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. 12, 2016
Filed:
Jul. 10, 2014
Mark A. Meier, Houston, TX (US);
Steven E. Heiney, Houston, TX (US);
Jelena Tomic, Houston, TX (US);
Paul Ibanez, Boulder, CO (US);
Conor N. Byrne, Boulder, CO (US);
Mark A. Meier, Houston, TX (US);
Steven E. Heiney, Houston, TX (US);
Jelena Tomic, Houston, TX (US);
Paul Ibanez, Boulder, CO (US);
Conor N. Byrne, Boulder, CO (US);
ExxonMobil Upstream Research Company, Houston, TX (US);
Abstract
Method for seismic prospecting using counter-rotating (-) eccentric-mass () vibrator (CREMV) technology adapted as vibrator sources for seismic prospecting to produce controlled sweeps, as in the manner used in modern seismic prospecting, but with large forces at low frequencies, e.g. forces >275 kN at frequencies between 1 and 5 Hz. This is achieved by adapting the CREMV to enable rotational frequency and the eccentricity () of the masses relative to their rotation axes (-) to be varied independently and simultaneously, and by designing the CREMV such that the radius of rotation of the center of mass of each rotating mass is on the order of 50 cm or more. The low frequency data obtained from such a seismic source enables improved detection and resolution of subsurface structures and better determination of subsurface properties.