收稿日期: 2003-10-12
修回日期: 2003-11-06
网络出版日期: 2004-02-20
CRETACEOUS GAS GENESIS OF LULIANG OIL FIELD AND GEOLOGICAL SIGNIF ICANCE IN ZHUNGAER BASIN
Received date: 2003-10-12
Revised date: 2003-11-06
Online published: 2004-02-20
李连民,陈世加,王绪龙,胡守志 . 准噶尔盆地陆梁油气田白垩系天然气的成因及其地质意义[J]. 天然气地球科学, 2004 , 15(1) : 75 -78 . DOI: 10.11764/j.issn.1672-1926.2004.01.75
The natural gas,which is dry in the component and light in the δ13C of methane,is found in Cretaceous reservoir of Luliang oil field in Zhungaer basin. Its δ13C of methane ranges from -56.2‰ to -48.5‰, methane content is 99.8%, and is similar to biogenic gas.The format ion mechanism of gas is analyzed in the paper,the majority of gas derives reserv oir oil degradation gas, the minority derives the biogenic methane in Jurassic c oal stratum .The finding of reservoir oil degradation gas indicates that the sha llow gas has the certain exploration perspective.
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