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:
Jun. 25, 2024

Filed:

Nov. 18, 2022
Applicants:

Wireless Instrumentation Systems As, Trondheim, NO;

Wwt International Coiled Tubing Services, Llc, Houston, TX (US);

Inventors:

Jarl André Fellinghaug, Trondheim, NO;

Anton Kulyakhtin, Trondheim, NO;

Robert Norlander, Houston, TX (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 47/16 (2006.01); E21B 47/002 (2012.01); E21B 47/085 (2012.01); E21B 47/26 (2012.01); E21B 49/00 (2006.01);
U.S. Cl.
CPC ...
E21B 47/0025 (2020.05); E21B 47/16 (2013.01); E21B 47/26 (2020.05); E21B 49/003 (2013.01);
Abstract

A method for measuring the thickness of casing in a wellbore and/or analyzing the inner surface of the cased or non-cased wellbore. The method includes an positioning an untethered logging tool in a drill string, receiving the logging tool in a catcher positioned within the drill string, positioning a plurality of ultrasonic transducers with the average distance between the outer surface of the plurality of transducers and an interior surface of the catcher sub being less than 0.8 mm, and moving the drill string and the logging tool toward a mouth of the borehole while transmitting acoustic waves through the catcher sub toward the wellbore casing and receiving acoustic waves back to the logging tool after the acoustic waves interact with the wellbore casing and reflect through the catcher.


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