Invention Grant
- Patent Title: Downhole seal
- Patent Title (中): 井下密封
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Application No.: US12865981Application Date: 2009-02-05
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Publication No.: US08727027B2Publication Date: 2014-05-20
- Inventor: Paul Schilte , John Dewar , Arie Vliegenthart
- Applicant: Paul Schilte , John Dewar , Arie Vliegenthart
- Applicant Address: NL Rijswijk
- Assignee: Swellfix B.V.
- Current Assignee: Swellfix B.V.
- Current Assignee Address: NL Rijswijk
- Agency: Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.
- Agent Eric B. Meyertons
- Priority: GB0802237.8 20080207
- International Application: PCT/GB2009/000327 WO 20090205
- International Announcement: WO2009/098465 WO 20090813
- Main IPC: E21B33/128
- IPC: E21B33/128
Abstract:
An expandable downhole seal includes a sealing portion and a deflecting portion adapted to move axially relative to each other to effect radial displacement of the sealing portion, wherein at least one of the sealing portion and the deflecting portion includes a swelling material. In use, radial expansion of the downhole seal may be achieved by the radial displacement of the sealing portion in combination with swelling of the swellable material. A support member is provided to support the sealing portion and deflecting portion.
Public/Granted literature
- US20110193291A1 DOWNHOLE SEAL Public/Granted day:2011-08-11
Information query
