天然气地球科学

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利用测井和地震信息识别和预测优质烃源岩——以渤海湾盆地饶阳凹陷沙一段为例

殷杰,王权   

  1. 1.中国石油大学(北京) 地球科学学院,北京 102249;
    2.中国石油华北油田勘探开发研究院,河北 任丘 062552
  • 收稿日期:2017-05-15 修回日期:2017-08-12 出版日期:2017-11-10 发布日期:2017-11-10
  • 作者简介:殷杰(1987-),男,江苏扬州人,博士研究生,主要从事石油地质研究.E-mail:yayazai1115@163.com.
  • 基金资助:

    国家自然科学基金重大项目(编号:41690134);国家自然科学基金项目(编号:U1663210);中国石油华北油田公司科技项目(编号:HBYT-YJY-2014-JS)联合资助.

Using seismic and log information to identify and predict high-quality source rocks:A case study of the first member of Shahejie Formation in Raoyang Sag,Bohai Bay Basin

Yin Jie,Wang Quan   

  1. 1.College of Geosciences,China University of Petroleum,Beijing 102249,China;2.Exploration and Development Research Institute,PetroChina Huabei Oilfield Company,Renqiu 06255,China
  • Received:2017-05-15 Revised:2017-08-12 Online:2017-11-10 Published:2017-11-10

摘要:

通过对渤海湾盆地饶阳凹陷优质烃源岩研究,建立利用测井和地震信息进行优质烃源岩识别和预测的流程和工作方法。以沙一段烃源岩为例,应用测井信息和地震资料,通过建立测井响应特征、地震相和烃源岩地球化学特征之间的关系,在层序格架下预测优质烃源岩的发育分布。研究表明,饶阳凹陷沙一段优质烃源岩(TOC>2%)主要分布在沙一下亚段的湖侵体系域及高位体系域的下部,测井计算TOC曲线形态主要以箱型为主,中间夹杂少许锯齿状特征曲线,地震相主要呈低频率、强振幅、高连续性且具有平行—亚平行结构的反射特征;平面上优质烃源岩在凹陷中北部洼槽集中发育,最大厚度为马西洼槽的西63井,达到138m,不同构造区域优质烃源岩分布特征差异较大,具有较强的非均质性。
 

关键词: 饶阳凹陷, 沙一段, 优质烃源岩, 测井响应, 地震相, 发育分布

Abstract:

The workflow has been developed to identify and predict high-quality source rocks by the research of high-quality source rocks in Raoyang Sag.In this paper,logging data and seismic data are applied to establish the relationship of logging response,seismic facies and geochemical characteristics of source rocks to predict the high-quality source rocks distribution characteristics of the first member of Shahejie Formation under the sequence framework.High-quality source rocks of the first member of Shahejie Formation with TOC over 2% mainly distribute in the lacustrine transgressive system tract and at the bottom of highstand system tract of the lower Sha-1 Submember.Features of seismic facies such as low frequency,continuation and strong reflection are identified.High-quality source rocks are mainly distributed in the north-central of the Raoyang Sag and maximum thickness is up to 138m in Well Xi63 in Maxi Subsag.High quality source rocks in different tectonic regions have exhibited the horizontal and vertical heterogeneities.

Key words: Raoyang Sag, The first member of Shahejie Formation, High-quality source rocks, Log response, Seismic facies, Distribution

中图分类号: 

  • TE13

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