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acoustic log

1. n. [Geophysics]

A display of traveltime of acoustic waves versus depth in a well. The term is commonly used as a synonym for a sonic log. Some acoustic logs display velocity.

Synonyms: acoustic velocity log

See: acoustic wavedepth conversioninterval transit timeinterval velocityvelocity survey

2. n. [Formation Evaluation]

A record of some acoustic property of the formation or borehole. The term is sometimes used to refer specifically to the sonic log, in the sense of the formation compressional slowness. However, it may also refer to any other sonic measurement, for example shear, flexural and Stoneley slownesses or amplitudes, or to ultrasonic measurements such as the borehole televiewer and other pulse-echo devices, and even to noise logs.

See: acoustic modeflexural modeinterval transit timenoise logStoneley wave

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