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:
Sep. 02, 2014
Filed:
Sep. 07, 2011
Applicants:
Edwin K. Roberts, Benbrook, TX (US);
Lucio Nelson Tello, Benbrook, TX (US);
Inventors:
Edwin K. Roberts, Benbrook, TX (US);
Lucio Nelson Tello, Benbrook, TX (US);
Assignee:
Weatherford/Lamb, Inc., Houston, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
G01V 1/52 (2006.01); E21B 47/00 (2012.01); G01V 1/44 (2006.01); E21B 47/10 (2012.01);
U.S. Cl.
CPC ...
G01V 1/44 (2013.01); E21B 47/101 (2013.01);
Abstract
An ultrasonic scanner tool employs a transducer that excites a target plate at a known distance from the transducer. One side of the target plate forms a chamber that in operation is filled with wellbore fluid. On the other side of the target plate, a chamber is formed containing a vacuum or a fluid with a significantly lower acoustic impedance than the wellbore fluid and the target plate, allowing an improved measurement of the acoustic impedance of the wellbore fluid.