Invention Grant
- Patent Title: Subsea well communications apparatus and method using variable tension large offset risers
- Patent Title (中): 海底井通讯设备及方法采用可变张力大偏移立管
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Application No.: US12118937Application Date: 2008-05-12
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Publication No.: US07748464B2Publication Date: 2010-07-06
- Inventor: Shankar U. Bhat , John Christian Hartley Mungall , David Brian Andersen , Kevin Gerard Haverty , Sean K. Barr , Davinder Manku
- Applicant: Shankar U. Bhat , John Christian Hartley Mungall , David Brian Andersen , Kevin Gerard Haverty , Sean K. Barr , Davinder Manku
- Applicant Address: US TX Houston
- Assignee: Kellogg Brown & Root LLC
- Current Assignee: Kellogg Brown & Root LLC
- Current Assignee Address: US TX Houston
- Agency: KBR IP Legal
- Main IPC: E21B29/12
- IPC: E21B29/12
Abstract:
The current subject matter relates to compliant variable tension risers to connect deep-water subsea wellheads to a single floating platform in wet tree or dry try systems. The variable tension risers allow several subsea wellheads, in water depths from 1220 to 3050 meters, at lateral offsets from one-tenth to twice the depth or more, to tie back to a single floating platform. Also, the current subject matter relates to methods to counter buoyancy and install variable tension risers using a weighted chain ballast line.
Public/Granted literature
- US20080210433A1 Subsea Well Communications Apparatus and Method Using Variable Tension Large Offset Risers Public/Granted day:2008-09-04
Information query
