赵悦;蔡进功;杨燕;雷天柱;

• 1:中国石油勘探开发研究院

• 2:同济大学海洋地质国家重点实验室

• 3:中国石油天然气集团公司冀东油田分公司

• 4:中国科学院油气资源研究重点实验室

摘要(Abstract)：

以东营凹陷沙三下亚段和沙四上亚段主力烃源岩为研究对象,采用有机溶剂抽提—HCl酸解连续处理实验方法,对泥质烃源岩黏粒级组分的游离态有机质和碳酸盐矿物结合态有机质进行地球化学表征。结果表明:游离态有机质可以提供沉积环境、热成熟度、有机质生源等地化信息,碳酸盐矿物结合态有机质能补充有机质生源信息;碳酸盐矿物结合态有机质能更好地保存烃类组分的轻质端,可以指示Botryococcus braunii生源的两环倍半萜类生物标志化合物仅在赋存态中检出。此外单质硫具有相对较高的丰度,相对封闭的矿物晶格赋存环境使有机质的原生地质信息更好地保留下来。对烃源岩中游离态有机质和矿物结合态有机质的综合分析,可以得到更为真实客观的地质推断结果。

关键词(KeyWords)：泥质烃源岩;有机质赋存态;游离态;碳酸盐矿物结合态;两环倍半萜;Botryococcus braunii;生源指示意义

Abstract:

Keywords:

基金项目(Foundation):国家自然科学基金项目(41372130)

作者(Author):赵悦;蔡进功;杨燕;雷天柱;

Email:

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