Fluid driven torsional dipole seismic source

Details Fluid driven torsional dipole seismic source Fluid driven torsional dipole seismic source

1989-08-08

1991-01-08

Jordan, Charles T.

Acoustics

Geophysical or subsurface exploration

Well logging

181119, 181121, 367 75, G01V 140

Patent

active

049828118

ABSTRACT:
A compressible fluid powered oscillating downhole seismic source device capable of periodically generating uncontaminated horizontally-propagated, shear waves is provided. A compressible fluid generated oscillation is created within the device which imparts an oscillation to a housing when the device is installed in a housing such as the cylinder off an existing downhole tool, thereby a torsional seismic source is established. Horizontal waves are transferred to the surrounding bore hole medium through downhole clamping.

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