Base level cycle,Heterogeneity,Comprehensive index,Mouth bar sand body,Wangguantun Oilfield,"/> 基于层次分析与模糊数学的河口坝非均质性定量表征——以王官屯油田官195断块为例

天然气地球科学

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基于层次分析与模糊数学的河口坝非均质性定量表征——以王官屯油田官195断块为例

王喜鑫,侯加根,刘钰铭,窦鲁星,孙建,龚勋   

  1. 1.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;
    2.中国石油大学(北京)地球科学学院,北京 102249;
    3.中国石油大港油田公司,河北 沧州 061000
  • 收稿日期:2017-05-02 修回日期:2017-10-18 出版日期:2017-12-10 发布日期:2017-12-10
  • 通讯作者: 侯加根(1963-),男,安徽无为人,教授,博士生导师,博士,主要从事开发地质学研究. E-mail:jghou63@hotmail.com
  • 作者简介:王喜鑫(1986-),男,黑龙江佳木斯人,博士研究生,主要从事开发地质学研究.E-mail:wangxixin86@hotmail.com.
  • 基金资助:

    国家科技重大专项“断陷湖盆三角洲单砂体构型表征技术研究”(编号:2016ZX05010001);国家重点基础研究发展计划(973)项目 (编号:2015CB250901)联合资助.

Quantitative characterization of vertical heterogeneity of mouth bar based on the analytic hierarchy process and the fuzzy mathematics:A case study of Guan195 fault block of Wangguantun Oilfield

Wang Xi-xin,Hou Jia-gen,Liu Yu-ming,Dou Lu-xing,Sun Jian,Gong Xun   

  1. 1.State Key Laboratory of Petroleum Resource and Prospecting,Beijing 102249,China;
    2.College of Geoscience,China University of Petroleum (Beijing),Beijing 102249,China;
    3.Dagang Oilfield Company,CNPC,Cangzhou 061000,China
  • Received:2017-05-02 Revised:2017-10-18 Online:2017-12-10 Published:2017-12-10

摘要:

为探究基准面旋回对河口坝砂体宏观非均质性的控制机理,采用综合指数定量表征储层的非均质性,以王官屯油田孔一段河口坝砂体为例,运用基准面旋回沉积动力学原理,研究基准面旋回对砂体宏观非均质性的控制作用。结果表明:随超短期基准面下降,河口坝砂体非均质综合指数从0.7降低至0.5,非均质性减弱;在短期基准面下降过程中,早期沉积砂体的综合指数均值为0.62,晚期沉积的河口坝砂体综合指数均值为0.51,晚期河口坝砂体非均质性较弱;随着中期基准面的下降,多期复合河口坝砂

关键词: 基准面旋回, 非均质性, 综合指数, 河口坝砂体, 王官屯油田

Abstract:

To discuss the influence of base-level cycle on macroscopic reservoir heterogeneity of mouth bar sandbodies,the composite index is used to characterize reservoir heterogeneity.Taking the mouth bar sandbodies in Ek1 formation of Wangguantun Oilfield as an example,the main controlling factors of macroscopic heterogeneity of mouth bar sandbodies were studied.Results show as the falling of the ultra short-term base-level,the composite index decreased from 0.7 to about 0.5,that means the heterogeneity gradually weakens.In the short-term base level decline process,the average value of composite index of the early-stage mouth bar sand body is 0.62,and that of late-stage is 0.51,the heterogeneity is weaker.In the falling process of middle-term base level cycle changes,the composite index of multi stage mouth bar sandbodies overall decreases,that is as the falling of the long-term base level,the heterogeneity of multi stage mouth bar sandbody overall weakens.The heterogeneity of the mouth bar sandbodies in the late period of super short cycle and short cycle are weaker,the sandbodies are also the favorable targets in the process of oil field exploitation.
 

Key words: Base level cycle')">

中图分类号: 

  • TE31

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