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Simultaneous Inversion of cross-dipole acoustic waveforms in anisotropic media for azimuthal angle and dispersion of fast and slow shear waves 

Briggs, Victoria; Rao, Rama V. N.; Burns, Daniel R. (Massachusetts Institute of Technology. Earth Resources Laboratory, 2003)
A method to jointly invert for azimuthal angle and dispersion relations from cross-dipole data is presented. Dispersion curves from the joint inversion are compared to both Prony’s method and a simple back propagation ...
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A comparison of LWD and wireline dipole sonic data 

Briggs, Victoria; Rao, Rama V. N.; Grandi, Samantha K.; Burns, Daniel R.; Chi, Shihong (Massachusetts Institute of Technology. Earth Resources Laboratory, 2004)
Data measured by both wireline and LWD tools in the same borehole are compared. Discrepancies in shear velocities as calculated from the data are on average around 5% and discrepancies between compressional velocities are ...
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Simultaneous inversion for fast azimuth and dispersion of borehole flexural waves using cross-dipole data 

Briggs, Victoria; Huang, Xiaojun; Rao, Rama V. N.; Burns, Daniel R. (Massachusetts Institute of Technology. Earth Resources Laboratory, 2002)
This paper presents an inversion algorithm for obtaining azimuthal angle and borehole flexural wave dispersion in an anisotropic formation. The technique constructs an objective function that can be minimized using standard ...

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Author
Briggs, Victoria (3)
Burns, Daniel R. (3)
Rao, Rama V. N. (3)
Chi, Shihong (1)Grandi, Samantha K. (1)Huang, Xiaojun (1)Date Issued2002 (1)2003 (1)2004 (1)Has File(s)Yes (3)

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