Downhole drilling tool system

Details Downhole drilling tool system Downhole drilling tool system

1990-04-02

1993-04-13

Neuder, William P.

Boring or penetrating the earth

With signaling, indicating, testing or measuring

Tool position direction or inclination measuring or...

175 48, 175 61, 175 73, E21B 706

Patent

active

052013758

ABSTRACT:
In one broad aspect, the invention provides a method of receiving instructions for an implement, for example, a drill string stabilizer, mounted on a drill string, which instructions are transmitted by varying the rate of flow of, or pressure exerted by, the fluid in the bore of the drill string in accordance with one of a plurality of predetermined sequences; the method comprising the steps of:

REFERENCES:
patent: 3370657 (1968-02-01), Antle
patent: 3974886 (1976-08-01), Blake, Jr.
patent: 4270619 (1981-06-01), Base
patent: 4324297 (1982-04-01), Denison
patent: 4416339 (1983-11-01), Baker et al.
patent: 4471843 (1984-09-01), Jones, Jr. et al.
patent: 4592432 (1986-06-01), Williams et al.

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