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. 28, 2020
Filed:
Oct. 31, 2013
Halliburton Energy Services, Inc., Houston, TX (US);
Minh Dang Nguyen, Singapore, SG;
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
One example of an acoustic signal attenuator for LWD/MWD logging systems can be implemented as an acoustic well logging tool positionable in a wellbore. The tool includes a longitudinal tool body. An acoustic signal transmitter and an acoustic signal receiver are mounted in the tool body and spaced longitudinally apart from each other. An acoustic signal attenuator which includes multiple slots formed in an outer surface of a portion of the tool body is positioned between the transmitter and the receiver. Each slot includes multiple protrusions extending from an inner surface of the slot into the slot. In operation, the multiple protrusions in each slot operate to attenuate an acoustic signal propagating from the transmitter to the receiver through the tool body.