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天然气地球科学 ›› 2012, Vol. 23 ›› Issue (3): 430–437.doi: 10.11764/j.issn.1672-1926.2012.03.430

• 天然气地质学 • 上一篇    下一篇

利用测井资料精细评价冀中坳陷廊固凹陷烃源岩

 王宗礼, 李君, 罗强, 邵丽艳, 李向阳   

  1. 1.中国矿业大学(北京)，北京 100083；
    2.中国石油勘探开发研究院廊坊分院，河北 廊坊 065007；
    3.中国石油华北油田勘探开发研究院，河北 任丘 062552
  • 收稿日期:2011-12-27 修回日期:2012-02-12 出版日期:2012-06-10 发布日期:2012-06-10
  • 通讯作者: 王宗礼wangzongli69@petrochina.com.cn. E-mail:wangzongli69@petrochina.com.cn.
  • 作者简介:王宗礼(1971-)，男，陕西凤翔人，高级工程师，博士后，主要从事石油地质综合研究.E-mail:wangzongli69@petrochina.com.cn.

Fine Evaluation of Source Rock with Logging Data in Langgu Sag of Jizhong Depression

 WANG  Zong-Li, LI  Jun, LUO  Qiang, SHAO  Li-Yan, LI  Xiang-Yang   

  1. 1.China University of Mining and Technology,Beijing 100083,China;2.Langfang Branch,Research
    Institute of Petroleum Exploration and Development,PetroChina,Langfang 065007,China;
    3.Exploration and Development Research Institute,PetroChina Huabei Oilfield Company,Renqiu 062552,China
  • Received:2011-12-27 Revised:2012-02-12 Online:2012-06-10 Published:2012-06-10

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摘要：

冀中坳陷廊固凹陷烃源岩埋藏深，钻井分析资料较少，利用常规地球化学方法难以系统分析优质烃源岩的平面、剖面分布特征。以现有的钻井取心样品及有机地球化学资料为基础，利用测井曲线叠合法建立了廊固凹陷测井资料计算总有机碳的经验公式，计算结果与实测值符合率可达80%~90%；据此选取了测井数据全、暗色泥岩发育并具有代表性的井，建立了廊固凹陷烃源岩分布评价标准，进而分析了廊固凹陷沙河街组沙三段与沙四段烃源岩的平面、剖面分布特征。研究表明，廊固凹陷主要发育巨厚的中等—低质量烃源岩，优质烃源岩主要发育于湖侵体系域；新发现固安优质烃源岩发育区，对下一步分层系开展精细勘探，寻找岩性油气藏具有重要的指导意义。

关键词: 廊固凹陷, 测井资料, 总有机碳, 烃源岩分布

Abstract:

It is difficult to understand horizontally and vertically the distribution of source rocks by conventional geochemical methods in the Langgu sag of Jizhong depression,since there is deep burial depth of source rock and few drilled holes.Based on drilled coring samples and organic geochemical data,the formula to calculate the total organic carbon (TOC) in the Langgu sag is established by using well logging curves,the coincidence rate between calculated and measured values is about 80% to 90%.The evaluated method of source rock distribution in the Langgu sag is established by selecting representative wells which have the whole well logging data and developed mudstone,and then we draw the horizontal and vertical distribution of source rocks in Es3 and Es4.Results show that the moderate-poor quality of source rocks with huge thickness is developed in the Langgu sag,and the high quality source rock is mainly developed in the lacustrine transgressive system field.The new discovery of high\|quality source rock in the Gu′an area is important for carrying out zonal fine exploration in  future and finding lithologic oil and gas reservoirs.

Key words: Langgu sag, Logging data, TOC, Source rock distribution.

中图分类号: 

  • TE122.1+14

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