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:
Jul. 21, 2020
Filed:
Apr. 23, 2015
Applicant:
Top-co Inc., Houston, TX (US);
Inventor:
Gregory James Alexander Andrigo, Almonte, CA;
Assignee:
TOP-CO INC., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/16 (2006.01); E21B 21/10 (2006.01);
U.S. Cl.
CPC ...
E21B 33/16 (2013.01); E21B 21/10 (2013.01);
Abstract
A wellbore sealing system includes a dart retained in a top plug and deployable through a bore defined in the top plug and through a bore defined in the bottom plug to sealingly engage float equipment abutting the bottom plug. The dart and float equipment bear wellbore pressure directly. The dart latches with the float equipment and sealing features provide bi-directional sealing.