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Experimental Studies of Multipole Acoustic Logging with Scaled Borehole Models
(Massachusetts Institute of Technology. Earth Resources Laboratory, 2004)
A scaled multipole acoustic tool is built for laboratory measurements at ultrasonic frequencies in borehole models. The source with four separate transducers generate monopole, dipole, and quadrupole waves by different ...
Spatial Orientation And Distribution Of Reservoir Fractures From Scattered Seismic Energy
(Massachusetts Institute of Technology. Earth Resources Laboratory, 2004)
Expanded details and additional results are presented using a new method (Willis et al, 2003) for determining the reflection and scattering characteristics of seismic energy from subsurface fractured formations. The method ...
A comparison of LWD and wireline dipole sonic data
(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 ...