新疆石油地质

新疆石油地质 ›› 2005, Vol. 26 ›› Issue (3): 231-233.

• 油气勘探 •    下一篇

裂谷盆地烃源岩中的火成岩及其活动模式——以东营凹陷为例

金强1, 翟庆龙2, 万从礼3   

  1. 1.石油大学,山东 东营 257061;
    2.中国石化 胜利油田有限公司,山东 东营 257000;
    3.中国石油 长庆油田分公司 勘探开发研究院,西安 710015
  • 收稿日期:2004-11-01 出版日期:2005-06-01 发布日期:2020-11-23
  • 作者简介:金强(1956-),男,江苏南京人,教授,博士生导师,油气地质,(Tel)0546-8391043(E-mail)jinyibo@hdpu.edu.cn.
  • 基金资助:
    国家自然科学基金资助项目(40272061)

Igneous Rock and Its Active Mode in Source Rocks of Rift Basin一An example of Dongying sag

JIN Qiang1, ZHAI Qing-long2, WAN Cong-li3   

  1. 1. University of Petroleum, Dongying, Shandong 257061, China;
    2. Shengli Oifield Company Ltd, Sinopec, Dongying, Shandong 257000, China;
    3. Research Institute of Exploration and Development, Changqing Oilfield Company, PetroChina, Xi'an, Shaanxi 710015, China
  • Received:2004-11-01 Online:2005-06-01 Published:2020-11-23

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摘要： 许多裂谷 盆地的主力烃源岩中分布有基性火山岩和侵入岩。综合运用东营凹陷沙三段火成岩成分、结构、构造、蚀变特征和K-Ar同位素等分析资料,结合研究区的构造地质特征,确定了火成岩成因类型以及它们与围岩的相互作用。以滨南和纯西地区为例,建立了烃源岩沉积环境中水下喷溢、烃源岩埋藏过程中浅层侵入的两种火成活动模式。探讨了两种火山活动形式对烃源岩形成、生烃演化和排烃的有益作用。

关键词: 裂谷盆地, 烃源岩, 火成岩, 火山作用模式, 东营凹陷

Abstract: Basic volcanic and intrusive rocks are normally distributed in major source rocks in many rift basins. The analytical data such as volcanic composition, texture, structure and alteration features as well as K-Ar isotope data from member-3 of Shahejie formation in Dongying sag are used, combined with the structural geology characteristics in studied area, to determine the volcanic genesis type and its effect on neighboring rocks. Taking Binnan basalts and Chunxi gabbros as example, the underwater effusion model for the basalts in source rock sedimentary environment and the intrusion model for the gabbros in the shallow-buried source rocks are developed. The helpful effects of these two models on source rock 's formation, hydrocarbon generation and expulsion are discussed.

Key words: rift basin, source rock, igneous rock, volcanic activity mode, Dongying sag

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