Experimental study of stable surfaces for anti-slug control in multi-phase flow

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• 作者：Simon Pedersen ; Petar Durdevic…
• 关键词：Offshore ; oil and gas ; anti ; slug ; flow control ; production ; rate optimization ; stabilization ; bifurcation
• 刊名：International Journal of Automation and Computing
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：13
• 期：1
• 页码：81-88
• 全文大小：3,848 KB
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• 作者单位：Simon Pedersen (1)
  Petar Durdevic (1)
  Kasper Stampe (1)
  Sandra Lindberg Pedersen (1)
  Zhenyu Yang (1)
  
  1. Department of Energy Technology, Aalborg University, Esbjerg Campus, Niels Bohrs Vej 8, 6700, Esbjerg, Denmark
  
• 刊物类别：Engineering
• 刊物主题：Automation and Robotics
  Computer Applications
  Computer-Aided Engineering and Design
  Chinese Library of Science
  
• 出版者：Institute of Automation, Chinese Academy of Sciences, co-published with Springer-Verlag GmbH
• ISSN：1751-8520

文摘

Severe slugging flow is always challenging in oil & gas production, especially for the current offshore based production. The slugging flow can cause a lot of problems, such as those relevant to production safety, fatigue as well as capability. As one typical phenomenon in multi-phase flow dynamics, the slug can be avoided or eliminated by proper facility design or control of operational conditions. Based on a testing facility which can emulate a pipeline-riser or a gas-lifted production well in a scaled-down manner, this paper experimentally studies the correlations of key operational parameters with severe slugging flows. These correlations are reflected through an obtained stable surface in the parameter space, which is a natural extension of the bifurcation plot. The maximal production opportunity without compromising the stability is also studied. Relevant studies have already showed that the capability, performance and efficiency of anti-slug control can be dramatically improved if these stable surfaces can be experimentally determined beforehand. The paper concludes that obtaining the stable surface on the new developed map can significantly improve the production rate in a control scheme. Even though the production rate can be further improved by moving the stable surface using advanced control strategies, the constant inputs can in some cases be preferable due to the easier implementation. Keywords Offshore oil and gas anti-slug flow control production-rate optimization stabilization bifurcation