汪家屯气田天然气气源追索新方法

NEW TRACING METHOD OF NATURAL GAS SOURCE IN WANGJIATUN GAS FIELD

本文根据碳同位素分馏理论，建立了气态烃（Ｃ＿１－Ｃ＿３）的碳同位素差值与分馏反应温度的关系．提出了利用气态烃的碳同位素差值追索气源的方法，并对汪家屯气田的天然气气源进行了追索，与实际较吻合。

In light of the carbon isotope fractionation theory,this paper establishes therelationship between carbon isotopic differentiation and temperature of fractionation,Arnethod for tracing natural gas source by carbon isotopic differentiation is put forward,bywhich the natural gas source in Wangjiatun gas field is traced and later proves to be identicalwith reality.