莺歌海盆地原油中微量元素分布特征及其地质意义

Characteristics and Significance of Trace Elements in Crude Oil of Yinggehai Basin

宗国宪 黄正吉

ZONG Guo-xian HUANG Zheng-ji

西安高等职业专科学校, 陕西 西安 710000; 中海石油研究中心 勘探研究院, 河北 高碑店 074010

Higher College for Professional Training, Xian 710000, China; Exploration Institute of CNOOC Research Center, Gaobeidian 074010, China

采用同步辐射X射线荧光分析技术,测定了莺歌海盆地海相原油和北部湾盆地陆相原油中的微量元素含量,结果是海相原油富集Cr、Mn、Fe元素,陆相原油Cr、Mn、Fe元素含量甚微,但却富集Cu元素。如此特征为判识原油的成因类型和源岩追踪提供了有意义的信息。

Have detected trace elements in marine crude oils of Yinggehai Basin and in Non-marine crude oils of Beibuwan Basin with Synchrotron Radiation X-Ray fluorescence analysis. Cr, Mn and Fe elements are rich in marine crude oils and Cr, Mn and Fe elements are poor and Cu element is rich in Non-marine crude oils. The characteristics can be used to discern the genetic of crude oil and to made tracks for the oil source.