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:
Mar. 31, 2015
Filed:
Nov. 01, 2012
Halliburton Energy Services, Inc., Houston, TX (US);
Arthur F. Kuckes, Ithaca, NY (US);
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
A method and apparatus for magnetic field measurements to determine the proximity of a nearby target incorporating electrically conductive material includes a drill string () having multiple drill pipe sections () connected end-to-end, with at least one of the drill pipe sections () being electrically conductive and isolated to provide an electrode section. A nonmagnetic drill pipe section () is connected in the drill string below the electrode section (), and a hydraulic motor () having a rotatable drill bit sub () carrying a magnetic field sensing instrument package () is connected to a lowermost end of the drill string. A power supply provides a time-varying current to the drill pipe electrode section () to produce a corresponding target current magnetic field to be detected at the drill bit instrument (), and a communication instrument package () is locatable within the nonmagnetic drill pipe section () to receive magnetic field data from the magnetic field sensing instrument package () on the drill bit ().
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile