Method and device for remote-controlling drill string equipment

Details Method and device for remote-controlling drill string equipment Method and device for remote-controlling drill string equipment

1989-12-29

1991-11-19

Melius, Terry L.

Boring or penetrating the earth

Automatic control

In response to drilling fluid circulation

175 40, 175 48, 367 83, E21B 4712

Patent

active

050658255

ABSTRACT:
A method of and a device for remotely-controlling at least one piece of drill string equipment from an instruction issued from the surface. The method includes issuing from the surface a first information sequence to cause a first predetermined action according to a predetermined sequence, detection of a condition indicative of a second sequence resulting from the first sequence, comparison of this second sequence with another predetermined sequence, and operating the equipment only if there is similarity between the latter two sequences. The method can be applied to actuation of a variable-angle bent element.

REFERENCES:
patent: 4100528 (1978-07-01), Bernard et al.
patent: 4354233 (1982-10-01), Zhukovsky et al.
patent: 4454598 (1984-06-01), Claycomb
patent: 4655299 (1987-04-01), Schoeffler
patent: 4698794 (1987-10-01), Kruger et al.
patent: 4734893 (1988-03-01), Claycomb
patent: 4854397 (1989-08-01), Warren et al.

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