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:
May. 27, 2008
Filed:
Apr. 06, 2006
Michael B. Rabinovich, Houston, TX (US);
Leonty A. Tabarovsky, Cypress, TX (US);
Bill H. Corley, Conroe, TX (US);
Luis M. Pelegri, Humble, TX (US);
Michael B. Rabinovich, Houston, TX (US);
Leonty A. Tabarovsky, Cypress, TX (US);
Bill H. Corley, Conroe, TX (US);
Luis M. Pelegri, Humble, TX (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
A misalignment angle between the transmitter and receiver antenna of a multicomponent induction logging tool are estimated from quadrature component signals at multiple frequencies. A transmitter antenna having a first axial direction on a logging tool is excited at a plurality of frequencies. Signals responsive to the excitation are received at a receiver antenna having a second axial direction. A direct field between the transmitter antenna and the receiver antenna is obtained by performing multi-frequency focusing of the received signals. The misalignment angle is estimated from the direct field.