Boring or penetrating the earth – With below-ground tool drive prime mover – With means to anchor prime movers support to bore wall
Reexamination Certificate
2005-08-09
2005-08-09
Tsay, Frank (Department: 3672)
Boring or penetrating the earth
With below-ground tool drive prime mover
With means to anchor prime movers support to bore wall
C175S099000, C175S321000
Reexamination Certificate
active
06926102
ABSTRACT:
Subsea controlled milling apparatus and methods. In a described embodiment, a method of controlling displacement of a cutting device conveyed on a tubular string in a subterranean well includes the steps of: interconnecting an apparatus in the tubular string, the apparatus including an axial advancement device and an anchoring device; actuating the anchoring device to anchor the apparatus in the well; applying a pressure differential to the advancement device, thereby displacing the cutting device relative to the apparatus; and operating the cutting device to cut a structure in the well.
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Guerrero John J.
Hepburn Neil
Hess Joseph E.
Smith Benji
Thackwray Ian W.
Halliburton Energy Service,s Inc.
Smith Marlin R.
Tsay Frank
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