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:
Mar. 31, 2026
Filed:
May. 29, 2025
Schlumberger Technology Corporation, Sugar Land, TX (US);
Yong-Hua Chen, Belmont, MA (US);
Zhanke Liu, Cambridge, MA (US);
Lin Liang, Belmont, MA (US);
Tarek M. Habashy, Burlington, MA (US);
Saad Omar, Sharon, MA (US);
SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US);
Abstract
The present disclosure provide techniques and apparatus for magnetic flux leakage (MFL) testing for casing inspection and coiled tubing inspection. An example technique includes operating an inspection tool including at least one sensor arranged in proximity to a coiled tubing. A first set of MFL measurements associated with a first liftoff distance of the sensor with respect to a surface of the coiled tubing is obtained using the inspection tool. A second set of MFL measurements associated with a second liftoff distance of the sensor with respect to the surface of the coiled tubing is generated, based on performing a filtering operation on the first set of MFL measurements. The second liftoff distance is less than the first liftoff distance. At least one defect of the coiled tubing is determined based on the second set of MFL measurements.