Method of downhole drilling and apparatus therefor

Details Method of downhole drilling and apparatus therefor Method of downhole drilling and apparatus therefor

Filed on

2006-11-14

Date issued

2006-11-14

Examiner

Gay, Jennifer H. (Department: 3672)

Patent Class

Boring or penetrating the earth

SubClass

Processes

SubSubClass

Boring curved or redirected bores

Other Related Categories

C175S026000, C175S045000, C175S105000

Type

Reexamination Certificate

Status

active

Patent number

07134512

Description

ABSTRACT:
A downhole drilling apparatus suspended by tubing includes a drill bit driven by an electric motor powered by a cable means. The motor is mounted upon a hollow shaft which allows fluid to pass through, so that a fluid circuit along the tube and back along the annulus between the borehole and the tubing via the drill bit is established. The state of the motor, particularly its speed and torque, can be monitored, and the motor may then be regulated as a result of the this data. Various sensors may be included in the drilling apparatus, and the data gathered similarly used to regulate the motor. Thrust means are included to urge the drill along the borehole. Supplementary pumps may be provided to assist the fluid flow. Both the thrust means and the pumps may be controlled by the control means.

REFERENCES:
patent: 3095052 (1963-06-01), Jackson
patent: 3503461 (1970-03-01), Shirley
patent: 3638742 (1972-02-01), Wallace
patent: 3795283 (1974-03-01), Oughton
patent: 3797589 (1974-03-01), Kellner et al.
patent: 3799277 (1974-03-01), Kellner
patent: 3804182 (1974-04-01), Adair et al.
patent: 3881775 (1975-05-01), McPherson et al.
patent: 3948330 (1976-04-01), Langford, Jr.
patent: 3958651 (1976-05-01), Young
patent: 4102418 (1978-07-01), Kammerer, Jr.
patent: 4137975 (1979-02-01), Pennock
patent: 4223747 (1980-09-01), Marais
patent: 4258802 (1981-03-01), Tullos et al.
patent: 4321974 (1982-03-01), Klemm
patent: 4368787 (1983-01-01), Messenger
patent: 4436168 (1984-03-01), Dismukes
patent: 4463814 (1984-08-01), Horstmeyer et al.
patent: 4492276 (1985-01-01), Kamp
patent: 4596293 (1986-06-01), Wallussek et al.
patent: 4669555 (1987-06-01), Petree
patent: 5394951 (1995-03-01), Pringle et al.
patent: 5419405 (1995-05-01), Patton
patent: 5613568 (1997-03-01), Sterner et al.
patent: 5679894 (1997-10-01), Kruger et al.
patent: 5725061 (1998-03-01), Van Steenwyk et al.
patent: 5738178 (1998-04-01), Williams et al.
patent: 5934383 (1999-08-01), Jurgens et al.
patent: 6003606 (1999-12-01), Moore et al.
patent: 6047784 (2000-04-01), Dorel
patent: 6092610 (2000-07-01), Kosmala et al.
patent: 6234256 (2001-05-01), Kettner
patent: 6427530 (2002-08-01), Krueger et al.
patent: 6540032 (2003-04-01), Krueger
patent: 6561289 (2003-05-01), Portman et al.
patent: 6659200 (2003-12-01), Eppink
patent: 6854534 (2005-02-01), Livingstone
patent: 6857486 (2005-02-01), Chitwood et al.
patent: 2001/0052427 (2001-12-01), Eppink et al.
patent: 2002/0007971 (2002-01-01), Beaufort et al.
patent: 2002/0029908 (2002-03-01), Bloom et al.
patent: 2002/0179336 (2002-12-01), Schaaf et al.
patent: 2003/0213620 (2003-11-01), Krueger
patent: 2004/0079553 (2004-04-01), Livingstone
patent: 2004/0104052 (2004-06-01), Livingstone
patent: 2004/0112642 (2004-06-01), Krueger et al.
patent: 2004/0129456 (2004-07-01), Vail, III
patent: 2004/0195007 (2004-10-01), Eppink
patent: 2004/0206548 (2004-10-01), Aronstam et al.

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