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:
Aug. 10, 2021
Filed:
May. 06, 2019
Weatherford Technology Holdings, Llc, Houston, TX (US);
Maxime R. Rodrigue, Vacherie, LA (US);
Philip E. Dufrene, Houma, LA (US);
Beau H. Martin, Raceland, LA (US);
Christian Kiess, Hannover, DE;
Martin Helms, Burgdorf, DE;
Adam Kyzar, Houma, LA (US);
WEATHERFORD TECHNOLOGY HOLDINGS, LLC, Houston, TX (US);
Abstract
A centralizer sub for cementing a tubular string in a wellbore includes: a tubular body; a centralizer disposed along an outer surface of the body and having a pair of collars and a plurality of bow springs connecting the collars; and a joint longitudinally coupling the centralizer to the body. The joint has a groove formed in and around the body outer surface, and a plurality of protrusions formed integrally with or mounted to one of the collars and configured to mate with the groove.