The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 08, 2014
Filed:
Mar. 29, 2012
Colin George Anderson, Vossem, BE;
Claudio Bagaini, Asker, NO;
Emmanuel Coste, Oslo, NO;
Martin Laycock, Asker, NO;
Colin Readman, Dubai, AE;
Colin George Anderson, Vossem, BE;
Claudio Bagaini, Asker, NO;
Emmanuel Coste, Oslo, NO;
Martin Laycock, Asker, NO;
Colin Readman, Dubai, AE;
WesternGeco L.L.C., Houston, TX (US);
Abstract
A seismic vibrator includes a baseplate having a surface configured to couple to a ground surface. A driver is coupled to the baseplate and is configured to move the baseplate in a vibratory manner. A decoupling system is coupled to a part of the baseplate other than the ground-contacting surface. The decoupling system includes a first layer having a Young's modulus greater than that of a second layer coupled to the first layer. The second layer is coupled to the baseplate. The Young's moduli, thicknesses and masses of the first and second layer are selected to provide the decoupling system with a resonant frequency of at most, a spatial aliasing frequency of seismic sensors deployed on the ground surface or a lowest seismic frequency of interest.