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:
Aug. 07, 2012
Filed:
May. 14, 2009
Xinyou LU, Missouri City, TX (US);
Charlie Jing, Houston, TX (US);
Thomas A. Dickens, Houston, TX (US);
Dennis E. Willen, Houston, TX (US);
Xinyou Lu, Missouri City, TX (US);
Charlie Jing, Houston, TX (US);
Thomas A. Dickens, Houston, TX (US);
Dennis E. Willen, Houston, TX (US);
ExxonMobil Upstream Research Company, Houston, TX (US);
Abstract
A method for suppressing measurement system signature, or artifacts, that arise when controlled source electromagnetic survey data are inverted to obtain a resistivity image of a subsurface region. The method involves identifying regions () where the image has low or rapidly varying sensitivity to data acquired by a given receiver, typically regions close to and under the given receiver. Then, in the iterative inversion process where a resistivity model is updated to minimize an objective function, the model update is modified () to reduce the impact of such low sensitivity regions on the update.