发明名称 IMPROVED DISPERSION ESTIMATION BY NONLINEAR OPTIMIZATION OF BEAM-FORMED FIELDS
摘要 <p>A method for estimating velocity dispersion in seismic surface waves in massive 3-D data sets (401) that improves upon auto-picking of a curve along the peak or ridge of the magnitude of the beam-formed field (402). 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 (403) of a beam-formed field to that in the transformed data, adjusting the parameters each iteration to reduce mismatch (404). Dispersion curves are determined by the center of the beam in the optimized models (405). A preferred nonlinear parametric mathematical model is a Gaussian-shaped beam or a cosine-tapered boxcar beam.</p>
申请公布号 WO2012177335(A1) 申请公布日期 2012.12.27
申请号 WO2012US37576 申请日期 2012.05.11
申请人 EXXONMOBIL UPSTREAM RESEARCH COMPANY;ROSS, WARREN, S.;LEE, SUNWOONG 发明人 ROSS, WARREN, S.;LEE, SUNWOONG
分类号 G01V1/00 主分类号 G01V1/00
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