E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 23/00 (2006.01) E21B 4/00 (2006.01) E21B 4/18 (2006.01) E21B 19/22 (2006.01) E21B 23/04 (2006.01) E21B 23/08 (2006.01) E21B 23/10 (2006.01) E21B 41/00 (2006.01) E21B 43/26 (2006.01)
Patent
CA 2502496
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.
Bereskin & Parr Llp
Bj Services Company
Bj Services Company Canada
LandOfFree
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