天然气地球化学

塔里木盆地塔河油田原油中双金刚烷分布特征与油气运移

展开
  • 中国科学院地质与地球物理研究所兰州油气资源研究中心,甘肃 兰州 730000
段毅(1956-),男,甘肃平凉人,研究员,博士生导师,主要从事油气地球化学和有机地球化学研究.

收稿日期: 2007-08-24

  修回日期: 2007-08-29

  网络出版日期: 2007-10-10

基金资助

国家重点基础研究发展规划计划“973”项目(编号:2005CB422105);中国科学院资环局知识创新重要方向项目(编号:KZCX-SW-147)联合资助

Distribution of Double DiamantaneI Hydrocarbons in Crude Oils From Tahe Oilfield of Tarim Basin and Its Mplication For Oil and Gsa Migration

Expand
  • Lanzhou Research Center for Oil and Gas Resources,Institute of Geology and Geophysics, Chinese Academy of Sciences, Lanzhou 73000,China

Received date: 2007-08-24

  Revised date: 2007-08-29

  Online published: 2007-10-10

摘要

研究了塔里木盆地塔河油田原油中双金刚烷的分布特征,探讨了该油田油气的充注期次和运移方向,结果表明,原油中双金刚烷指标值反映了原油的成熟度,并且指示研究区4区和6区原油充注时间较早、9区原油充注时间较晚,其它油区原油充注时间介于上述二者之间;原油中双金刚烷指标值分布特征显示出塔河油田下奥陶统油气存在2个充注方向,一是由南向北,并且油气成熟度相对较低,可能主要代表了早期的油气运移,另一个是由东向西,原油成熟度相对较高,可能主要代表了晚期的油气运移。根据原油成熟度和运移方向特征,认为塔河油田的早期油气起源于满加尔坳陷,晚期油气起源于满加尔坳陷和草湖坳陷,主力烃源岩层为寒武—奥陶系。

本文引用格式

段毅,王传远,郑朝阳,吴保祥 . 塔里木盆地塔河油田原油中双金刚烷分布特征与油气运移[J]. 天然气地球科学, 2007 , 18(5) : 693 -696 . DOI: 10.11764/j.issn.1672-1926.2007.05.693

Abstract

The distribution characteristics of double diamantane hydrocarbons in crude oils from Tahe oilfield of Tarim Basin was studied, and the period and direction of oil and gas migration were discussed. Results show that indicator values of double diamantane hydrocarbons in crude oils reflect the crude oil maturity. These indicator values also indicate that an earlier time of oil and gas charged in area 4 and area 6 compared to area 9 in studied regions. In other areas, charging time of oil and gas are delayed to that in area 4 and area 6, but advanced in that in area 9. Distribution characteristics of double diamantane hydrocarbons in crude oils shows two charging direction of low Ordovician oil and  gas in Tahe oilfield, one is from south to north, another is from east to west. Oils and gases charged along the first path have a higher maturity, likely presenting an earlier period of oil and gas migration. However, these charged along the second path have a lower maturity, likely presenting a later period of oil and gas migration. According to the characteristics of maturity and charging direction of crude oils, the earlier oils and gases in Tahe oilfield were derived from Manjiaer depression, but the later from Manjiaer depression and Caohu depression. The major source rocks of oil and gas in Tahe oilfield are.

参考文献

 
[1] 李国政,王辉,丁勇塔河油田奥陶系碳酸盐岩油气藏石油地质条件[J].新疆石油地质,2002,23(6):493-495.
[2]顾忆,黄继文,邵志兵.塔河油田奥陶系油气地球化学特征与油气运移[J].石油实验地质,2003,25(6):746-750.
[3]Wingert W W. GC-MS analysis of diamondoid hydrocarbons in Smackover petroleum[J]. Fuel, 1992, 71:37-43.
[4]赵红,王占生.用MLD/GC/MS检测原油和烃源岩抽提物中金刚烷类化合物及其地质意义探索[J].质谱学报,1994,15(4):43-48.
[5]李景贵,崔明中,张谦.双金刚烷指标作为下古生界高、过成熟阶段碳酸盐岩成熟度衡量标尺的讨论[J].石油勘探与开发,1998,22(2):83-86.
[6]陈军红,付家谟,盛国英,等. 金刚烷化合物的结构特征及其地球化学意义[J]. 科学通报,1996,41(6):524-527.
[7]曾凡刚,程克明. 利用双金刚烷指标研究下古生界海相碳酸盐的热成熟度[J]. 地质地球化学,1998,26(3):16-20.
[8]郑伦举,曹建平,薛建华,等.原油及烃源岩成熟度的新指标——甲基双金刚烷指数[J].石油实验地质,1998,20(4): 411-416.
[9]顾忆.塔里木盆地北部塔河油田油气藏成藏机制[J].石油实验地质,2000,22(4):307-312.
[10]王敦则,黎玉战,俞仁连.塔里木盆地塔河油田下奥陶统油藏特征及成藏条件分析[J].石油实验地质,2003,25(2): 122-128.
[11]丁勇,晏银华,顾忆,等.塔里木盆地塔河油田成藏史与成藏机制[J].新疆石油地质,2001,22(6):478-480.

文章导航

/