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:
Jan. 21, 2014
Filed:
Mar. 05, 2013
Robert England, Flower Mound, TX (US);
Arthur Thompson, Houston, TX (US);
Alan Katz, Dallas, TX (US);
Mohammad Rahman, Dallas, TX (US);
Naga P. Devineni, Irving, TX (US);
Robert England, Flower Mound, TX (US);
Arthur Thompson, Houston, TX (US);
Alan Katz, Dallas, TX (US);
Mohammad Rahman, Dallas, TX (US);
Naga P. Devineni, Irving, TX (US);
Hunt Energy Enterprises, LLC, Dallas, TX (US);
Abstract
An apparatus includes a conductive plate operable to generate a reference signal and a shield configured to surround at least a portion of the conductive plate and to attenuate at least a portion of a horizontal electromagnetic signal. The apparatus also includes an electrode configured to be electrically coupled to the shield and to a ground, where the electrode is responsive to a vertical electromagnetic signal, and the vertical electromagnetic signal generated by a subsurface earth formation in response to an electroseismic or seismoelectric conversion of a passive electromagnetic source signal. The apparatus also includes an amplifier comprising a first input and a second input, where the first input is configured to electrically couple to the conductive plate and the second input is configured to electrically couple to the electrode.