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. 10, 2007
Filed:
Jun. 14, 2005
Allen Young, Houston, TX (US);
Michael Nero, Houston, TX (US);
Laurence Barry, Alberta, CA;
Hugh Hawthorne, Casper, WY (US);
Robert Villarreal, Angleton, TX (US);
Allen Young, Houston, TX (US);
Michael Nero, Houston, TX (US);
Laurence Barry, Alberta, CA;
Hugh Hawthorne, Casper, WY (US);
Robert Villarreal, Angleton, TX (US);
Weatherford/Lamb, Inc., Houston, TX (US);
Abstract
The present invention generally provides methods and apparatus for reducing noise in a detected electromagnetic wave used to telemeter data during a wellbore operation. In one embodiment, two surface antennae are placed on opposite sides of the wellbore and at the same distance from the wellbore. The signals from the two antennae are summed to reduce the noise in the electromagnetic signal transmitted from the electromagnetic downhole tool.