Apparatus for positioning a working implement in a borehole

Details Apparatus for positioning a working implement in a borehole Apparatus for positioning a working implement in a borehole

1974-08-08

1976-11-23

Myracle, Jerry W.

Wells

With electrical means

Valve

73151, 175 61, 340 18R, E21B 47024

Patent

active

039931277

ABSTRACT:
An apparatus is intended for drilling inclined boreholes with high degree of accuracy.
The apparatus comprises a working implement having an electric drill and a deep compass with selsyn type sensors whose output signals carry the information on the position of the electric drill in the borehole.
Means for controlling the position of the working implement is connected to said sensors and generates a signal in accordance with deviation of the output signals of said sensors from preset values.

REFERENCES:
patent: 2658284 (1953-11-01), Arps
patent: 3224513 (1965-12-01), Weeden, Jr.
patent: 3589454 (1971-06-01), Coyne

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