天然气地球科学 ›› 2012, Vol. 23 ›› Issue (2): 335–339.doi: 10.11764/j.issn.1672-1926.2012.02.335

• 天然气地球化学 • 上一篇    下一篇

苏北盆地高邮凹陷泰州组瓦6井油源对比

王永建,王延斌,高莎莎,郭慧,李霞   

  1. 1.华北科技学院安全工程学院,河北 三河 065201;
    2.中国矿业大学(北京)煤炭资源与安全开采国家重点实验室, 北京 100083
  • 收稿日期:2011-10-27 修回日期:2011-11-30 出版日期:2012-04-10 发布日期:2012-04-10
  • 通讯作者: 王永建wyj19801226@163.com. E-mail:wyj19801226@163.com.
  • 作者简介:王永建(1981-),男,安徽寿县人,讲师,博士,主要从事煤、油气地质研究. E-mail:wyj19801226@163.com.
  • 基金资助:

    国家自然基金项目(编号:41072188);中央高校基本科研业务费(编号:2011A02)联合资助.

Oil-source Correlation of Wa 6 Well Taizhou Formation in Gaoyou Sag,Subei Basin

WANG Yong-jian,WANG Yan-bin,GAO Sha-sha,GUO Hui,LI Xia   

  1. 1.Safety Engineering College North China Institute of Science and Technology, Sanhe 065201, China;
    2.State Key Laboratory of Coal Resources and Mine Safety,China University of Mining and Technology, Beijing 100083, China
  • Received:2011-10-27 Revised:2011-11-30 Online:2012-04-10 Published:2012-04-10

摘要:

高邮凹陷发现的油藏原油来自泰二段烃源岩的较少,仅瓦6井的原油可能来自泰二段烃源岩。通过对泰二段烃源岩,尤其对马5井,与瓦6井泰一段原油的地球化学特征进行对比分析,发现瓦6井原油Pr/Ph<1Pr/nC1718,C27,C28, C29呈倒三角形,即C28最低,C29最高,与泰二段烃源岩特征相似;另外,瓦6井原油的饱和烃色谱、萜烷及甾烷图谱等与泰二段烃源岩也呈现相同特征,但与阜宁组有明显区别。因此,分析认为瓦6井原油来自泰二段烃源岩,这一发现能为高邮凹陷泰州组油气提供新的勘探方向,具有一定的指导意义。

关键词: 高邮凹陷, 烃源岩, 油源对比, 泰二段, 生物标志化合物

Abstract:

The Tai 2 Member source rock does little contribution to the discovered oil reservoirs in the Gaoyou sag,only crude oil in the Wa 6 well has proved to be sourced from the Tai 2 Member source rock.By comparing with geochemistry of source rocks in the Tai 2 Member and crude oils in the Tai 1 Member collected from the wells of Ma 5 and Wa 6,the geochemical feature of crude oil in the Wa 6 well is similar with the Tai 2 Member,with Pr/Ph<1,Pr/nC1718, inverse triangle shape of C27, C28 and C29 steranes,the lowest abundance of C28-sterane is,and the highest abundance of C29-sterane.Thetotal ion GC distribution of saturated hydrocarbon and GC-MS shapes of terpane and sterane in the crude oil of Ma 6 well are well correlated with the Tai 2Member source rock but obviously different from the Funing Formation source rock.Therefore,the result that the crude oil was sourced from the Tai 2 Member source rock will provides a new direction of oil and gas exploration for the Taizhou Formation in the Gaoyou sag.

Key words: Gaoyou sag, Source rocks, Oil-source correlation, Tai 2 Member, Biomarkers.

中图分类号: 

  • TE122.1+13

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