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. 23, 2020
Filed:
Apr. 24, 2017
Applicant:
Ncs Multistage Inc., Calgary, CA;
Inventors:
Tim Johnson, Calgary, CA;
John Ravensbergen, Calgary, CA;
Assignee:
NCS Multistage Inc., Calgary, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 31/14 (2006.01); E21B 34/14 (2006.01); E21B 47/09 (2012.01); E21B 34/00 (2006.01); E21B 43/26 (2006.01);
U.S. Cl.
CPC ...
E21B 34/14 (2013.01); E21B 47/09 (2013.01); E21B 43/26 (2013.01); E21B 2034/007 (2013.01);
Abstract
In one aspect, there is provided a flow control apparatus comprising a confirmation profile that is establishable, in response to completion of a wellbore operation that has changed a condition of the flow control apparatus, for releasably retaining an indicator tool that is being displaced within the wellbore via a workstring.