The Use of Air-Bubble Spoilers To Suppress Vortex-Induced Vibrations of Risers

Author:

Abbassian Fereidoun1,Moros Thanos2

Affiliation:

1. BP Exploration

2. BP Intl.

Abstract

Summary For this paper, we considered the feasibility of a bubble spoiler as a vortex-suppression device. The introduction of bubbles in the flow reduced the dynamic forces on the riser by destroying the vortex-shedding structure. We constructed a semiempirical equation relating the reduction of the vibration amplitude to the amount of air required. Then we considered the effectiveness of bubble spoilers as a suppression device by investigating the dynamic response of a typical jack-up drilling riser for various suppression scenarios. We found that the volume of air required to effectively suppress the vortices was about 2.0 m3/s at 500 kPa.

Publisher

Society of Petroleum Engineers (SPE)

Subject

Fuel Technology

Cited by 5 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. References;Design of Marine Risers with Functionally Graded Materials;2021

2. Suppression of Vortex-Induced Vibration by Fairings on Marine Risers;Journal of Ocean University of China;2020-01-24

3. Stabilisation of a viscoelastic flexible marine riser under unknown spatiotemporally varying disturbance;International Journal of Control;2018-09-11

4. Vortex-induced vibrations and control of marine risers: A review;Ocean Engineering;2018-03

5. Research in EFD and Its Policy Implications;Handbook of Environmental Fluid Dynamics, Volume One;2012-12-12

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