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:
Feb. 22, 2011
Filed:
May. 08, 2006
Leonard J. Srnka, Bellaire, TX (US);
Xinyou LU, Missouri City, TX (US);
Olivier M. Burtz, Houston, TX (US);
Leonard J. Srnka, Bellaire, TX (US);
Xinyou Lu, Missouri City, TX (US);
Olivier M. Burtz, Houston, TX (US);
ExxonMobil Upstream Research Co., Houston, TX (US);
Abstract
A method is disclosed for determining earth vertical electrical anisotropy from offshore electromagnetic survey measurements. The method requires both online and offline data, which includes at least one electromagnetic field component sensitive at least predominantly to vertical resistivity and another component sensitive at least predominantly to horizontal resistivity. Using a horizontal electric dipole source, online Eand offline Hmeasurements are preferred. For a horizontal magnetic dipole source, online Hand offline Edata are preferred. magnetotelluric data may be substituted for controlled source data sensitive to horizontal resistivity. Maxwell's equations are solved by forward modeling or by inversion, using resistivity models of the subsurface that are either isotropic or anisotropic.