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:
May. 15, 2018
Filed:
May. 23, 2016
Applicant:
Welltec A/s, Allerød, DK;
Inventor:
Jørgen Hallundbæk, Græsted, DK;
Assignee:
WELLTEC A/S, Allerød, DK;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 23/00 (2006.01); E21B 23/06 (2006.01); E21B 23/14 (2006.01); E21B 43/10 (2006.01); E21B 33/127 (2006.01);
U.S. Cl.
CPC ...
E21B 23/00 (2013.01); E21B 23/06 (2013.01); E21B 23/14 (2013.01); E21B 33/127 (2013.01); E21B 43/10 (2013.01); E21B 43/103 (2013.01);
Abstract
A downhole system includes an upper casing that is connected to a lower casing via an annular barrier that expands upon application of pressurized fluid. The lower casing may also include additional annular barriers to fasten the lower casing relative to the borehole.