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Geochemical Features of the Gas Hydrate in the Movable Zone of the Qinghai-Tibet Plateau Permafrost
Author(s): 
Pages: 33-35
Year: Issue:  2
Journal: GANSU METALLURGY

Keyword:  青藏高原多年冻土区活动带天然气水合物地球化学特征;
Abstract: 本研究通过对西大滩-安多油气地球化学剖面的研究,表明土壤样品酸解氢、酸解甲烷、酸解乙烷、酸解丙烷和热释汞异常的综合解释有助于对地下是否存在水合物做出推断,在烃类出现"负异常"时,可能是地下赋存水合物的标志.并结合前人文献初步建立了多年冻土区活动带天然气水合物地球化学勘查模式.因此土壤地球化学测量可用于在多年冻土区活动带探测水合物,但其异常解释不能完全照搬油气藏化探模式,必须把渗透性极差的冻土层对烃类气体向地表运移的影响考虑进去.
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