Acoustic formation logging system with improved acoustic receive

Details Acoustic formation logging system with improved acoustic receive Acoustic formation logging system with improved acoustic receive

1997-07-24

1999-08-10

Lobo, Ian J.

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Well logging

367911, 181102, 181104, 3408561, G01V 140

Patent

active

059369132

ABSTRACT:
A receiver section for an acoustic oil well logging tool comprised of a plurality of receiver sub-units connected longitudinally within a rigid tubular member. Each receiver sub-unit has a series of acoustic wave sensors located for receiving and detecting monopole, dipole, quadrupole and unipole waveforms. Separate channels are provided for conveying waveforms data from each receiver sub-unit to an above ground data processing unit. Each receiver sub-unit also includes a compensating sensor for detecting tool vibrations and for producing signals which are combined with waveform data in the processing unit to eliminate the effects of tool vibration.

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patent: 4446539 (1984-05-01), Von Bose
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patent: 5043952 (1991-08-01), Hoyle et al.
patent: 5343001 (1994-08-01), Cowles et al.
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