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:
Jul. 11, 2006
Filed:
Sep. 29, 2003
Jacques R. Tabanou, Houston, TX (US);
Dzevat Omeragic, Sugar Land, TX (US);
Jean Seydoux, Sugar Land, TX (US);
Attilio C. Pisoni, Houston, TX (US);
Jacques R. Tabanou, Houston, TX (US);
Dzevat Omeragic, Sugar Land, TX (US);
Jean Seydoux, Sugar Land, TX (US);
Attilio C. Pisoni, Houston, TX (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
A resistivity logging sensor for logging while drilling a well using an oil-based mud includes a sensor body; a first current injector electrode disposed on the sensor body, wherein the first current injector electrode is electrically insulated from the sensor body; at least two current return electrodes disposed on the sensor body at a selected distance from the first current injector electrode, wherein the at least two current return electrodes are disposed proximate to each other and are electrically insulated from the sensor body; and an electrical source configured to energize the first current injector electrode with a current having a voltage of no less than 50 mvolts and a frequency of no less than 1 KHz.