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    含复杂倒转的地层层序统一修正与连接方法

    花卫华 郭丹阳 刘修国 朱玉华 张文 宿紫莹

    花卫华, 郭丹阳, 刘修国, 朱玉华, 张文, 宿紫莹, 2023. 含复杂倒转的地层层序统一修正与连接方法. 地球科学, 48(4): 1532-1542. doi: 10.3799/dqkx.2022.201
    引用本文: 花卫华, 郭丹阳, 刘修国, 朱玉华, 张文, 宿紫莹, 2023. 含复杂倒转的地层层序统一修正与连接方法. 地球科学, 48(4): 1532-1542. doi: 10.3799/dqkx.2022.201
    Hua Weihua, Guo Danyang, Liu Xiuguo, ZhuYuhua, Zhang Wen, Su Ziying, 2023. Unified Correction and Connection Method of Stratigraphic Sequence with Complex Inversion. Earth Science, 48(4): 1532-1542. doi: 10.3799/dqkx.2022.201
    Citation: Hua Weihua, Guo Danyang, Liu Xiuguo, ZhuYuhua, Zhang Wen, Su Ziying, 2023. Unified Correction and Connection Method of Stratigraphic Sequence with Complex Inversion. Earth Science, 48(4): 1532-1542. doi: 10.3799/dqkx.2022.201

    含复杂倒转的地层层序统一修正与连接方法

    doi: 10.3799/dqkx.2022.201
    基金项目: 

    国家重点研发计划课题 2019YFC0605102

    国家自然科学基金项目 41972307

    详细信息
      作者简介:

      花卫华(1977-),副教授,博士,主要从事多约束下复杂地质模型快速构建与定量分析研究.ORCID:0000-0002-2255-7411. E-mail:huaweihua@cug.edu.cn

      通讯作者:

      郭丹阳,E-mail:706489906@qq.com

    • 中图分类号: P628

    Unified Correction and Connection Method of Stratigraphic Sequence with Complex Inversion

    • 摘要: 在三维地质模型构建过程中,由于复杂地质构造运动形成的地层倒转、褶皱、节理等现象,传统的地层连接方法对相邻钻孔的地层对应考虑不足,从而导致三维模型地层连接不合理.针对该问题,提出一种含复杂倒转的地层层序统一修正与连接方法,引入逻辑钻孔递归统一地层层序思想,通过地层底板高程插值依据倒转地层的判别规则计算零厚度层的插入位置,统一钻孔的地层序列及修正标准地层层序,对钻孔中倒转、缺失、重复问题进行建模前的处理.通过讨论地层缺失、倒转、重复等复杂地层构造情况和实验验证,研究结果表明该方法能够充分解决零厚度层插入位置的二义性和倒转地层判定的二义性问题.该算法能够有效解决复杂地层倒转现象,为三维地质建模中地层连接提供依据.

       

    • 图  1  候选地层及构建地层示意图

      Fig.  1.  Schematic diagram of candidate strata and constructed strata

      图  2  计算中心点坐标及深度取值范围

      Fig.  2.  Calculate center point coordinates and depth range

      图  3  预处理候选地层

      Fig.  3.  Pretreated formation candidate

      图  4  判定逻辑钻孔倒转地层的数学判别规则示例

      Fig.  4.  Example of mathematical discriminant rule to determine the inversion formation of logic borehole

      图  5  标准地层层序修正过程

      Fig.  5.  Standard stratigraphic sequence correction process

      图  6  地层缺失情况讨论

      Fig.  6.  Discussion of stratigraphic absence

      图  7  地层倒转情况讨论

      Fig.  7.  Discussion of stratigraphic inversion

      图  8  地层重复情况讨论

      Fig.  8.  Discussion of stratigraphic repetition

      图  9  三维地质建模及切割展示

      Fig.  9.  3D geological modeling and cutting display

      图  10  含地层倒转的剖面图连接展示及对比实验

      Fig.  10.  Displaying and comparison test of section drawing with stratum inversion

      表  1  各钻孔候选地层

      Table  1.   Candidate formations for drilling

      $ {Z}_{1} $ $ {Z}_{2} $ $ {Z}_{3} $
      $ {S}_{k} $ $ \mathrm{B} $ $ \mathrm{B} $ $ \mathrm{C} $
      下载: 导出CSV

      表  2  钻孔$ {Z}_{1} $及$ {Z}_{2} $的中心点坐标及深度取值范围

      Table  2.   Center point coordinates and depth range of boreholes $ {Z}_{1} $ and $ {Z}_{2} $

      $ {Z}_{1} $ $ {Z}_{2} $
      候选地层 $ {S}_{1}=B $ $ {S}_{2}=B $
      中心点坐标 $ C{S}_{1B}({X}_{1B},{Y}_{1B}) $ $ C{S}_{2B}({X}_{2B},{Y}_{2B}) $
      深度取值范围 $ [{{S}_{1B}}_{\mathrm{m}\mathrm{i}\mathrm{n}},{{S}_{1B}}_{\mathrm{m}\mathrm{a}\mathrm{x}} $] $ [{{S}_{2B}}_{\mathrm{m}\mathrm{i}\mathrm{n}},{{S}_{2B}}_{\mathrm{m}\mathrm{a}\mathrm{x}} $]
      并集范围 $ [{{S}_{1B}}_{\mathrm{m}\mathrm{i}\mathrm{n}},{{S}_{1B}}_{\mathrm{m}\mathrm{a}\mathrm{x}} $]U$ [{{S}_{2B}}_{\mathrm{m}\mathrm{i}\mathrm{n}},{{S}_{2B}}_{\mathrm{m}\mathrm{a}\mathrm{x}} $]
      下载: 导出CSV
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    • 收稿日期:  2022-04-09
    • 刊出日期:  2023-04-25

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