Invention Grant
- Patent Title: Riser tensioner
- Patent Title (中): 升降机张紧器
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Application No.: US13496195Application Date: 2010-09-13
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Publication No.: US09051784B2Publication Date: 2015-06-09
- Inventor: Christian B. Von Der Ohe , David Bengt Johan Ankargren
- Applicant: Christian B. Von Der Ohe , David Bengt Johan Ankargren
- Applicant Address: NO
- Assignee: NATIONAL OILWELL VARCO NORWAY AS
- Current Assignee: NATIONAL OILWELL VARCO NORWAY AS
- Current Assignee Address: NO
- Agency: Conley Rose, P.C.
- Priority: NO20093004 20090915
- International Application: PCT/NO2010/000335 WO 20100913
- International Announcement: WO2011/034437 WO 20110324
- Main IPC: E21B7/12
- IPC: E21B7/12 ; E21B19/00
Abstract:
An apparatus for tensioning a marine riser comprising a support for a number of actuators, where the support is connected to a vessel's structure, and where each actuator is connected to the support and to a marine riser, and where elements of the riser tensioner apparatus are enclosed.
Public/Granted literature
- US20120217016A1 RISER TENSIONER Public/Granted day:2012-08-30
Information query
