摘要
塔里木不同类型原油的芳烃分布和组成有较大差异。陆相原油的萘系列、二苯并噻吩系列（１．４１％─３．０７％）较少；菲系列、联苯系列（平均值２０．４％）和二苯并呋喃系列较丰富；萘系列中有较高的１，２，５─三甲基萘和１，２，５，６─四甲基萘。海相原油中二苯并噻吩化合物含量高（７．７０％─３１．２４％）。这反映出两类原油成油母质的沉积环境和生源的差别。芳烃成熟度指标表明，这些原油相当的Ｒ０值在０．６％─１．ｌ％范围。在一定程度上原油芳烃成熟度指标受源岩岩性的影响。
There are significant differences in distribution and compositions of the aromatic hydrocarbons from various Tarim oils. The terrestrial oils have relatively low amount of naphthalene and dibenzothiophene (1.41%─3.07%) homologues, and abundant phenanthrene, biphenyl (with an average of 20.4%) and dibenzpfuran homologues, with predominance of l,2,5─trimethylnaphthalene and l,2,5,6─tetramethylnaphalene in naphthalene homologues. The marine oils are characterized by abundant dibenzothiophene compounds (7.7%─31.4%). These differences suggest that the two oil families have different depositional environment and original organic mattere source. According to aromatic maturity parameters, these oils have equivalent R.. values from 0.6% to 1.1%. The aromatic maturity indicators of the oils, to some extent, are affectted by the lithology of their source rocks.
出处
《地球化学》
CAS
CSCD
北大核心
1996年第1期10-18,共9页
Geochimica
基金
"八五"国家重点科技攻关项目
关键词
塔里木盆地
原油
芳烃
成熟度
地球化学
油矿床
Tarim Basin
oil
aromatic hydrocarbon
depositional environment
maturity
