摘要
利用GC,GC-MS等地球化学分析技术,探讨了拉布达林盆地上库力组烃源岩沉积环境、母源特征及成熟度等特征。结果表明:研究区烃源岩有机质丰度较高,达到了中—好的烃源岩级别,有机质类型以Ⅱ1型为主;各个地区的烃源岩沉积环境、有机质来源及成熟度都有所不同,上乌尔根附近为强还原超咸化的深水环境,母质来源以水生藻类和浮游生物为主,有机质热演化处于大量生烃的成熟阶段;上库力附近烃源岩形成于弱氧化-弱还原的淡水-微咸水环境,具有混合母质来源的特征,有机质热演化处于低成熟阶段。
The depositional environment, biogenetic derivation and maturity of source rocks in Shangkuli formation in Labudalin Basin were discussed by using the geochemical analysis technique of GC and GC-MS. The results show that the abundance of organic matter of surce rock in the research area is rather high, and the major type of organic matter is type Ⅱ1. The depositional environment, maturity and biogenetic derivation of organic matter for source rocks are different in different area of the basin. The organic matter of source rocks near Shangwuergen formed in strong reduction environment with salt deep water, the source inputs mainly came from mixed-source of plankton and hydrobiontic algae, and the thermal evolution reached maturation stage. The organic matter of source rocks near Shangkuli formed in weak reduction to reduction environment with freshwater-light salt water, its hydrocarbon came from mixed-source of organics, and the thermal evolution reached low maturation stage.
出处
《中国石油大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2009年第3期27-33,38,共8页
Journal of China University of Petroleum(Edition of Natural Science)
基金
国家“973”重点基础研究发展计划项目(2006CB202300)
国家油气专项课题(XQ-2004-07)
