Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Well logging
Patent
1988-09-30
1990-02-27
Buczinski, Stephen C.
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Well logging
367 90, 175 48, 73155, 7386125, G01V 140
Patent
active
049052039
ABSTRACT:
A well logging system which monitors the flow rate of a fluid flowing in a borehole traversing an earth formation includes a sonde. A transmitter located in the sonde transmits acoustical waves into the fluid at a predetermined frequency. A receiver also located in the sonde receives reflected acoustical waves. The receiver also provides a signal corresponding to the received reflected acoustical waves. The provided signal is processed for being sent uphole by way of a cable. Electronics at the surface include circuitry which derives the velocity of the fluid in accordance with the frequency of the processed signal and the predetermined frequency. The circuitry provides an output signal corresponding to the derived velocity of the fluid flowing the borehole.
REFERENCES:
patent: 3498290 (1970-03-01), Shaw et al.
patent: 4532812 (1985-08-01), Birchak
patent: 4545244 (1985-10-01), Yasuda et al.
patent: 4558219 (1985-12-01), LeBlanc et al.
patent: 4754641 (1988-07-01), Orbans et al.
Waller, J. M., "Guidelines for Applying Doppler Acoustic Flowmeters," InTech, Oct. 1980, pp. 55-57.
Sims Jackie C.
Supernaw Irwin R.
Buczinski Stephen C.
Gillespie Ronald G.
Kulason Robert A.
Lobo Ian J.
O'Loughlin James J.
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