Method of transmitting ultrasonic amplitude & time travel inform

Details Method of transmitting ultrasonic amplitude & time travel inform Method of transmitting ultrasonic amplitude & time travel inform

1988-12-29

1990-02-06

Steinberger, Brian S.

Communications: electrical

Wellbore telemetering or control

In horizontal or inclined passage arrangement

340858, 367 27, 367 29, G01V 100

Patent

active

048991449

ABSTRACT:
A method for transmitting ultrasonic amplitude and time travel information obtained from borehole logging operations over a logging cable allows accurate measurement of the time travel by surface equipment. The time travel information is transmitted by a time travel pulse, which is produced at a time interval from a synchronization pulse corresponding to the time of travel of an acoustic return. The peak amplitude of the acoustic return is transmitted by a separate amplitude pulse.

REFERENCES:
patent: 4210965 (1980-07-01), Ingram
patent: 4594691 (1986-06-01), Kimball et al.
patent: 4777629 (1988-10-01), Morris et al.

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