石油与天然气地质 ›› 1996, Vol. 17 ›› Issue (4): 308-312.doi: 10.11743/ogg19960409

• 论文 • 上一篇    下一篇

塔里木盆地牙哈油气田沥青垫特征及其成因──分布产状与宏观组成特征

张敏, 张俊, 梅博文   

  1. 江汉石油学院分析测试研究中心, 湖北荆沙 434102
  • 收稿日期:1996-03-13 修回日期:1996-09-03 出版日期:1996-12-25 发布日期:2012-01-16

CHARACTERISTICS AND ORIGIN OF TAR MATS IN YAHA OIL-GAS FIELDS,TARIM BASIN:OCCURRENCE AND MARCROSCOPIC COMPOSITIONAL FEATURES

Zhang Min, Zhang Jun, Mei Bowen   

  1. Jianghan Petroleum Institute, Jingsha, Hubei
  • Received:1996-03-13 Revised:1996-09-03 Online:1996-12-25 Published:2012-01-16

PDF (PC)

754

被引次数

4

摘要：

利用薄层色谱-氢火焰检测技术(TLC-FID,简称薄层色谱)和岩石热解技术,在塔里木盆地牙哈油气田下第三系陆相油气藏中,发现并准确地鉴定出两层沥青垫。这些沥青垫储层岩石抽提物族组成中,沥青质的相对含量大于30%,而对应的油层中,其值不足20%,在油藏地球化学描述剖面中,沥青垫和油层之间存在着沥青质骤变之趋势,这是沥青垫判识的重要标志。

关键词: 沥青垫, 沥青质, 鉴别标志, 塔里木盆地

Abstract:

Two tar mats were firstly discovered and determined accurately in Paleogene nonmarineoil-gas pools in Yaha Oilfields,Tarim Basin, by thin layer chromatography-flame ionizationdetector (TLC-FID) and Rock Eval. The relative content of asphaltene in gross compositionof tar mat extracts is more than 30%,but the content in corresponding oil leg is less than20%. In the profile geochemical description of oil reservoirs, sudden changes in asphaltenecontents between the tar mats and oil layers could be seen. This is an important marker todetermine tar mats.