沥青质脱附烃地球化学特征及其意义

被引：5

作者：

潘长春

肖中尧

机构：

[1] 中国科学院广州地球化学研究所

[2] 塔里木石油勘探开发指挥部研究中心

来源：

中国科学(D辑:地球科学) | 1997年 / 05期

关键词：

生物降解; 沥青质脱附烃; 古油气组分;

D O I：

暂无

中图分类号：

P539 [各类地层学];

学科分类号：

摘要：

通过对塔里木盆地志留系含油层两个岩芯样品(一个沥青砂,一个含油砂岩)沥青质吸附烃的脱附、提取和分离,和对吸附烃饱和烃组分色谱-质谱分析,结果表明:尽管油气藏经历了严重的生物降解及之后360Ma漫长的地质演化过程,沥青质吸附的正构烷烃(最容易被生物降解消失的组分)仍保存完好.沥青质吸附烃脱附实验可以作为沥青质热解实验的一个替代、甚至比之更好的方法,用于恢复油气藏初始油气组分的地球化学特征,更好地确定油气藏的油源.

引用

页码：453 / 456

页数：4

共 11 条

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