Weight-on-drill-bit and torque-measuring apparatus

Details Weight-on-drill-bit and torque-measuring apparatus Weight-on-drill-bit and torque-measuring apparatus

1975-07-07

1976-07-06

Moskowitz, Nelson

Communications: electrical

Selective

Interrogation response

340 18NC, 175 40, 175 50, G01V 140

Patent

active

039684733

ABSTRACT:
Apparatus is provided for measuring weight and torque on the drill bit in a logging-while-drilling system. The upper end of the drill bit is adapted for slidable engagement with the lower end of the drill collar. Transducers are mounted with a cavity formed between the drill collar and drill bit when they are in slidable engagement. The transducers measure axial and rotational motions of the drill bit which represent weight and torque on the drill bit, respectively.

REFERENCES:
patent: 3813656 (1974-05-01), Fowler
patent: 3820063 (1974-06-01), Sexton
patent: 3906435 (1975-09-01), Lamel et al.

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