Differential energy acoustic measurements of formation character

Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Well logging

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181102, 73151, G01S 130

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active

048887404

ABSTRACT:
A method for acoustically investigating characteristics of formations penetrated by a borehole such as fractures by taking differential Stoneley wave acoustic energy measurements between pairs of receivers of an array of receivers carried by a logging tool. The receivers of each pair all have the same spacing. The energy is that detected by the receivers in response to acoustic pulses generated by a transmitter spaced from the receivers on the tool. The differential energy measurements are stacked to obtain a stacked differential energy log.

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