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Distribution and Mechanic Classification of Gas(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2006年第02期
Page:
53-57
Research Field:
Publishing date:

Info

Title:
Distribution and Mechanic Classification of Gas
Author(s):
XUE HuiZHANG Jin-chuanLIU Li-fangBIAN Chang-rong
School of Energy Resources, China University of Geosciences, Beijing 100083, China
Keywords:
nature gas formation mechanism accumulation mechanism distribution
PACS:
P618.130.1;TE122.1
DOI:
-
Abstract:
Natural gas can be classified by gas formation mechanism and accumulation mechanism. According to gas for- mation mechanism, the types of gas can be divided into organic genetic ones and inorganic genetic ones. From gas accu- mulation mechanism, the types of gas can be divided into the coal-bed gas, shale gas, source-contacting gas or basin-cen- tered gas and tight-sand gas, dissolved gas, normally trapped gas and hydrate etc. Based on the gas classification, it is thought that gas formation spectrum and accumulation spectrum exist in the process of gas migration and accumulation. There are transitional relations among different gas types. The two sorts of mechanisms are not independent but interre- lated. Furthermore, the distribution modes of gas accumulation in foreland basins and rift basins are presented.

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Last Update: 2006-06-20