摘要
本文通过对茂名油页岩模拟实验裂解气轻烃的研究,发现裂解气中的轻烃和沉积物中的轻烃较为相似。随热演化程度的增加,C_1含量逐渐减少。相对于正构烷烃的含量,异构烷烃的含量逐渐减少。在较高的成熟度阶段,正构烷烃表现为nC_7>nC_6>nC_5≈nC_4。这代表了一种富氢母源形成轻烃的特征。此外,本文对iC_4/nC_4,iC_5/nC_5指标也进行了讨论。
In this paper, light hydrocarbons of pyrolysis gas are studied by laboratory simulation of Maoming oil shale. The study shows that the light hydrocarbons of pyrolysis gas are similar to the light hydrocarbons from subsurface sediments in constitution. With increasing thermal evolution level, the content of methane gradually increases and the content of isoalkanes decreases relative to the content of n-alkanes. In higher maturity, n-alkanes occur as nC_7>nC_6>nC_5≈nC_4. This represents characteristics of light hydrocarbons which are generated from rich-hydrogen source rocks. In addition, the indexes such as iC_4/nC_4, iC_5/nC_5 are discussed herein as well.
出处
《江汉石油学院学报》
CSCD
北大核心
1989年第4期7-11,共5页
Journal of Jianghan Petroleum Institute
关键词
油页岩
轻烃
热演化
裂解气
天然气
light hydrocarbons
oil shale
evolution
simulation
organic matter
kerogen
pyrolysis
Maoming area
