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:
Feb. 16, 2016
Filed:
May. 11, 2012
Warren S. Ross, Houston, TX (US);
Sunwoong Lee, Houston, TX (US);
Warren S. Ross, Houston, TX (US);
Sunwoong Lee, Houston, TX (US);
ExxonMobil Upstream Research Company, Houston, TX (US);
Abstract
A method for estimating velocity dispersion in seismic surface waves in massive 3-D data sets () that improves upon auto-picking of a curve along the peak or ridge of the magnitude of the beam-formed field (). The seismic data are transformed to the frequency-slowness domain, where nonlinear constrained optimization is performed on the transformed data. The optimization matches a nonlinear mathematical parametric model () of a beam-formed field to that in the transformed data, adjusting the parameters each iteration to reduce mismatch (). Dispersion curves are determined by the center of the beam in the optimized models (). A preferred nonlinear parametric mathematical model is a Gaussian-shaped beam or a cosine-tapered boxcar beam.