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. 08, 2013
Filed:
Mar. 24, 2011
Applicant:
Wenyi HU, Katy, TX (US);
Inventor:
Wenyi Hu, Katy, TX (US);
Assignee:
ExxonMobil Upstream Research Company, Houston, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
G01V 1/28 (2006.01); G01V 1/30 (2006.01);
U.S. Cl.
CPC ...
G01V 1/282 (2013.01);
Abstract
Method for reconstructing subsurface Q models () from seismic data () by performing ray-based (), centroid frequency shift () Q tomography. The seismic source waveform's amplitude spectrum is approximated by a frequency-weighted exponential function of frequency (), having two parameters to adjust to fit the frequency shift data, thereby providing a better fit to various asymmetric source amplitude spectra. Box constraints may be used in the optimization routine, and a multi-index active-set method used in velocity tomography is a preferred technique for implementing the box constraints ().