摘要
脱羟基维生素E是强还原性沉积环境的产物,共三个同系物,五个异构体。在未熟至低熟阶段的原油及生油岩中含量较丰富,随成熟度增高,其含量降低,这是由于结构的热不稳定性所致。其与菲系列化合物的比值可以作为未熟—低熟阶段的成熟度参数,能很好地反映沉积有机质的热演化规律;运用该成熟度参数能够区分未熟原油与低熟原油。另外,不同的沉积环境具有不同的脱羟基维生素E的分布,母源有机质的输入对其也有很大影响。
Dehydroxy- Vitamine E is a product under highly reductive environment and 3 homologous products with 5 isomers are discovered so far. Because of its thermal instability, they are relatively abundant in the immature to low maturity crude oils and source rocks, and their content decreases with the degree of maturation. The ratio of Dehydroxy-Vitamine E to phenanthrenes can be taken as a parameter indicating the degree of maturation at immature to low-maturity stage, so that the regularity of evolution can be well reflected; and this can be used to distinguish the immature crude from the low maturity ones. Moreover, different depositional environment may result in different distribution of the Dehydroxy-Vitamine E and the input of the organic matters in the source rocks will have a significant effect on it also.
出处
《石油勘探与开发》
SCIE
EI
CAS
CSCD
北大核心
1990年第2期22-28,21,共8页
Petroleum Exploration and Development
