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:
Nov. 21, 2017

Filed:

Oct. 26, 2010
Applicants:

Hiroshi Nakajima, Sagamihara, JP;

Toshihiro Kinoshita, Sagamihara, JP;

Hiroshi Hori, Sagamihara, JP;

Alain Dumont, Kawawaki, JP;

Hiroshi Nomura, Sagamihara, JP;

Inventors:

Hiroshi Nakajima, Sagamihara, JP;

Toshihiro Kinoshita, Sagamihara, JP;

Hiroshi Hori, Sagamihara, JP;

Alain Dumont, Kawawaki, JP;

Hiroshi Nomura, Sagamihara, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V 1/44 (2006.01);
U.S. Cl.
CPC ...
G01V 1/44 (2013.01);
Abstract

Apparatus for acoustic measurement in a downhole environment to enable high quality measurements to be obtained in difficult logging conditions are disclosed. An example apparatus includes a downhole tool having a body with a plurality of transmitters located on the body. A receiver is located on the body a distance from the transmitters and an attenuator section is integrally formed on the body between at least one transmitter and the receiver.


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