有机质碳同位素的成熟分馏作用及地质意义

FRACTIONATION OF CARBON ISOTOPES OF ORGANIC MATTER AND ITS GEOLOGICAL SIGNIFICENCE

张文正

Zhang Wenzheng

石油工业部长庆石油勘探开发研究院

Chang Qing Research Institute of Petroleum Exploration and Development

本文以各种热模拟实验产物的稳定碳同位素分析为基础,对有机质热演化产物的油、油族组份。气态烃、残渣的稳定碳同位素动力分馏机制进行探讨。同时提出区分低演化凝析油(煤系产物)与高成熟凝析油(原油裂解产物)的新方法,为识别天然气成因类型提供了新的途径。

With analyses of stable carbon isotopes on various products obtained from thermal simulated experiments,the dynamical fractionating mechanisms of stable carbon isotopes of thermal evolutionary products of such as oil and its group components,gaseous hydrocarbons,and residues were studied.In add-ition a new method was proposed which could be used for distinguishing con-densates of low maturity(products of coal measures)from condensates of high maturity(products from cracking of crude oil),and for identifying the types of origin of natural gas.

https://doi.org/10.11781/sysydz198902177