ADVANCES IN POLAR SCIENCE ›› 2013, Vol. 25 ›› Issue (3): 241-248.DOI: 10.3724/SP.J.2013.00241
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Wang Lifeng,Deng Xiguang,Sha Zhibin,Wu Lushan,Yang Yong
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Abstract: Recent systematical studies show that natural gas hydrate reservoirs identified by the presence of many characteristic geophysical indicators, are highly likely to occur in the continental margins of Antarctica. At the same time, the factor evaluation of several geological conditions which include pressure and temperature, tectonics and sedimentation, are favorable for the hydrocarbon containing fluid migration and the gas hydrate accumulation. So based on the previous scientific background information and heat flow dataset acquired from IHFC (International Heat Flow Commission), we describe the heat flow distribution, analyze the possible gas hydrate thickness and then estimate gas hydrate amount by using the volumetric integration. The result shows that while the average heat flow in Antarctica continental margins is 85.9 mW/m2, higher than the values in the other else gas hydrate sites, the pressure caused by the massive water depth ensures the stabilization of gas hydrate in the sediments. The total volume of gas hydrate estimated, in Antarctica continental margins region of about ~106 km2 extension, is in a range of 0.97×1013–1.63×1013 m3, a considerable economic potential for future energy utilization.
Key words: gas hydrate, Antarctica margins, heat flow, hydrate stability zone, economic potential
Wang Lifeng,Deng Xiguang,Sha Zhibin,Wu Lushan,Yang Yong. RESEARCH ON HEAT FLOW DISTRIBUTION AND GAS HYDRATEECONOMIC POTENTIAL IN ANTARCTICA MARGINS[J]. ADVANCES IN POLAR SCIENCE, 2013, 25(3): 241-248.
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URL: https://journal.chinare.org.cn/EN/10.3724/SP.J.2013.00241
https://journal.chinare.org.cn/EN/Y2013/V25/I3/241