新疆石油地质 ›› 2005, Vol. 26 ›› Issue (4): 453-458.

• 讨论与争鸣 • 上一篇    下一篇

吐哈盆地“煤成油”问题再认识

苏传国, 朱建国, 孟旺才, 蒋兵, 王天鹏, 王文霞   

  1. 中国石油 吐哈油田分公司勘探开发研究院,新疆 哈密839009
  • 收稿日期:2005-02-22 出版日期:2005-08-01 发布日期:2020-11-23
  • 作者简介:苏传国(1970-),男,湖北宜城人,工程师,石油地质,(Tel)0902-2765419.

Re-Discussion of Coal-Formed Oil Mechanism in Turpan-Hami Basin

SU Chuan-guo, ZHU Jian-guo, M ENG Wang-cai, JIANG Bing, W ANG Tian-peng, WANG Wen-xia   

  1. Research Institute of Exploration and Development, Tuha Oilfield Company, PetroChina, Hami, Xinjiang 839009, China
  • Received:2005-02-22 Online:2005-08-01 Published:2020-11-23

摘要: 吐哈盆地被认为是典型的煤成油盆地。通过煤岩的富氢显微组成、模拟生烃特征、特殊的油气成藏规律及不同地区预测资源量与探明油气资源量之间的对比分析发现,吐哈盆地侏罗系煤岩并不具有大规模生、排液态烃并形成商业性油田的能力。结合其他地质、地球化学证据,认为台北凹陷中侏罗统油气并不是严格意义上的“煤成油”,而是深层湖相与煤系的“混源油”。

关键词: 吐哈盆地, 侏罗系, 煤成油, 机理

Abstract: Tupan-Hami (Tuha) basin is deemed to be a typical coal-formed oil basin. This paper presents the analysis of the hydrogen-enriched coal maceral, simulated hydrocarbon generating characteristic, special hydrocarbon accumulation pattern, and the correlation of predicted and proved resources in different areas. The results indicate that the Jurassic coal measure in Tuha basin does not possess large-scale hydrocarbon generating and expulsing capability for forming a commercial oilfield. According to the evidences in geology and geochemistry, it is considered that the crude oil from the Middle Jurassic in Taibei sag is strictly not "coal-formed oil", but "source-mixed oil" formed by deep lacustrine facies and coal measure source rocks.

Key words: Tuha basin, Jurassic, coal-formed oil, mechanism

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