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. 31, 2017
Filed:
Dec. 20, 2012
Applicant:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Inventors:
Hitoshi Sugiyama, Sagamihara, JP;
Yoshino Sakata, Sagamihara, JP;
Assignee:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01V 3/18 (2006.01); G01V 1/52 (2006.01); G01V 1/46 (2006.01); G01V 1/44 (2006.01); E21B 47/01 (2012.01);
U.S. Cl.
CPC ...
G01V 3/18 (2013.01); E21B 47/01 (2013.01); G01V 1/44 (2013.01); G01V 1/46 (2013.01); G01V 1/52 (2013.01); G01V 1/523 (2013.01);
Abstract
Acoustic isolators are disclosed herein. An example apparatus includes a transmitter to transmit an acoustic signal. The example apparatus also includes an acoustic isolator substantially surrounding a receiver, and the receiver is to receive the acoustic signal via an opening in the acoustic isolator. The transmitter and the acoustic isolator are coupled to a base. The acoustic isolator includes a first layer coupled to a second layer defining a plurality of spaces. The second layer is to provide an acoustic impedance mismatch.