Centralizer control

Details Centralizer control Centralizer control

1974-05-16

1976-01-20

Abbott, Frank L.

Tool driving or impacting

Processes

173141, 308 39, B23Q 500, E21C 900

Patent

active

039332080

ABSTRACT:
An automatic control system for an adjustable, power operated drill string centralizer.

REFERENCES:
patent: 3158213 (1964-11-01), O'Neill et al.
patent: 3181630 (1965-05-01), Coburn
patent: 3734209 (1973-05-01), Haisch et al.
patent: 3768663 (1973-10-01), Turner et al.

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