Sensitive deep-well-drilling hook load measuring system

Details Sensitive deep-well-drilling hook load measuring system Sensitive deep-well-drilling hook load measuring system

1974-08-19

1976-02-17

Ruehl, Charles A.

Measuring and testing

Volumetric content measuring

177210, G01L 510

Patent

active

039383814

ABSTRACT:
A hook load measuring system for improving the sensitivity of such measurements in deep-well-drilling operations. It employs a transducer actuated by the hook load and an output signal from the transducer that covers the full range of hook-load variation. There is an arrangement for nulling the signal at any given setting, and then for measuring change in a predetermined direction with greatly increased sensitivity.

REFERENCES:
patent: 2803799 (1957-08-01), Siegel et al.
patent: 2851880 (1958-09-01), Fiedler
patent: 2940308 (1960-06-01), Calhoun
patent: 3469645 (1969-09-01), Provi et al.

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