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:
Jun. 30, 2026
Filed:
Feb. 27, 2024
Schlumberger Technology Corporation, Sugar Land, TX (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
Determining eccentricity and its direction of an inner tubular (e.g., tubing, liner, inner casing, etc.) in a cased hole using pulse-echo signals that are acquired in, for example, a dual-string cased well, being pre-processed for enhancing echo signals from the outer annular boundary and for reducing the inner tubular specular echo and pipe ringing. Disclosed methods also provide propagation speeds, of the signals traversing the annular materials between the inner tubular and outer annular boundary, that is used to identify annular material (e.g., production fluids, brine, water, cement, collapsed formation, etc) and one of the input parameters for dual-string cement evaluation.