Riser tensioner system for use on offshore platforms
Patent
·
OSTI ID:5053607
This patent describes a riser tensioner system adapted for mounting between a floating platform and a riser, and for applying a generally upward force to the riser while allowing limited vertical movement therebetween. It comprises at least first and second spaced apart supports adapted for being supported relative to the platform in spaced-apart relation; a shaft coupled to each of the first and second supports and extending therebetween; a central support having a first end portion coupled to the shaft between the first and second supports and a second end portion adapted for being coupled to the riser; a torsion spring having a first end portion coupled to one of the first and second supports and a second end portion coupled to the central support whereby the torsion spring urges the central support to rotate about the shaft and force the rider generally upward to support the riser; and pretensioning means for applying a bias to the torsion spring whereby the force applied to the central support and riser is enhanced.
- Assignee:
- LTV Energy Products Co., Garland, TX (United States)
- Patent Number(s):
- US 5101905; A
- Application Number:
- PPN: US 7-661461
- OSTI ID:
- 5053607
- Country of Publication:
- United States
- Language:
- English
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