石油与天然气地质 ›› 2003, Vol. 24 ›› Issue (2): 130-135.doi: 10.11743/ogg20030206

• 油气地质 • 上一篇    下一篇

东濮凹陷白庙构造油气源与成藏史

冯建辉1,2, 谈玉明1,2, 罗小平2,3, 王伟栋2, 潘长春1, 盛国英1, 傅家谟1   

  1. 1. 中国科学院广州地球化学研究所, 广东广州, 510640;
    2. 中国石化中原油田分公司, 河南濮阳, 457001;
    3. 成都理工大学石油系, 四川成都, 610059
  • 收稿日期:2003-02-25 出版日期:2003-06-25 发布日期:2012-01-16
  • 基金项目:

    国家自然科学基金(批准号:40173022);中原油田勘探开发研究院联合资助项目

HYDROCARBON ORIGIN AND RESERVOIRING HISTORY OF BAIMIAO FIELD IN DONGPU DEPRESSION

Feng Jianhui1,2, Tan Yuming1,2, Luo Xiaoping2,3, Wang Weidong2, Pan Changchun1, Sheng Guoying1, Fu Jiamo 1   

  1. 1. Guangzhou Institute of Geochemistry, China Academy of Sciences, Guangzhou, Guangdong;
    2. Zhongyuan Oilfield Company, SINOPEC, Puyang, Henan;
    3. Dep. of Petroleum, Chengdu University of Technology, Chengdu, Sichuan
  • Received:2003-02-25 Online:2003-06-25 Published:2012-01-16

PDF (PC)

726

被引次数

21

摘要：

白庙构造是东濮凹陷南部地区的一个含油环、凝析油的富气构造。生物标志物研究表明该构造不同部位的原油来源于不同的烃源岩。构造低部位(底部和翼部)的原油来源于沙河街组三段2亚段。这类原油奥利烷、γ-蜡烷、C30重排藿烷和C29Ts等生物标志物含量相对较高,Ts/Tm比值和重排甾烷/规则甾烷比值高,以及甾烷C29ββ/(αα+ββ)和20S/(R+S)指标高。构造高部位的原油则来源于沙河街组三段3,4亚段甚至沙河街组四段,生物标志物组成特征与低部位的原油正好相反,具有早期生烃的特征,甾烷异构化指标C29ββ/(αα+ββ)和20S/(R+S)比值低。

关键词: 东濮凹陷, 油源对比, 成藏史, 生物标志物

Abstract:

Baimiao field,located in the southern part of Dongpu depression, is mainly a condensate gas field,with oil ring at the bottom.The study of biomarkers indicates that the oil in different parts of the structures might be derived from various source rocks.The crude oil in deeper positon (bottom and flank) has been originated from the 2nd submember source rock of 3rd member,Shahejie Fm (Es32),and that in the higher part of the structure top has been originated from the Es33, Es34 and even Es4 source rocks.The former, in comparison to the latter, is characterized by relatively abundant oleanane,gammacerane,C30 diahopane and C29Ts,high values of Ts/Tm and diasterane/regular steranes ratios, and high C29ββ/(αα+ββ)and 20S/(R+S) indexes of C29 steranes. The low values of C29ββ/(αα+ββ)and 20S/(R+S)of C29 steranes indicate the source rocks of Es33 and Es34 submembers might generate hydrocarbons at early maturation stage.

Key words: Dongpu depression, oil source correlation, reservoiring history, biomarker

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