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:
Jun. 16, 2020
Filed:
Aug. 07, 2017
Baker Hughes, a GE Company, Llc, Houston, TX (US);
Sheng Fang, Houston, TX (US);
Baker Hughes, a GE Company, LLC, Houston, TX (US);
Abstract
Systems, methods, and devices for evaluation of an earth formation intersected by a borehole using a logging tool. Tools include sensor assemblies with permanent magnets mounted at a first radial distance from an axis of rotation of the sensor assembly, as well as receiver sensors. The sensor assembly is configured to generate an alternating current in a volume of interest of the formation surrounding the borehole with a time varying magnetic field in the volume produced by rotating the sensor assembly about the axis of rotation. Methods include making EM signal measurements or magnetic field measurements with receiver sensors responsive to the alternating current and estimating at least a formation property of the volume using the measurements.