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
地球科学 ›› 2023, Vol. 48 ›› Issue (04) : 1532 -1542.
含复杂倒转的地层层序统一修正与连接方法
Unified Correction and Connection Method of Stratigraphic Sequence with Complex Inversion
,
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.
三维建模 / 递归统一地层层序 / 地层倒转 / 逻辑钻孔 / 数学模型
3D modeling / recursively unified stratigraphic sequence / stratigraphic inversion / logic drilling / mathematical models
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国家重点研发计划课题(2019YFC0605102)
国家自然科学基金项目(41972307)
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