Volume 45 Issue 2
Mar.  2017
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WEI Na, CHEN Guangling, GUO Ping, LI Qingping, LYU Xin. The Development and Experimental Testing of Gas Hydrate Degassing Devices[J]. Petroleum Drilling Techniques, 2017, 45(2): 121-126. DOI: 10.11911/syztjs.201702020
Citation: WEI Na, CHEN Guangling, GUO Ping, LI Qingping, LYU Xin. The Development and Experimental Testing of Gas Hydrate Degassing Devices[J]. Petroleum Drilling Techniques, 2017, 45(2): 121-126. DOI: 10.11911/syztjs.201702020
shu

The Development and Experimental Testing of Gas Hydrate Degassing Devices

  • 1.

    State Key Laboratory of Oil and Gas Geology and Exploration, Southwest Petroleum University, Chengdu, Sichuan, 610500, China;

  • 2.

    CNOOC Research Institute, Beijing, 100027, China

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  • Received Date: September 11, 2016
  • Revised Date: February 15, 2017
    Graphical Abstract
    • Abstract
  • During gas hydrate logging, degassing devices connected with the shale shaker have extremely low degassing efficiencies. Accordingly, degassing devices designated for gas hydrate logging have been developed. To determine the performances of these devices, lab tests were performed. By using experiment facilities with a length of 0.7 m, a width of 0.7 m and a height of 1.7 m, numerical simulations and lab tests were conducted with gas/liquid ratios of 10%-30% and rotation speeds of 0.33-1.33 r/s to determine the degassing efficiencies of these facilities. Test results showed that under identical rotation speeds, the maximum degassing efficiency of the degassing device could be achieved with gas/liquid ratio of 30% in both numerical simulation and lab tests. At the same time, under identical gas/liquid ratio, the highest degassing efficiency could be observed in degassing devices with a rotation speed of 1.00 r/s. Research results showed that gas hydrate degassing devices could significantly enhance degassing efficiency with an optimal gas/liquid ratio of 30% and a rotation speed of 1.00 r/s.
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    • References (16)
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