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:
Apr. 10, 2007
Filed:
Jun. 24, 2004
Dzevat Omeragic, Sugar Land, TX (US);
Qiming LI, Sugar Land, TX (US);
Lawrence Chou, Pearland, TX (US);
Libo Yang, Sugar Land, TX (US);
Chengbing Liu, Houston, TX (US);
Jan Smits, Sugar Land, TX (US);
Dzevat Omeragic, Sugar Land, TX (US);
Qiming Li, Sugar Land, TX (US);
Lawrence Chou, Pearland, TX (US);
Libo Yang, Sugar Land, TX (US);
Chengbing Liu, Houston, TX (US);
Jan Smits, Sugar Land, TX (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
A method is described for characterizing a subsurface formation with a logging instrument disposed in a borehole penetrating the formation. The logging instrument is equipped with at least a transmitter system and a receiver system. The method entails positioning the logging instrument within the borehole so that the transmitter system and receiver system are disposed in the vicinity of a formation boundary of interest and measuring the azimuthal orientation of the logging instrument. Electromagnetic energy is transmitted into the formation using the transmitter system and signals associated with the transmitted electromagnetic energy are measured using the receiver system. The method further entails determining the relative azimuth of the formation boundary, composing a symmetrized directional measurement using the measured signals and the determined relative boundary azimuth, and determining the relative dip of the formation boundary using the composed directional measurement.