Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Well logging
Patent
1981-08-31
1983-08-30
Moskowitz, Nelson
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Well logging
367 29, 367 35, 375 34, 375104, G01V 140, G01V 124
Patent
active
044020686
ABSTRACT:
An improved well logging technique is provided for more accurately deriving acoustic measurements of sub-surface earth formations. Method and apparatus are described for converting an acoustic signature which can be generated on a depth dependent or time dependent basis, into digital format and subsequently employing special processing techniques to yield parameters such as velocity of the transmitted acoustic energy through earth formations and the amplitude of the received acoustic energy. Processing further allows for the generation of noise immunity signals functionally related to a measured signature parameter and for the generation of amplitude control signals. Additionally, a control signal is generated to optimize transmitter firing rate.
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Byron Richard M.
Dresser Industries Inc.
Moskowitz Nelson
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