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:
Sep. 17, 2013
Filed:
Jan. 04, 2011
Sunwoong Lee, Houston, TX (US);
Jerome R. Krebs, Houston, TX (US);
John E. Anderson, Houston, TX (US);
Anatoly Baumstein, Houston, TX (US);
David L. Hinkley, Spring, TX (US);
Sunwoong Lee, Houston, TX (US);
Jerome R. Krebs, Houston, TX (US);
John E. Anderson, Houston, TX (US);
Anatoly Baumstein, Houston, TX (US);
David L. Hinkley, Spring, TX (US);
ExxonMobil Upstream Research Company, Houston, TX (US);
Abstract
Method for converting seismic data to obtain a subsurface model of, for example, bulk modulus or density. The gradient of an objective function is computed () using the seismic data () and a background subsurface medium model (). The source and receiver illuminations are computed in the background model (). The seismic resolution volume is computed using the velocities of the background model (). The gradient is converted into the difference subsurface model parameters () using the source and receiver illumination, seismic resolution volume, and the background subsurface model. These same factors may be used to compensate seismic data migrated by reverse time migration, which can then be related to a subsurface bulk modulus model. For iterative inversion, the difference subsurface model parameters () are used as preconditioned gradients ().