摘要
大地电磁法(MT)具有探测深度大、不受高阻屏蔽以及对低阻异常体敏感等优点,引起了众多学者对该方法的大量研究,尤其是正演数值模拟。该文借助Comsol Multiphysics有限元仿真软件,进行大地电磁二维正演研究,利用该软件构建所要研究的地电模型,将大地电磁正演计算公式转换成软件中某些特定的参数和变量,完成大地电磁TE、TM模式正演计算。在与ModEM软件进行正确性对比后,进一步采用Bositick法对正演数据进行了拟二维反演研究。
The magnetotelluric(MT)has the advantages of large detection depth,not shielded by high resistivity and sensitive to low resistivity anomalies.Many scholars do a lot of research on this method,especially forward numerical simulation.In this paper,the Comsol Multiphysics finite element simulation software is used to research the magnetotelluric two-dimensional forward.The software is used to construct the geoelectric model which will to be studied.The magnetotelluric forward calculation formula is converted into some specific parameters and variables in the software to finish the TE、TM mode forward calculation.After comparing with the correctness by ModEM software,this paper further uses the Bositick method to carry out the pseudo-two-dimensional inversion to the forward data.
作者
李付龙
李清坤
李文帝
何好
尚延杰
李维强
Li Fulong;Li Qingkun;Li Wendi;He Hao;Shang Yanjie;Li Weiqiang(Chengdu University of Technology)
出处
《勘察科学技术》
2019年第4期25-28,共4页
Site Investigation Science and Technology
基金
油气藏地质及开发工程国家重点实验室开放基金(PLC2001802)
