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Effects of Casing on Full Waveform Acoustic Logs
(Massachusetts Institute of Technology. Earth Resources Laboratory, 1983)
A general expression is derived for the dispersion relations and the impulse response of a radially layered borehole. The. model geometry consists of a central fluid cylinder surrounded by an arbitrary number of solid ...
Determination of Shear Wave Velocities in "Slow" Formations
(Massachusetts Institute of Technology. Earth Resources Laboratory, 1983)
Direct determination of formation shear wave travel time is impossible in "slow" formations where the shear wave velocity is lower than the borehole fluid (mud) velocity. However, the Stoneley waves in these formations are ...