Title: Carbon Isotopes of Xujiahe Formation Nature Gas in Middle Part of Western Sichuan Depression
Abstract: Carbon isotopes of Xujiahe Formation gas in the middle part of west Sichuan depression indicate that natural gas is of coal-type gas origin.Thermal maturity of natural gas in T3x2 and T3x4 Formations is mature and high mature stage,respectively.δ13C1 values in natural gas of Xiaoquan,Xinchang and Hexingchang is more than that of Gaomiaozi and Fenggu,suggesting that natural gas would be migrated from the former places to the.The different times of hydrocarbon generation and expulsion constrain the migration direction of natural gas which sourced from the source rock.So,the same time of hydrocarbon generation and different time of filling history result in the reversal series of carbon isotopes for different number carbon alkanes gases in the T3x2 Formation.
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: article
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Cited By Count: 3
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