Boring or penetrating the earth – Tool actuation by reaction of rotating eccentric mass
Patent
1999-03-19
2000-09-12
Tsay, Frank S.
Boring or penetrating the earth
Tool actuation by reaction of rotating eccentric mass
175 45, 175 73, E21B 704, E21B 708
Patent
active
061163546
ABSTRACT:
A rotary steerable system for use in a drill string for drilling a deviated well is disclosed. The system utilizes a mechanical gravity reference device comprising an unbalanced weight which may rotate independently of the rotation of the drill string so that its heavy portion is always oriented toward the low side of the wellbore and which has an attached magnet. A magnetic switch that rotates as the drill string rotates is activated when its axis coincides with the axis of the magnet, and this activation results in a thrust member or pad being actuated to "kick" the side of the wellbore.
REFERENCES:
patent: 3095924 (1963-07-01), Frisby
patent: 3280923 (1966-10-01), Muench
patent: 4241796 (1980-12-01), Green et al.
patent: 4319649 (1982-03-01), Jeter
patent: 4394881 (1983-07-01), Shirley
patent: 4416339 (1983-11-01), Baker et al.
patent: 4834193 (1989-05-01), Leitko, Jr. et al.
patent: 5307885 (1994-05-01), Kuwana et al.
patent: 5316090 (1994-05-01), Kuwana et al.
patent: 5318138 (1994-06-01), Dewey et al.
patent: 5394951 (1995-03-01), Pringle et al.
patent: 5553678 (1996-09-01), Barr et al.
patent: 5553679 (1996-09-01), Thorp
patent: 5582259 (1996-12-01), Barr
patent: 5582260 (1996-12-01), Murer et al.
patent: 5673763 (1997-10-01), Thorp
patent: 5685379 (1997-11-01), Barr et al.
patent: 5695015 (1997-12-01), Barr et al.
patent: 5706905 (1998-01-01), Barr
patent: 5803185 (1998-09-01), Barr et al.
Barr et al., Steerable Rotary Drilling With an Experimental System, SPE/IADC Drilling Conference, 1995, p. 435-450.
Flatern, Steering clear of problem well paths, Offshore Eng., Oct. 1998, p. 37-39.
Internet Search; Steerable rotary drilling systems and method of operating such systems; Barr.
Eriksen Clarence E.
Tsay Frank S.
Weatherford / Lamb, Inc.
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