G - Physics – 01 – V
Patent
G - Physics
01
V
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G01V 1/28 (2006.01) E21B 47/14 (2006.01) G01V 1/40 (2006.01) G01V 1/44 (2006.01) G01V 11/00 (2006.01)
Patent
CA 1231428
SIMULTANEOUS DIGITIZING APPARATUS FOR AN ACOUSTIC TOOL Abstract of the Disclosure For use in an acoustic logging tool, an apparatus which digitizes simultaneously obtained acoustic signals is set forth in the preferred and illustrated embodiment. The device cooperates with N acoustic receivers in a sonde. After an acoustic pulse is transmitted, data is observed at all N acoustic receivers. This apparatus comprises a multiplexer which is connected to the several receivers. The several input signals are multiplexed, thereafter input to a digital data converter forming a procession of output digital words,and the words are stored in a selected order in a digital data buffer. They are delivered to the surface through a telemetry transmitter at a slower rate than the rate at which the data is created. In addition, a transmitter monitor is included. This provides a signal alternately digitized for a specified interval to enable coordination of the data reduction from the acoustic receivers in contrast with the timing of the transmitted acoustic pulse.
462660
Company Halliburton
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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