收稿日期: 2003-09-22
修回日期: 2003-09-26
网络出版日期: 2003-12-20
基金资助
国家重点基础研究发展规划项目(编号:2001CB20913)资助.
EXPERIMENT INVESTIGATION ON THE CARBON ISOTOPE AND COMPOSITIONFRACTIONATION OF METHANE DURING GAS MIGRATION BY DIFFUSION
Received date: 2003-09-22
Revised date: 2003-09-26
Online published: 2003-12-20
李剑,刘朝露,李志生, 胡国艺, 严启团,单秀琴,马成华, 王春怡 . 天然气组分及其碳同位素扩散分馏作用模拟实验研究[J]. 天然气地球科学, 2003 , 14(6) : 463 -468 . DOI: 10.11764/j.issn.1672-1926.2003.06.463
Based on the equipment designed and developed by ourself, the experiment has been conducted to investigate on the carbon isotope fractionation of methane during gas migration by diffusion through sedimentary rocks with different chacracteristics. The study indicated, the lower the porosity and the permeability,the higher the fractionation. As for C-{2++}, no measurable fractionation was observed while the composition fractionation somewhat exsited. It is very significant not only for investigation on the path of gas migration but also for research of gas-correlation.
Key words: Natural gas; Carbon isotope; Diffusion; Fractionation; Simulation.
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