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. 30, 2022
Filed:
May. 14, 2021
Applicant:
Lee Specialties Inc., Blackfalds, CA;
Inventor:
Daine Strankman, Red Deer, CA;
Assignee:
Lee Specialties Inc., Blackfalds, CA;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/072 (2006.01); E21B 17/02 (2006.01);
U.S. Cl.
CPC ...
E21B 33/072 (2013.01); E21B 17/025 (2013.01);
Abstract
The described pack-off assembly includes a tubular sleeve that is configured to selectively encompass a pack-off wireline seal and that is positionable through selective application of pressurized fluid to one or more actuation chambers that interact with a piston portion of the sleeve. Pressure may be applied to position the sleeve to encompass the seal to engage a wireline and enable pressure-control wireline operations. A different pressure may be applied to position the sleeve to expose the seal for servicing.