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:
Oct. 08, 2019
Filed:
Oct. 07, 2016
Baker Hughes Incorporated, Houston, TX (US);
Babak Kouchmeshky, Kingwood, TX (US);
Xiaochu Yao, Houston, TX (US);
Stanislav Forgang, Houston, TX (US);
Pawel J. Matuszyk, Spring, TX (US);
Marc S. Ramirez, Missouri City, TX (US);
Otto N. Fanini, Houston, TX (US);
Douglas J. Patterson, Magnolia, TX (US);
Vimal Shah, Houston, TX (US);
Baker Hughes, a GE company, LLC, Houston, TX (US);
Abstract
Systems, devices, and methods for estimating a value of a downhole parameter of interest. Aspects include an apparatus for evaluating a tubular. The apparatus may include a sensor including an electromagnetic acoustic transducer (EMAT) device configured to be conveyed into the tubular. The EMAT device may include measurement circuitry comprising at least one conductive coil; and a magnet array comprising magnets arranged with a corresponding direction of magnetization of each magnet oriented according to a configuration producing a greater magnetic flux on a first side of the array than on a second side opposing the first side. The magnetic flux produced from the second side may be substantially zero. In embodiments, the configuration of magnets comprises at least a first set of permanent magnets in a linear Halbach configuration.