An Isotopic Geochemistry Approach on the Identification of Gas Sources of Two Wells in Tarim Basin

Abstract

Plenty of geochemical analyses were carried out on natural gas, oil and condensate samples collected from two wells in Tarim Basin and results were employed in interpreting their sources and distinguishing one from the other. The chemical compositions of gases from the both wells showed that they are of oilfied associated gas with a low dry coeffieient. Their carbon isotopic compositions might indicate a mixture of gas sources, and the input of the mantle-derived materials was denied by the isotopic parameters of noble gases, such as ³ He⁴He and⁴ He/²⁰Ne ratios. The age of gases from these two wells was identified to be the Palaeozoic by the ⁴⁰Ar/³⁶Ar ratio.

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References

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An Isotopic Geochemistry Approach on the Identification of Gas Sources of Two Wells in Tarim Basin

Abstract

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通讯作者: 陈斌, bchen63@163.com

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