地质学报2017,Vol.91Issue(9):2119-2130,12.
通化盆地下白垩统烃源岩石油地质特征及生烃潜力研究
Petroleum Geologic Features and Generation Potential of the Lower Cretaceous Hydrocarbon Source Rocks in the Tonghua Basin
摘要
Abstract
Tonghua Basin, as a fault basin overlying the Archean-Proterozoic metamorphic basement, is one of shale oil and gas prospect areas located in the eastern periphery of the Songliao Basin.Poor understanding of petroleum and gas resources status restricts the subsequent oil and gas exploration work.The well Tongdi 1 was drilled in order to reveal the occurrence states of low Cretaceous hydrocarbon source rocks and hydrocarbon generating potential of shale oil and gas.The core samples were systematic carried out,and the maturity test, type and abundance of organic matter were also completed.The experimental test results show that: the organic matter abundance of dark mudstones in low Cretaceous Hengtongshan Formation in the Tonghua basin is relative high and dominated by type Ⅰ ~ Ⅱ 1, locally with type Ⅲ, and vitrinite ranges from 0.972% to 1.127%, suggesting that it has entered a mature stage with a large number of hydrocarbon generating;The organic matter abundance of dark mudstone in the Xiahuapidianzi Formation is high, dominated by type Ⅰ , locally with type Ⅱ and type Ⅲ, and Vitrinite reflectance are from 0.986% to 1.399%, suggesting that it has entered a mature stage of a large number of hydrocarbon generating.Their geochemical features are similar to other shale gas in the world.关键词
烃源岩/地球化学/生烃潜力/页岩油气/下白垩统/通化盆地Key words
shale oil/hydrocarbon source rocks/hydrocarbon generation potential/geochemistry/Low Cretaceous/Tonghua basin引用本文复制引用
王丹丹,周新桂,李世臻,张文浩,刘卫彬,林燕华..通化盆地下白垩统烃源岩石油地质特征及生烃潜力研究[J].地质学报,2017,91(9):2119-2130,12.基金项目
本文为中国地质调查局项目(编号12120115001701和DD20160165)资助成果. (编号12120115001701和DD20160165)