Boring or penetrating the earth – Means traveling with tool to constrain tool to bore along... – Axially spaced opposed bore wall engaging guides
Patent
1990-06-21
1991-12-24
Melius, Terry L.
Boring or penetrating the earth
Means traveling with tool to constrain tool to bore along...
Axially spaced opposed bore wall engaging guides
166381, 175259, 175267, E21B 1066
Patent
active
050743660
ABSTRACT:
The present invention comprises a method and apparatus for simultaneously drilling and casing a wellbore. More specifically, the apparatus comprises and outer conduit string containing an inner drill string carrying a bit capable of drilling a wellbore of greater diameter than the outer string. The drill string may be adapted to drill a nonlinear wellbore by offsetting the drill bit from the longitudinal axis of the outer string, and the drill bit is preferably retractable to permit withdrawal of the drill string after the wellbore is completed, leaving the outer string of casing or liner in place. The wellbore is drilled by rotating the drill bit and advancing the drill string by pushing from the surface, and the outer string is advanced by being pulled along by the drill string.
REFERENCES:
patent: 32267 (1886-10-01), Cherrington
patent: 3878903 (1975-04-01), Cherrington
patent: 3933209 (1976-01-01), Sweeney
patent: 3996758 (1976-12-01), Cherrington
patent: 4003440 (1977-01-01), Cherrington
patent: 4043136 (1977-08-01), Cherrington
patent: 4176985 (1979-12-01), Cherrington
patent: 4354559 (1982-10-01), Johnson
patent: 4453603 (1984-06-01), Voss et al.
patent: 4545443 (1985-10-01), Wiredal
patent: 4610307 (1986-09-01), Jurgens et al.
patent: 4651837 (1987-03-01), Mayfield
patent: 4679637 (1987-07-01), Cherrington et al.
patent: 4697651 (1987-10-01), Dellinger
patent: 4739842 (1988-04-01), Kruger et al.
patent: 4765416 (1988-08-01), Bjerking et al.
patent: 4807708 (1989-02-01), Forrest et al.
patent: 4828050 (1989-05-01), Hashimoto
patent: 4842081 (1989-06-01), Parant
"Tigre Tierra Casing Drivers" by Aardvark Corporation (1988).
"Operating Instructions and Spare Parts Lists for Controlled Deviation Drilling Equipment DEVIBOR" by Craelius AB (1987).
"The Steerable System-Job Performance Data-Casing Drill-Offshore Gulf of Mexico" by Smith International (1978).
Aslakson John K.
Hatten James L.
Jacques Gary E.
Karlsson Haraldur
Baker Hughes Incorporated
Melius Terry L.
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