Downhole seismic source

Details Downhole seismic source Downhole seismic source

2006-11-13

2009-11-17

Donels, Jeffrey (Department: 2832)

Acoustics

Geophysical or subsurface exploration

Seismic wave generation

C181S106000, C181S108000, C181S113000, C367S025000, C166S249000, C166S254200, C166S209000, C166S210000, C166S211000

Reexamination Certificate

active

07617908

ABSTRACT:
Elastodynamic waves are generated by a tool having a hammer rotatably connected with a housing by a first hinge and an actuator arm rotatably connected with the hammer by a second hinge. An axial force applied to the actuator arm by a drive shaft and spring is translated and amplified to a radial impact force by rotation of the hammer around the first hinge. The tool may also include a stabilizer arm connected to the actuator arm by a third hinge, and connected to the housing by a fourth hinge. The housing may be an acoustic wireline tool cylinder having an opening that permits the hammer mass to extend outside the housing when rotated in a first direction. The housing may also include a second opening that permits the hammer mass to extend outside the housing when rotated in a second direction, and a third opening that permits the hammer mass to extend outside the housing when rotated between the first and second openings.

REFERENCES:
patent: 3716111 (1973-02-01), Lavergne
patent: 4118994 (1978-10-01), Layotte et al.
patent: 4205731 (1980-06-01), Cholet et al.
patent: 4402381 (1983-09-01), Airhart
patent: 4505363 (1985-03-01), Herbulot et al.
patent: 4564083 (1986-01-01), Layotte et al.
patent: 4609066 (1986-09-01), Layotte et al.
patent: 4651044 (1987-03-01), Kompanek
patent: 4850451 (1989-07-01), Cholet et al.
patent: 5080189 (1992-01-01), Cole
patent: 5228011 (1993-07-01), Owen
patent: 5400640 (1995-03-01), Stuckey
patent: 5515918 (1996-05-01), Brett et al.
patent: 6550534 (2003-04-01), Brett
patent: 6619423 (2003-09-01), Courage
patent: 2003/0205428 (2003-11-01), Chang
patent: 2005/0087391 (2005-04-01), Ounadjela
patent: 2006/0118353 (2006-06-01), Quinn et al.
Kennedy et al., A Swept-Frequency Borehole Source for Inverse VSP and Cross-Borehole Surveying, 7th Geophysical conference of the Australian Society of Exploration Geophysics, 1989, vol. 20, pp. 133-136.
Balogh et al., New Piezoelectric transducer for Hole-to-Hole Seismic Applications, 58th Annual International Meeting of the Society of Exploration Geophysics, 1988, Session DEV 2.5, pp. 155-157.
Owen et al., Arc Discharge Pulse Source for Borehole Seismic Applications, 58th Annual International Meeting of the Society of Exploration Geophysics, 1988, Session DEV 2.4, pp. 151-154.
Cutler, Development of a Hydraulic Borehole Seismic Source, Sandia report SAND98-0932, UC-902, Apr. 1998, pp. i-vi, 1-97.
Ziolkowski et al., Determination of tube-wave to body-wave ration for Conoco borehole orbital source, 69th Annual International Meeting of the Society of Exploration Geophysics, 1999, pp. 156-159.
Kennedy, et al., Swept-Frequency Borehole source for Inverse VSP and Cross-Borehole Surveying, 58th Annual International Meeting of the Society of Exploration Geophysics, Expanded Abstracts, 1988, DEV 2.6, pp. 158-160.

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