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.

Date of Patent:
Oct. 25, 2016

Filed:

Aug. 30, 2012
Applicants:

Hiroshi Nakajima, Sagamihara, JP;

Toshihiro Kinoshita, Sagamihara, JP;

Takeo Fujihara, Machida, JP;

Yasuo Kanaya, Machida, JP;

Inventors:

Hiroshi Nakajima, Sagamihara, JP;

Toshihiro Kinoshita, Sagamihara, JP;

Takeo Fujihara, Machida, JP;

Yasuo Kanaya, Machida, JP;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01V 1/18 (2006.01); E21B 47/01 (2012.01);
U.S. Cl.
CPC ...
E21B 47/011 (2013.01); G01V 1/186 (2013.01);
Abstract

Methods and related systems are described relating to a sealed acoustic transducer assembly for use in a wellbore is provided. A tool body is deployed in the wellbore, having a groove and a sealed acoustic transducer assembly removeably mounted therein. The transducer assembly includes an acoustic transducer element, and an elongated fluid filled sealed container housing the transducer element. The container includes flexible portions along the length of the container which allows for volume changes when exposed to changes in external pressure and/or temperature. Acoustic measurements downhole are made using the transducer element.


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