Boring or penetrating the earth – Automatic control – Of boring means including a below-ground drive prime mover
Patent
1992-10-23
1994-07-26
Bui, Thuy M.
Boring or penetrating the earth
Automatic control
Of boring means including a below-ground drive prime mover
175 61, 1753253, E21B 704
Patent
active
053320484
ABSTRACT:
An automatic closed loop drilling system is disclosed for providing automatic directional drilling capabilities in a bottomhole assembly. The drilling system includes at least one adjustable stabilizer that varies in response to formational and drilling conditions encountered downhole. A microcontroller is preprogrammed with a desired range of formation characteristics or with a desired inclination or target area. The microcontroller compares actual sensed data with the desired data and adjusts the position of the stabilizer blades to vary the direction of drilling.
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Dewey Charles H.
Johnson Harold D.
Underwood Lance D.
Bui Thuy M.
Halliburton Company
Heim Michael F.
Tsay Frank S.
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