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:
Apr. 23, 2024
Filed:
Feb. 04, 2022
Applicant:
The Wellboss Company, Inc., Calgary, CA;
Inventors:
Chad Michael Erick Gibson, The Woodlands, TX (US);
Derek Slater Payne, Katy, TX (US);
Clay Edward Chambers, Richmond, TX (US);
Martin Paul Coronado, Fulshear, TX (US);
Assignee:
The WellBoss Company, Inc., Calgary, CA;
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/26 (2006.01); E21B 33/13 (2006.01);
U.S. Cl.
CPC ...
E21B 43/261 (2013.01); E21B 33/13 (2013.01); E21B 2200/08 (2020.05);
Abstract
A downhole system for multistage fracturing wherein a stopper assembly is installed in a plugging device in manner that allows pressure integrity from above the plugging device, and the stopper assembly is further configured to allow a bore of the plugging device to open with an at least minimal pressure from therebelow in order to remove a stopper from a baffle in order to open a flow path through the plugging device in either direction.