P-wave anisotropy determination using borehole measurements

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

Reexamination Certificate

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C367S025000, C181S104000

Reexamination Certificate

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07626886

ABSTRACT:
A phased array of transducers is used to generate elastic waves into the earth formation in a selected direction. The impedance measured at the input to the transducer array is indicative of the elastic impedance of the earth formation in the selected direction.

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