Invention Grant
- Patent Title: Barrier for instrumentation piping
- Patent Title (中): 仪表管道屏障
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Application No.: US12596915Application Date: 2008-04-22
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Publication No.: US08381812B2Publication Date: 2013-02-26
- Inventor: Per Hassel Sørensen , Gunnar Hviding
- Applicant: Per Hassel Sørensen , Gunnar Hviding
- Applicant Address: NO Bergen
- Assignee: Roxar Flow Measurement AS
- Current Assignee: Roxar Flow Measurement AS
- Current Assignee Address: NO Bergen
- Agency: Nixon & Vanderhye P.C.
- Priority: NO20072150 20070425
- International Application: PCT/NO2008/000145 WO 20080422
- International Announcement: WO2008/133527 WO 20081106
- Main IPC: E21B47/10
- IPC: E21B47/10
Abstract:
A well head barrier assembly (1, 2, 3) including a termination of an instrument tube (9) installed in a well and a primary pressure barrier (3) for the well pressure comprising a tool (10) arranged for being pushed into a passage (5) in which the instrument tube (9) is arranged. The closing of the passage (5) provides an additional secondary pressure barrier in the well head, thus enabling re-establishment of a double pressure barrier following a breakage of the instrument tube (9).
Public/Granted literature
- US20100132953A1 BARRIER FOR INSTRUMENTATION PIPING Public/Granted day:2010-06-03
Information query
