Implements or apparatus for applying pushing or pulling force – Apparatus for hauling or hoisting load – including driven... – Device includes rotatably driven – cable contacting drum
Patent
1983-11-09
1985-08-20
Levy, Stuart S.
Implements or apparatus for applying pushing or pulling force
Apparatus for hauling or hoisting load, including driven...
Device includes rotatably driven, cable contacting drum
254392, 173 4, B66C 100
Patent
active
045359725
ABSTRACT:
A system for controlling the vertical movement of a drillstring and which is removably interconnected with a conventional drill rig. The system includes at least one fluidic cylinder and piston assembly removably connected at an upper end to a support, such as the rig's traveling block assembly, and at a lower end to the drillstring. A pump is operatively connected to the cylinder and piston assembly and a control valve device is provided to control the flow of the fluid to and from the cylinder and piston assembly. A computing device is in operative communication with a data measurement system and the control valve device and is used to automatically control the movement of the drillstring in response to data, such as WOB, received from the data measurement system.
REFERENCES:
patent: Re28218 (1974-10-01), Hanes et al.
patent: Re29564 (1978-03-01), Larralde et al.
patent: 3653635 (1972-04-01), Bates et al.
patent: 3718316 (1973-02-01), Larralde et al.
patent: 3793835 (1974-02-01), Larralde
patent: 3871622 (1975-03-01), Larralde et al.
patent: 3905580 (1975-09-01), Hooper
patent: 3912227 (1975-10-01), Meeker
F. S. Young, Computerized Drilling Control, Sep. 29, 1968.
Millheim Keith K.
Warren Tom M.
Brown Scott H.
Hook Fred E.
Jaekel Katherine
Levy Stuart S.
Standard Oil Co. (Indiana)
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