubing tractor and displacing the material behind the tractor. More particularly, the apparatus and methods allow a coiled tubing tractor to drive forward in a wellbore by removing fill material in front of the tractor thereby allowing the wheels or traction pads of the tractor to remain in contact with the wellbore.
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BJ Service Company Product Sales Bulletin entitled “Tornado ™ Nozzle” (Apr. 27, 2001).
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Bates Zakiya W.
BJ Services Company
Howrey LLP
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