石油与天然气地质 ›› 2001, Vol. 22 ›› Issue (3): 207-209.doi: 10.11743/ogg20010303

• 前沿探索 • 上一篇    下一篇

中国不同沉积环境的氮同位素特征

陈传平, 梅博文   

  1. 江汉石油学院, 湖北荆州434102
  • 收稿日期:2001-03-10 出版日期:2001-09-25 发布日期:2012-01-16
  • 基金项目:

    国家自然科学基金项目(49673181)资助

CHARACTERISTICS OF NITROGEN ISOTOPE IN DIFFERENT DEPOSITONAL ENVIRONMENTS IN CHINA

Chen Chuanping, Mei Bowen   

  1. Jianghan Petroleum Institute, Jingzhou, Hubei
  • Received:2001-03-10 Online:2001-09-25 Published:2012-01-16

PDF (PC)

953

被引次数

17

摘要：

中国不同沉积环境部分原油和干酪根的氮同位素实验分析结果表明,氮同位素与沉积环境有较好的对应关系:淡水环境原油的δ15N大致在0.%～0.6%之间;咸水和半咸水环境中形成的沉积有机质氮同位素比值最重,δ15N普遍在1%以上;而古生代海相碳酸盐岩中有机质及由此生成的原油的δ15N接近0或小于0.

关键词: 原油, 氮同位素, 硫酸消煮法, 沉积环境, 中国

Abstract:

The test results of nitrogen isotopic samples of several crude oils and kerogens in China's different depositional environments suggest that nitrogen isotope is related to depositional environment. The 15N of oils formed in fresh water environment is about 0.3%～0.6%;the 15N ratios of deposits in salt and brackish waters are the heaviest,15N is generally above 1%;whereas that in Paleozoic marine carbonate rock and the oil from it is below 0 or less than 0.

Key words: crude oil, nitrogen isotope, Kjeldahl method, depositional environment, China

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