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Estimating The Elastic Moduli Of Transversely Isotropic Formations
(Massachusetts Institute of Technology. Earth Resources Laboratory, 1989)
Using acoustic logging data, we develop a method of estimating the horizontal shear
modulus C[subscript 66]) of a transversely isotropic formation with its axis of symmetry parallel to that of the borehole. The data for ...
Applications Of Perturbation Theory To Acoustic Logging
(Massachusetts Institute of Technology. Earth Resources Laboratory, 1989)
For guided wave propagation in boreholes, perturbation theory is used to calculate
(1) the partial derivative of the wavenumber or frequency with respect to an elastic
modulus or density, (2) group velocity, and (3) the ...
Guided Waves In Slight, Azimuthally Anisotropic Formations
(Massachusetts Institute of Technology. Earth Resources Laboratory, 1989)
A method of calculating dispersion curves for guided waves in slight, azimuthally
anisotropic formations is developed with perturbation theory. The fluid is assumed
to be inviscid, the formation perfectly elastic and ...