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首页> 外文期刊>Energy & fuels >Study on Gas Hydrate Formation and Hydrate Slurry Flow in a Multiphase Transportation System
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Study on Gas Hydrate Formation and Hydrate Slurry Flow in a Multiphase Transportation System

机译：多相输运系统中天然气水合物的形成和水合物淤浆流的研究

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摘要

As oil and/or gas exploration and production enter deeper water, the flow assurance confronts challenges, one of which is the hydrate formation and blockage. Investigations about gas hydrate formation and hydrate slurry flow in a multiphase transportation system were performed on a newly constructed high-pressure experimental loop. On the basis of the experimental hydrate formation data, an inward and outward hydrate shell model was improved to predict the gas consumed amount during the hydrate formation process. With the help of a focused beam reflectance measurement and particle video microscope installed in this flow loop, the distribution of hydrate particles was observed, characterized in the coalescence and fragmentation. A "minimum safety flow rate" was first addressed for the safety of hydrate slurry flow in a multiphase transportation system. Then, the comparisons between our experimental data of me natural gas hydrate slurry flow pattern and the Mandhane flow pattern map revealed the influence of hydrate particles on the flow pattern of the slurry. Furthermore, the influence of the gas/liquid superficial velocity on the pressure drop was discussed at stratified flow for this gas hydrate slurry multiphase system.
机译：随着石油和/或天然气的勘探和生产进入更深的水中，流量保证面临挑战，其中之一是水合物的形成和堵塞。在新建的高压实验回路上对多相输送系统中天然气水合物的形成和水合物浆液的流动进行了研究。根据实验水合物形成数据，改进了向内和向外的水合物壳模型，以预测水合物形成过程中的气体消耗量。借助于在此流动回路中安装的聚焦光束反射率测量和粒子视频显微镜，观察到水合物粒子的分布，其特征是聚结和破碎。首先针对多相输送系统中水合物浆液流动的安全性提出了“最小安全流速”。然后，我们的天然气水合物矿浆流态实验数据与曼陀罗流态图之间的比较揭示了水合物颗粒对矿浆流态的影响。此外，讨论了该气体水合物浆液多相系统在分层流下气/液表观速度对压降的影响。

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  • 来源
    《Energy & fuels》 |2013年第novaadeca期|7294-7302|共9页
  • 作者

    Xiaofang Lv; Bohui Shi; Ying Wang; Jing Gong;

  • 作者单位

    Technology National Engineering Laboratory for Pipeline Safety, China University of Petroleum, Beijing 102249, People's Republic of China;

    Technology National Engineering Laboratory for Pipeline Safety, China University of Petroleum, Beijing 102249, People's Republic of China;

    Technology National Engineering Laboratory for Pipeline Safety, China University of Petroleum, Beijing 102249, People's Republic of China;

    Technology National Engineering Laboratory for Pipeline Safety, China University of Petroleum, Beijing 102249, People's Republic of China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
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