辽河盆地西部凹陷源岩特征及低熟油分布规律研究

Research on Characteristic of Source Rock and Immature Oils Distribution in Western Depression, Liaohe Basin

未 -低成熟油的发现及其成因研究是近年来油气地球化学的重要进展之一 ,从源岩的基本特征入手 ,分析辽河盆地低熟油的生成能力 ,将原油划分为六类 :未熟 -低熟降解稠油、未熟未降解稠油、低熟降解稠油、低熟未降解稀油、正常稀油和成熟降解稠油 .研究表明 ,未 -低熟油的分布受深度。

The discovery and study of immature oils is one of the most important progresses in oil and gas geochemistry in recent years. The generation hydrocarbons have been studied based on source rock characters. The oil is divided into six types, namely immature to lower mature, bio degraded heavy oil, immature undegraded heavy oil, lower mature bio degraded heavy oil, lower mature oil, normal oil and mature bio degraded heavy oil. On the basis of above, it was researched about immature oils distribution character. It shows that the immature oils distribution is controlled by depth, structural belt of oil generating depression and fault conducting ability.