Shear wave vibrator vehicle isolation system
AssigneeWestern Atlas International, Inc.
InventorKent J. Goodloe
Life of this patent
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Abstract
Two tracks are mounted between a vibratory source of shear, or horizontally travelling, wave siesmic energy and its transport vehicle. The tracks are parallel to each other in the direction of horizontal movement of the source when vibrating. One track is attached to the source, and the other to the vehicle. Pressurized rounded resilient members, which may be either spherical bags or wide tires, are mounted between the tracks to isolate the vehicle from vibrations, insuring that the seismic energy enters the earth.
Claims18
An apparatus for transferring vertical compressive forces from a transport vehicle to a shear vibratory seismic source base plate while isolating horizontal vibrations emitted by the seismic source base plate from the vehicle comprising:
- (a) an upper mounting means;
- (b) a lower mounting means;
- (c) a resilient means interposed between said upper mounting means and said lower mounting means;
- and
- wherein said upper mounting means is coupled to said transport vehicle to transfer said vertical compressive forces from said transport vehicle to said resilient means and said lower mounting means is coupled to said base plate to transfer said vertical compressive forces to said base plate from said resilient means, and said resilient means is substantially circular in cross-section in a vertical plane in the direction of horizontal vibration of the seismic source base plate, said upper mounting means having a lower surface in rolling engagement with said resilient means and said lower mounting means having an upper surface in rolling engagement with said resilient means to thereby transfer vertical compressive forces from the vehicle to the seismic source base plate while isolating horizontal movement of the source from the vehicle.
An apparatus for transferring vertical compressive forces from a transport vehicle to a shear wave vibratory seismic source base plate while isolating horizontal vibrations emitted by the seismic source base plate from the vehicle, comprising:
- (a) a resilient pressurized means;
- (b) upper mounting means for mounting said resilient pressurized means at an upper portion thereof with the vehicle;
- (c) lower mounting means for mounting said resilient pressurized means at a lower portion thereof with the seismic source;
- and
- (d) said resilient pressurized means being substantially circular in cross-section in a vertical plane in the direction of horizontal vibration of the seismic source said upper mounting means having a lower surface in rolling engagement with said resilient means and said lower mounting means having an upper surface in rolling engagement with said resilient means to thereby transfer vertical compressive forces from the vehicle to the seismic source base plate while isolating horizontal movement of the source from the vehicle
Dependencies are inferred from the claim text.