Boring or penetrating the earth – With above-ground means to advance or retract boring means
Reexamination Certificate
2005-12-13
2005-12-13
Tsay, Frank S. (Department: 3672)
Boring or penetrating the earth
With above-ground means to advance or retract boring means
C166S077200, C166S077100
Reexamination Certificate
active
06973979
ABSTRACT:
A drilling rig is provided which is adapted to selectively drill using coiled tubing and jointed-pipe. The rig includes a base, a mast, a top drive slidably mounted to said mast for performing jointed-pipe operations, and a tubing injector for performing coiled tubing operations, mounted on said mast for selective movement from a first position in which the injector is in line with the mast and a second position in which the injector is out of line with the mast to permit jointed-pipe operations by the top drive. The rig is uniquely suited to easily and quickly assemble bottom hole assemblies (BHA's), and to connect such BHA's to coiled tubing.
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Carriere Gene
Goldade Don
Bracewell & Giuliani LLP
Savanna Energy Services Corp.
Thompson K.
Tsay Frank S.
LandOfFree
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