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:
Oct. 25, 1988
Filed:
Mar. 09, 1987
Mohamed T Hadidi, Dallas, TX (US);
Andrejs Jurkevics, Arlington, VA (US);
Andrew F Linville, Jr, Dallas, TX (US);
Mobil Oil Corporation, New York, NY (US);
Abstract
Method to process seismic data to yield useful information regarding the subsurface area explored. Seismic data which is acquired from the seismic exploration is autocorrelated and the amplitude spectrums estimated, stacked and averaged to reduce the effects of nonwhite reflectivity upon the data. The amplitude spectrum is cepstral windowed a first time to reduce the effects of reflectivity leakage on the amplitude spectrum, amortized at both low and high frequencies so that the amplitude spectrum will approximate the analog wavelet and cepstral windowed a second time to eliminate any remaining rapidly varying components of the amplitude spectrum. The resultant amplitude spectrum is then used to estimate the phase spectrum for the wavelet and a two-sided least squares filter is then designed to shape the estimated seismic wavelet into a zero-phase, low sidelobe output wavelet.