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本帖最后由 zhangyj_upc 于 2015-5-22 17:39 编辑
The Aker Solutions Safety Joint is a newly qualified product, developed to minimize or prevent the impact of structural damage and permanent leakage of well barriers caused by abnormal load conditions.
The safety joint is designed to break off before any load combination of effective tension, bending moment and internal overpressure exceeds the yield capacity threshold of the permanent well barriers.
It enables safe and quick disconnection of the riser string in case of any accidental scenario:
- Failure or lockup of riser tensioners or heave compensator
- Dysfunction in mooring line or dynamic positioning (DP) causing the vessel to move off location
- Loss of stickup and stroke margin causing stroke-out and high riser tension
In combination with Global Riser Analysis (GRA), this safety joint has several unique features which bring significant operational and HSE improvements:
- Increases operational envelope and safety margins
- Limits the impact of recoil energy as the safety joint releases
- Ensures safer well control via automatic initiation of Emergency Shutdown (ESD)
- Reduces risk of spillage.
- Allows the riser to be run in harsher weather and environmental conditions thanks to a strong mode functionality that temporarily increases joint capacity
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发表于 2015-5-22 17:31
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