研究论文

东营凹陷沙四下亚段-孔店组储层流体包裹体特征及油气充注期次

  • 孟江辉 ,
  • 刘洛夫 ,
  • 高永进
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  • 1. 长江大学非常规油气湖北省协同创新中心, 武汉 430100;
    2. 中国石油大学(北京)油气资源与探测国家重点实验室, 北京 102249;
    3. 中石化胜利油田分公司地质研究院, 东营 257015
孟江辉,副教授,研究方向为石油地质,电子信箱:mjhyzu@163.com

收稿日期: 2014-06-16

  修回日期: 2014-08-01

  网络出版日期: 2014-11-27

基金资助

国家科技重大专项(2008ZX05051)

Fluid Inclusion Characteristics and Hydrocarbon Charging Stages of the Lower Section of 4th Member of Shahejie Formation and Kongdian Formation in the Dongying Depression

  • MENG Jianghui ,
  • LIU Luofu ,
  • GAO Yongjin
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  • 1. Hubei Cooperative Innovation Center of Unconventional Oil and Gas, Yangtze University, Wuhan 430100, China;
    2. State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China;
    3. Research Institute of Geological Science, Shengli Oilfield Company Limited, Dongying 257015, China

Received date: 2014-06-16

  Revised date: 2014-08-01

  Online published: 2014-11-27

摘要

东营凹陷深层的沙四下亚段-孔店组是该区油气勘探的接替层系,以沙四下亚段-孔店组储层流体包裹体为研究对象,通过包裹体显微荧光观察和均一化温度测试,结合埋藏史和热史模拟,分析了研究区油气充注特征。研究结果表明,东营凹陷南坡沙四下亚段-孔店组储层经历过1 期油气充注,发生于明化镇组沉积期至现今;而北坡经历过3 期油气充注,分别发生于沙三段沉积期、馆陶组沉积期和明化镇组沉积期至今;南坡沙四下亚段-孔店组油源来自于上覆的沙三下和沙四上亚段烃源岩,北坡比南坡埋深更大,且有沙四下亚段烃源岩的贡献;不同的地质背景、油气来源及生储配置关系,导致东营凹陷南、北坡沙四下亚段-孔店组油气充注期次的显著差异。

本文引用格式

孟江辉 , 刘洛夫 , 高永进 . 东营凹陷沙四下亚段-孔店组储层流体包裹体特征及油气充注期次[J]. 科技导报, 2014 , 32(32) : 54 -59 . DOI: 10.3981/j.issn.1000-7857.2014.32.009

Abstract

The lower section of the 4th member of the Shahejie formation and Kongdian formation (Es4x-Ek) in the deeper Dongying depression are supersedure strata of oil and gas exploration. Based on the observation of microscopic fluorescence and homogenization temperature test of fluid inclusions and in combination with the simulation of burial and thermal history, the hydrocarbon charging characteristics of Es4x-Ek reservoirs are analyzed. The result shows that Es4x-Ek reservoirs in the south slope of Dongying depression experienced one stage of hydrocarbon charging, which is from the Minghuazhen to the present day. However, the Es4x-Ek reservoirs in the north slope experienced three stages of hydrocarbon charging, which are the 3rd member of Shahejie period, Guantao period, and Minghuazhen to the present day. The burial depth of the north slope is deeper than that of the south slope. The oil source of Es4x-Ek reservoirs in the south slope is overlying Es3x and Es4x source rocks, whereas the oil source of the north slope contains Es4x source rock. The different geological backgrounds, oil sources, and source-reservoir combination patterns lead to the significant differences of hydrocarbon charging characteristics between the south and the north slopes.

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