Combined Depth Migration and Constrained Inversion of Low Frequency effectromagnetic Data

摘要：

In order to migrate effectromagnetic data from a low frequency controlled source, 3D effectromagnetic Green functions should be used since the near-field effects may be large. Imaging principles of the correlation type do not have sufficient depth sensitivity to be used in a one-pass migration step. To increase the depth sensitivity, a non-local operator is introduced in the imaging condition. This operator accounts for the lateral propagation of the EM field in the high resistivity reservoir. The non-local operator depends on two parameters related to the resistivity and thickness of an assumed resistivity anomaly. We propose to estimate these parameters from a limited set of forward modeling operations.

作者: Rune Mittet Frank Maa(o) Odd M. Aakervik Svein Ellingsrud

作者单位: Electromagnetic Geoservices AS, Trondheim, Norway

会议类型: 国际会议

会议名称: Progress in Electromagnetics Research Symposium 2007(2007年电磁学研究新进展学术研讨会)(PIERS 2007)

会议地点: 北京

会议语种:英文

页码: 1786-1788

在线出版日期: 2007-03-26（万方平台首次上网日期，不代表论文的发表时间）