Invention Grant
- Patent Title: Annular barrier with a seal
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Application No.: US14385539Application Date: 2013-03-27
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Publication No.: US09963952B2Publication Date: 2018-05-08
- Inventor: Jørgen Hallundbæk , Lars Stæhr
- Applicant: WELLTEC A/S
- Applicant Address: DK Allerød
- Assignee: WELLTEC A/S
- Current Assignee: WELLTEC A/S
- Current Assignee Address: DK Allerød
- Agency: Nixon & Vanderhye, P.C.
- Priority: EP12162458 20120330
- International Application: PCT/EP2013/056468 WO 20130327
- International Announcement: WO2013/144181 WO 20131003
- Main IPC: E21B33/127
- IPC: E21B33/127

Abstract:
A downhole annular barrier with an axial extension having an outer surface facing an inner surface of an outer structure has a tubular part, an expandable part, and at least one annular sealing element. The annular sealing element is connected with the expandable part and has an axial length along the axial extension of the downhole annular barrier which is less than 50% of a length of the downhole annular barrier along the axial extension of the downhole annular barrier. The annular sealing element has a spring element.
Public/Granted literature
- US20150068774A1 ANNULAR BARRIER WITH A SEAL Public/Granted day:2015-03-12
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