Distribution of Inorganic Carbon Dioxide in Southern Songliao Basin
Received date: 2008-06-10
Revised date: 2008-07-27
Online published: 2008-10-10
Geochemical indexes indicate that the gas reservoirs with high CO2 content in many parts of Southern Songliao Basin belong to inorganic-origin gas. According to the study of the tectonic characteristics of deep layers, the distribution of heat flow piercement and the main fault system in the Changling depression, this paper concludes that the heat flow piercement is the source of mantle resources, the low velocity and high conduction zone in the deep layer of Songliao Basin is a midstation for transferring mantle derived carbon dioxide into the shallow reservoir, and large volcanic activities during rift faulting are the most important reservoir of inorganic gas. And the inorganic CO2 is mainly distributed in the large lava adjoining to the Changling and Qian’an Qianshenzi fault.
YANG Hui-dong ; YAO Ping ; ZHANG Xu ; LIU Li ; YANG Yan-cheng; WANG Chang-jiang . Distribution of Inorganic Carbon Dioxide in Southern Songliao Basin[J]. Natural Gas Geoscience, 2008 , 19(05) : 634 -638 . DOI: 10.11764/j.issn.1672-1926.2008.05.634
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