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:
Dec. 22, 2015
Filed:
Jan. 21, 2008
Matthieu Simon, Princeton, NJ (US);
Matthieu Simon, Princeton, NJ (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
An antennaof an electromagnetic probe used in investigation of geological formations GF surrounding a borehole WBH comprises a conductive baseand an antenna element. The conductive basecomprises an opened non-resonant cavity. The antenna elementis embedded in the cavityand goes right through the cavity. The antenna elementis isolated from the conductive base. The antenna elementis coupled to at least one electronic module via a firstA and a secondB port, respectively. The electronic module operates the antenna so as to define either a substantially pure magnetic dipole, or a substantially pure electric dipole.