祁连山木里地区天然气水合物地球化学勘查  

GEOCHEMICAL EXPLORATION OF NATURAL GAS HYDRATE IN MULI PERMAFROST AREA IN THE QILIAN MOUNTAIN

作　　者：杨志斌[1] 周亚龙[1] 孙忠军[1] 赵德禧 张富贵[1] 

机构地区：[1]中国地质科学院地球物理地球化学勘查研究所,河北廊坊065000 [2]青海省第一地质矿产勘查院,青海平安810600

出　　处：《物探与化探》2013年第6期988-992,共5页Geophysical and Geochemical Exploration

基　　金：国土资源部公益性行业科研专项项目(201111019);中国地质调查局天然气水合物勘查与试采专项项目(GZHL20110303);油气地球化学填图试点研究项目(1212011120974);中央级公益性科研院所基本科研业务费专项资金(AS2010J07)

摘　　要：目前,陆域永久冻土带天然气水合物勘查没有形成一种有效的勘测技术,成为冻土带水合物勘探的瓶颈。笔者在祁连山木里天然气水合物发现区进行地球化学勘查方法技术试验,试验结果表明:水合物发现区浅表土壤酸解烃、顶空气等地球化学指标具有明显异常,地球化学异常与水合物为同源成因,初步提出木里地区天然气水合物地球化学勘查模式。The obtaining of natural gas in borehole DK-1 in Muli area of Qilian Mountain in 2008 marks the fact that the study of natural gas hydrate in permafrost has entered into a new stage. However,there has been no effective survey technology,which constitutes the bottle neck of permafrost natural gas hydrate exploration. The authors examined the method and technique of geochemical exploration,and have reached the conclusion that acidolysis hydrocarbon,headspace gas and other geochemical indicators in shallow soil are obvious abnormal in places where natural gas can be obtained. The geochemical anomaly and natural gas hydrate are of homologous genesis,and hence this paper tentatively proposes a geochemical exploration model for natural gas hydrate in Muli area.

关 键 词：天然气水合物 异常成因 地球化学勘查 永久冻土带 

分 类 号：P632[天文地球—地质矿产勘探]