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. 27, 2020
Filed:
Dec. 19, 2017
Ion Geophysical Corporation, Houston, TX (US);
Chao Wang, Houston, TX (US);
Howard David Yingst, Houston, TX (US);
Other;
Abstract
Computer systems and methods are provided for time domain reconstructed seismic wavefield imaging. The original source signal or extended source can be forward propagated based on a model of a subsurface region, in order to generate a residual by comparison to field data. The residual can be back-propagated to generate a reconstructed source signal, which can be forward propagated to generate a reconstructed source wavefield. Seismic images can be generated by cross correlating the forward-propagated reconstructed source wavefield and the back-propagated receiver wavefield. The model can include seismic parameters such as velocity, density, anisotropy and attenuation characterizing the subsurface region, and can be iteratively refined to improve image quality, based on the reconstructed source wavefield in comparison to the field data.