Apparatus to allow a coiled tubing tractor to traverse a...

Details Apparatus to allow a coiled tubing tractor to traverse a... Apparatus to allow a coiled tubing tractor to traverse a...

2007-09-25

2007-09-25

Bates, Zakiya W. (Department: 3676)

Wells

Processes

Placing or shifting well part

C166S077200

Reexamination Certificate

active

11000233

ABSTRACT:
Apparatus and methods are provided 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 of the present invention 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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patent: 6003606 (1999-12-01), Moore et al.
patent: 6230813 (2001-05-01), Moore et al.
patent: 6241031 (2001-06-01), Beaufort et al.
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patent: 6347674 (2002-02-01), Bloom et al.
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patent: 6601652 (2003-08-01), Moore et al.
patent: 6607607 (2003-08-01), Walker et al.
patent: 6679341 (2004-01-01), Bloom et al.
patent: 6745839 (2004-06-01), Simpson
patent: WO 03/067016 (2003-08-01), None
Welltec brochure “The Well Tractor® Company”.
BJ Service Company Product Sales Bulletin entitled “Tornado™ Nozzle” (Apr. 27, 2001).
BJ Services Company Product Sales Bulletin entitled “Roto-Jet® Rotary Jetting Tool” (Apr. 11, 2002).
Western Well Tool brochure for “All-Hydraulic Intervention Tractor™” (2003).
Jun. 22, 2006 British Search Report under Section 18(3) concerning GB Patent App. GB0506422.5.

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