Stoneley radial profiling of formation shear slowness

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

Reexamination Certificate

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C367S031000, C367S032000

Reexamination Certificate

active

07463550

ABSTRACT:
Methods and apparatus facilitating radial profiling of shear slowness or shear modulus c66in the cross-sectional plane of a borehole in an anisotropic formation with the vertical X3-axis are disclosed. According to some aspects of the invention, sonic tool bias is accounted for and removed from radial profiles. According to some aspects, sonic tool bias is accounted for by modeling the sonic tool as a heavy-fluid.

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