Origin Discrimination of CO2 Gas Pools in Jiyang Depression

Abstract

Abstract: The origin discrimination of CO₂ gas pool is mainly based on CO₂ volume ratio, δ¹³C, R/Ra and CO₂/³He, etc. It is believed that six CO₂ gas pools found in Jiyang depression are identified to be inorganic origin ones based on these indices, of which Pingfangwang gas pool originated from CO₂ with nearly equal proportion of mantle and crust compositions; Pingnan gas pool has more crust composition; Huagou, Gaoqing and Yang-25 Well gas pools have more mantle compositions.

Key words: Jiyang depression, carbon dioxide, origin, isotope

CLC Number:

TE122.2

DU Ling-tong, LV Xin-biao, CHEN Hong-han. Origin Discrimination of CO₂ Gas Pools in Jiyang Depression[J]. Xinjiang Petroleum Geology, 2006, 27(5): 629-632.

References

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Origin Discrimination of CO₂ Gas Pools in Jiyang Depression

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