西南石油大学学报(自然科学版)

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火山岩储层地震预测

朱超1,宫清顺1,黄革萍1,吴义平2   

  1. 1. 中国石油杭州地质研究院,浙江杭州310023
    2. 中国石油大学(北京)地球科学学院,北京昌平102249
  • 出版日期:2013-10-20 发布日期:2013-10-20
  • 基金资助:

    中国石油“十一五”基础研究课题“二连盆地新层系、新领域油气地质特征综合研究”(P08045)。

     

Application of Seismic Technology in Volcanic Reservoir Prediction

Zhu Chao1, Gong Qingshun1, Huang Geping1, Wu Yiping2   

  1. 1. PetroChina Hangzhou Research Institute of Geology,Hangzhou,Zhejiang 310023,China
    2. College of Geosciences,China University of Petroleum,Changping,Beijing 102249,China
  • Online:2013-10-20 Published:2013-10-20

摘要:

以地震属性及反演为代表的地震技术是进行储层预测的最为普遍且有效的技术,以二连盆地洪浩尔舒特凹陷
白垩系阿尔善组火山岩为例,通过井震标定,总结火山岩在常规地震剖面及水平时间切片上的反射特征,对火山岩进
行了识别,在此基础上,针对火山岩储层具有较强非均质性的特点以及常规地震反演对模型依赖性较大的缺陷,探讨
性地采用分频属性反演及基于神经网络的储层参数反演分别对该区火山岩储层分布进行了预测,将两种预测结果综
合分析,指出了该区较确切的火山岩有效储层分布区与非储层区,与实际钻井资料吻合较好,为下一步开展火山岩勘
探生产工作起到了一定的指导作用。该技术方法对于非均质性较强的特殊岩体的储层预测有一定的借鉴意义。

关键词: 火山岩储层, 分频属性反演, 储层参数反演, 洪浩尔舒特凹陷, 二连盆地

Abstract:

Seismic technology represented by seismic attribute and inversion is the universal and effective technology for
reservoir prediction. Taking for example volcanic rocks in Honghaoershute Sag of Erlian Basin,by well-seismic calibration,
we summarized reflection characters of volcanic rocks on the seismic section and horizontal time slice and then identified the
volcanic rock. As volcanic reservoir has strong heterogeneity and conventional seismic inversion is too dependent on module,
we tried to extrapolate the distributions of volcanic reservoir by applying AVF inversion and reservoir-parameter inversion based
on BP neural network. In the end,we analyzed the two inversion results and pointed out the exact effective reservoir zones and
non-reservoir zones,which accorded well with the real datum. We believe the findings can effectively guide the exploration
of volcanic rocks. This technology and method on reservoir prediction can be used for reference to especial rocks,which has
strong heterogeneity.

Key words: volcanic reservoir, AVF inversion, reservoir-parameter inversion, Honghaoershute Sag, Erlian Basin