Invention Grant
- Patent Title: Offshore well drilling system with nested drilling risers
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Application No.: US14876058Application Date: 2015-10-06
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Publication No.: US10329852B2Publication Date: 2019-06-25
- Inventor: William Puccio , David Cain , Vijay A. Cheruvu , Shian Jiun Chou
- Applicant: Cameron International Corporation
- Applicant Address: US TX Houston
- Assignee: Cameron International Corporation
- Current Assignee: Cameron International Corporation
- Current Assignee Address: US TX Houston
- Agent Helene Raybaud
- Main IPC: E21B17/01
- IPC: E21B17/01 ; E21B7/12 ; E21B19/00 ; E21B7/132

Abstract:
An offshore well system for a subsea well includes an internal riser tension device configured to apply tension to an internal riser and an external riser tension device configured to apply tension to an external riser such that the external riser is supported at least partially independent of the internal riser tension device.
Public/Granted literature
- US20160024861A1 Offshore Well Drilling System With Nested Drilling Risers Public/Granted day:2016-01-28
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