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:
Jul. 17, 2012
Filed:
Feb. 03, 2011
Jerome R. Krebs, Houston, TX (US);
John E. Anderson, Houston, TX (US);
Jerome R. Krebs, Houston, TX (US);
John E. Anderson, Houston, TX (US);
ExxonMobil Upstream Research Company, Houston, TX (US);
Abstract
An improved method for reducing the accuracy requirements on the starting model when performing multi-scale inversion of seismic data () by local objective function optimization (). The different scales of inversion are brought about by incorporating a low-pass filter into the objective function (), and then decreasing the amount of high-frequency data that is filtered out from one scale to the next. Moreover, the filter is designed to be time varying, wherein the filter's low-pass cutoff frequency decreases with increasing traveltime of the seismic data being filtered (). The filter may be designed using Pratt's criterion for eliminating local minima, and performing averages (or other statistical measure) of the period and the traveltime error only with respect to source and receiver location but not traveltime ().