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. 24, 2024
Filed:
Jan. 10, 2023
Applicant:
Weatherford Technology Holdings, Llc, Houston, TX (US);
Inventors:
Eric R. Evans, Houston, TX (US);
Jobby T. Jacob, Houston, TX (US);
Assignee:
Weatherford Technology Holdings, LLC, Houston, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/16 (2006.01); E21B 34/10 (2006.01); E21B 47/117 (2012.01);
U.S. Cl.
CPC ...
E21B 33/16 (2013.01); E21B 34/101 (2013.01); E21B 47/117 (2020.05); E21B 2200/06 (2020.05);
Abstract
A plug assembly having valve chamber chargeable with pressure from above or below the plug assembly. The charged chamber is used to selectively move an external sleeve to open fluid communication between the tubular above and below the plug assembly.