Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Well logging
Patent
1983-08-18
1989-05-09
Tarcza, Thomas H.
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Well logging
367 27, 367 28, 367 35, 367 86, 181105, G01V 140
Patent
active
048294861
ABSTRACT:
In an acoustic logging system for providing information regarding selected parameters of the wall of a borehole in the earth, and of the rock formation which is adjacent the borehole, in which a single transmit/receive transducer system (T/RTS) mounted on a rotating assembly probes the wall of the borehole in a circular scanning pattern as a function of depth, the improvement which includes at least a second T/RTS mounted on the rotating assembly in known geometrical relation to the first T/RTS, and means to process two or more analog electrical scan signals for transmission over one or more electrical transmission channels in a logging cable. In particular, methods and means are described for the transmission of multiple scan signals, whereby more bottom hole parameters are transmitted, including composite electrical scan signals, in which the early part provides a gated high frequency scan signal and the latter part, the gated flow frequency scan signal, for greater penetration into the rock. Also the simultaneous transmission of multiple pairs of digital measurements of amplitude and caliper, are multiplexed over a single analog transmission system.
REFERENCES:
patent: 2595241 (1952-05-01), Goble
patent: 2648056 (1953-08-01), Jakosky
patent: 3175639 (1965-03-01), Liben
patent: 3237153 (1966-02-01), Blizard
patent: 3378097 (1968-04-01), Straus et al.
patent: 3406780 (1968-10-01), Zemanek, Jr.
patent: 3426865 (1969-02-01), Henry
patent: 3454922 (1969-07-01), Dory
patent: 3728672 (1973-04-01), Dennis et al.
patent: 3732947 (1973-05-01), Moran et al.
patent: 3959767 (1976-05-01), Smither et al.
patent: 4223398 (1980-09-01), Blalock
patent: 4283953 (1981-08-01), Plona
patent: 4303994 (1981-12-01), Tanguy
patent: 4414651 (1983-11-01), Buckner
patent: 4524433 (1985-06-01), Broding
Pihulic Daniel T.
Standard Oil Company (Indiana)
Tarcza Thomas H.
LandOfFree
Transmitting multiple borehole parameters in sonic logging does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Transmitting multiple borehole parameters in sonic logging, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transmitting multiple borehole parameters in sonic logging will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-94793