源岩吸附烃和天然气轻烃指纹参数的开发和应用

THE DEVELOPMENT AND APPLICATION OF FINGERPRINT PARAMETERS FOR HYDROCARBONS ABSORBED BY SOURCE ROCKS AND LIGHT HYDROCARBONS IN NATURAL GAS

胡惕麟 戈葆雄 张义纲 刘斌

Hu Tilin Ge Baoxiong Chang Yigang Liu Bin

地质矿产部石油地质中心实验室 无锡

Central Laboratory of Petroleum Geology, MGMR

通过源岩吸附烃和天然气轻烃指纹特征的研究,开发并筛选出甲基环己烷指数(MCH)和环烷指数Ⅰ(CA1),分别作为轻烃指纹中最佳的母质类型参数和成熟度参数。运用轻烃指纹参数指标,可以识别天然气和源岩的母质类型、成熟度等特征;进行气/气、气/源岩直接对比,追索气源岩,为天然气成因分类和气源岩评价提供一种快速有效、简便经济的新方法。

Among the fingerprint parameters of light hydrocarbon,indexes of MCH and CA are developed and selected as optimum parameters for parent material type and maturity, respectively, by studying the characteristics of hydrocarbons absorbed by source rocks and light hydrocarbons in natural gas. Applying these parameters, we can identify the types of natural gas and source rocks as well as determine maturity; and make direct correlations of gas/gas and gas/source rock. This new method is considered as n efficient, simple and economical measure in identifying the origin of natural gas and estimating gas source rocks.

https://doi.org/10.11781/sysydz199004375