摘要
以1-己烯和1-壬烯为内标物质，采用低沸点溶剂密封抽提色谱分析技术，对东营有效烃源岩的轻烃进行了定量分析，在准确获取C1～C15组分质量分数的同时又能得到有重要信，息的轻烃参数。分析表明岩石中的轻烃与可溶有机质（轻烃＋沥青“A”）的质量分数比值平均可达14．59％，并随演化程度的增强而增大；链烷烃和环烷烃质量分数比值与成熟度有很好的线性关系，当链烷烃与环垸烃质量分数比值等于1～2时为低熟阶段，当链烷烃与环烷烃质量分数比值等于2—6时为成熟阶段；证实了2，4-二甲基戊垸与2，3-二甲基戊烷质量分数比值的对数是温度的函数，利用相应的计算公式可获取源岩经历的最高埋藏温度。
The quantitative analysis of light hydrocarbon of source rocks in Dongying Depression is carried out by using low-boiling solvent air-proof extractive chromatography with 1-hexene and 1-nonene as internal standard. The absolute contents of C1--C15 are obtained accurately with the important light hydrocarbon fingerprint parameters. The results show that the average ratio of light hydrocarbon/ soluble organic matter （light hydrocarbon＋bitumen A） is 14.59% , increasing with maturity of source rocks. The ratio of paraffin to eyeloalkane has good line relationship with maturity, with the ratio of 1--2 at lower maturity stage and 2-6 at maturity stage. It is confirmed that the ratio of 2, 4-dimethylpentane to 2, 3-dimethylpentane is a function of temperature, and the maximum temperatures of source rocks undergone are obtained by the corresponding counting formula.
出处
《地质科技情报》
CAS
CSCD
北大核心
2008年第5期87-91,共5页
Geological Science and Technology Information
基金
中国石油化工股份有限公司项目"石油有机地化技术方法与应用"(P00039)
关键词
烃源岩
轻烃定量分析
成熟度
东营凹陷
source rock
quantitative analysis of light hydrocarbon
maturity
Dongying Depression
