摘要
在盆地勘探阶段,生烃凹陷的确定和生烃潜力的评价显得尤为重要。在对地化资料进行分析的基础上,从烃源岩地质特征和地化特征两方面,对辽河西部凹陷J311-J312井区沙一、二段烃源岩生烃潜力进行了综合评价。研究结果表明,研究区沙一段、沙二段烃源岩主要发育于深湖-半深湖相,烃源岩厚度大,有机质丰度高,类型好,但成熟度偏低,目前主要处于低成熟-成熟阶段,刚刚进入大量生烃的成熟阶段,具有一定生烃能力。
It is important to confirm the oil-generating sag and evaluate the oil-generating Potential during the stage of basin exploration.On the base of analyzing the geochemical information,the synthetical evaluation of oil-generating potential of Es1 and Es2 source rocks has been completed from the two sides of source rocks geologic characteristics and geochemical characteristics in Liaohe Xibu Depression.The result shows that the source rocks of Es1 and Es2 that develop in the deep lake and medium-shallow lake have certain oil--generating ability, with great thickness, hight abundance and good type, while the degree of ripeness is a bit lower, that is in the low maturation--maturation stage, or the maturation stage in which the oil formatted with great quantity.
出处
《内蒙古石油化工》
CAS
2009年第19期143-145,共3页
Inner Mongolia Petrochemical Industry
关键词
烃源岩
生烃潜力
地化特征
西部凹陷
Source Rocks
Oil-generating Potential
Geochemical Characteristics
Liaohe Xibu Depression
