摘要
本文对不同干酪根类型的烃源岩进行热压模拟实验，收集各温阶的轻烃；详细研究了不同类型的源岩各温阶Ｃ７以前链烷烃、芳烃和环烷烃的变化规律；根据轻烃各组分在演化中的变化特征，重新考察了常用于判别成熟度的轻烃指标适用范围，及在各类源岩中存在的差异。
This paper discusses the result of thermal simulation on five different types of hydrocarbon source rock collected from Jiyang depression. The result shows that the paraffin alkane contains more messages of maturity. Especially, mono-/dimethylbranched paraffin has better linear correlation with evolution before Ro<2. 0. But, aromatic hydrocarbon and cycloalkane have more complex relation with evolution than paraffin alkane. Change of various components is by stage. However, main evolutive tendency of aromatic hydrocarbons and cycloalkane decreases gradually with increase of maturity. According to the change characteristics of various components of light hydrocarbons, the author investigates a fresh suitable range of maturation indicator and shows its difference in various types of source rock.
出处
《石油勘探与开发》
EI
CAS
CSCD
北大核心
1996年第3期24-29,共6页
Petroleum Exploration and Development
关键词
热模拟
轻烃
成分
变化
烃源岩
Thermal simulation, Light hydrocarbon, Composition, Change, Feature
