Volume 31 Issue 2
Apr.  2003
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TANG Feng-lin, ZHANG Sheng-de, JIANG Guo-sheng, Б. Б. Кудряшов, WU Xiang, DOU Bin, GAO Hui. Analytical research on well temperature characteristic while drilling in frozen formations containing natural gas hydrate[J]. COAL GEOLOGY & EXPLORATION, 2003, 31(2): 58-60.
Citation: TANG Feng-lin, ZHANG Sheng-de, JIANG Guo-sheng, Б. Б. Кудряшов, WU Xiang, DOU Bin, GAO Hui. Analytical research on well temperature characteristic while drilling in frozen formations containing natural gas hydrate[J]. COAL GEOLOGY & EXPLORATION, 2003, 31(2): 58-60.
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Analytical research on well temperature characteristic while drilling in frozen formations containing natural gas hydrate

  • 1. Faculty of Engineering, China University of Geosciences, Wuhan 430074, China;

  • 2. S-Petersburg Mining Institute, S-Petersburg, 199026, Russia

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  • Received Date: April 09, 2002
  • Available Online: March 21, 2023
    Graphical Abstract
    • Abstract
  • A mathematical model of temperature situations in the well is suggested based heat exchange principle. According to the model temperature of any depth and any time of drilling well can be calculated.Taking cold air as a circulation medium, a simplified calculation formula of the well temperature while drilling the formations with cold air is given. According to the formula temperature of any depth and any time of drilling the well with cold air can be calculated and representative dependence curves are given. Based the results of the calculating and considering, the temperature in annular space outside the drill stem should be no more than Ot,and corresponding suggestions are proposed.
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