摘要
邦戈尔盆地勘探程度低,对其主要烃源岩层位特征的认识不能满足勘探的需要。利用中部凹陷探井烃源岩样品的饱和烃色谱-质谱分析资料,对K组烃源岩的饱和烃生物标志物特征进行了系统分析,结果表明,中部凹陷K组烃源岩沉积于半咸水-淡水、弱氧化-弱还原的湖相沉积环境,沉积有机质为湖相混合型有机质。3个烃源岩样品饱和烃生物标志物组成特征的差异性表明,不同区域、不同层段的沉积环境和物源由于构造运动的影响还是有一定的差别。
Because of low level of oil and gas exploration,the research on the characteristics of the main resource rock can'tneeds of exploration in Bongor Basin.The saturated GC-MS data of the source rock are used in exploratory well of central Sag,the geochemical characteristics of the saturated Source Rock of K Formation are researched.The results shows that the mudstone of K Formation is deposited in fresh water-weak salt water and in weak oxidation-weak reducting lacustrine facies sedimentary environment.The organic type is mainly typeⅡ.The distribution differences of the saturates biomarkers among the 3 resource rock samples indicate that the sedimentary environment and material sources have little difference between the different subordinate layers and different structural positions as the result of the tectonic movement.
出处
《长江大学学报(自科版)(中旬)》
CAS
2013年第1期47-50,6,共4页
Journal of Yangtze University(Nature Science Edition)