现代地质Issue(5)：995-1001,7.
青海木里三露天冻土天然气水合物气源性质研究
Study on the Nature of Gas Source for Permafrost-associated Gas Hydrate in Sanlutian of Muli,Qinghai
摘要
Abstract
Since the first drilling discovery of gas hydrate samples in Muli of Qilian Mountain permafrost in 2008,the gas source problem has become the focus.On the basis of previous work,the analysis of gas composi-tion and methane carbon and hydrogen isotopes in adsorbed gases from cores,and of gas composition in head-space gas from cores was conducted in the paper.Those samples were collected from the gas hydrate drillings which were invested by Shenhua project in Sanlutian of Muli.Combined with gas composition and methane car-bon and hydrogen isotope feature of gas hydrate in the relevant drillings,the analytical results are to further ex-plore the genesis and properties of gas source for gas hydrate in this area.The results show that the gas source in the study area is of mixed genesis.The gas source is mainly composed of microbial gas partially mixed with a small amount of thermo-genic gas in the eastern part of the study area.The gas source is mainly composed of thermo-genic gas and secondarily of some microbial gas with a small amount of coal-derived gas in the middle to east of the study area.The thermo-genic gas is characteristic of crude oil cracking gas,and partly of microbial transformation gas.关键词
冻土区/天然气水合物/气源/性质/青海木里三露天Key words
permafrost/gas hydrate/gas source/nature/Sanlutian of Muli in Qinghai分类
能源科技引用本文复制引用
卢振权,唐世琪,王伟超,谭盼盼,李清海,刘文进,刘昌岭,李永红..青海木里三露天冻土天然气水合物气源性质研究[J].现代地质,2015,(5):995-1001,7.基金项目
神华青海能源开发有限责任公司“青海省天峻县聚乎更煤矿区三露天天然气水合物调查评价项目”（SHQHNY201307001）；中国地质调查局“祁连山冻土区天然气水合物资源勘查”项目（GZH201400302）；中国地质调查局“陆域天然气水合物环境监测及效应研究”项目（GZH201400308）；中国地质调查局“南祁连盆地油气资源战略调查”项目（1211302108021－3）。 （）
