THE NUMERICAL MODELING AND INVERSION
OF 3D BOREHOLESURFACE RESISTIVITY FINITE ELEMENT
LIU Shenfen1,LI Tiancheng2,MU Hongtao3
1. No. 5 Geological Party, Henan Bureau of Geological Survey for Nonferrous Metals, Zhengzhou450042, China; 2. China Geological Survey Center for Nonferrous Metals Resources, Beijing 100012, China; 3. Zhengzhou College of Mapping and Surveying, Zhengzhou450052, China
Relatively large exploration depth and good resolution at depth are usually required in oilgas and mineral resources exploration. The boreholesurface electrical resistivity tomography technique can satisfy the demand. A typical synthetic geological model was designed in this paper, which is based on the simulation of the finite element method by using Ansys FEM software. The response apparent resistivity of the model acts as the input of the inversion. According to the results obtained by the smoothconstrained least square inversion method, this paper describes characteristics and distribution of the anomalies. The results and the recognition obtained obviously have some practical values.
刘申芬, 李天成, 慕洪涛. 三维井地电阻率有限元数值模拟及反演[J]. 物探与化探, 2009, 33(1): 88-90.
LIU Shen-Fen, LI Tian-Cheng, MU Hong-Tao. THE NUMERICAL MODELING AND INVERSION
OF 3D BOREHOLESURFACE RESISTIVITY FINITE ELEMENT. Geophysical and Geochemical Exploration, 2009, 33(1): 88-90.