Wells – Processes – Placing or shifting well part
Reexamination Certificate
2005-11-29
2005-11-29
Bagnell, David (Department: 3672)
Wells
Processes
Placing or shifting well part
C166S066400, C166S104000, C166S117700, C166S212000, C175S099000, C175S325300
Reexamination Certificate
active
06968904
ABSTRACT:
A method and apparatus for advancing a rotating motorized downhole tool for operations in oil/gas wells. The apparatus is adapted for drilling and milling away of casing sections in the wells, as preparation for plugging the same. The apparatus includes a rotating tool and a driving motor indirectly suspended on coiled tubing. The apparatus also includes a carriage connected to the motor adapted to absorb torques that occur during use. The carriage is connected to the coiled tubing via a swivel coupling such that a tensile force on the coiled tubing provides an advancing force for the tool and motor.
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PCT Search Report for PCT/NO 00/00352, dated Sep. 2, 2001.
Bakke Technology AS
Moser, Patterson & Sheridan L.L.P.
Smith Matthew J.
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