Abstract:

Thermal hydrous pyrolysis on 28 terrestrial source rock samples of the Jurassic,Cretaceous and Tertiary periods from 10 basins in China was made,including lacustrine shale sample containing kerogen type Ⅰ,type Ⅱ₁,type Ⅱ₂,and type Ⅲ,shales samples from coal-bearing system containing kerogen type Ⅱ₂ and type Ⅲ,coal samples with kerogen type Ⅱ₁,type Ⅱ₂ and type Ⅲ.The hydrocarbon-generation ratios of above kinds of source rocks were obtained from the pyrolysis.The diagrams of hydrocarbon-generation ratio of terrestrial source rock of different organic types and lithologies were also made.These diagrams were widely used in the modeling of hydrocarbon generation during the resource assessment implemented by the PetroChina Company Limited.

Key words: terrestrial basin, hydrocarbon source rocks, basin modeling, hydrocarbon-generation ratio diagram, oil and gas resource assessment, oil and gas generation, pyrolysis experiment

摘要：

利用密闭容器加水热模拟实验方法,对中国陆相盆地不同类型烃源岩进行了热模拟实验.模拟实验所用样品取自中国10个陆相盆地,包括侏罗系、白垩系和下第三系的湖相泥岩、煤系泥岩和煤3大类烃源岩.其中湖相泥岩烃源岩的有机质类型包括Ⅰ型、Ⅱ₁型、Ⅱ₂型和Ⅲ型,煤系泥岩烃源岩的有机质类型包括Ⅱ₂型和Ⅲ型,煤烃源岩的有机质类型包括Ⅱ₁型、Ⅱ₂型和Ⅲ型.根据模拟实验结果,编制了上述各类烃源岩的液态烃产率图版.

关键词: 陆相盆地, 烃源岩, 盆地模拟, 烃产率图版, 资源评价, 油气生成, 热模拟试验