Optimization of galvanic TEM-system geometry to decrease induced polarization effect on transient electromagnetic data
Behavior of a transient electromagnetic field for the galvanic measuring system (transmitter and receiver are arranged in a horizontal electric line) is considered in the work. The choice of such a measuring system was preceded by modeling of areal measurements of all components of both electrical and magnetic fields generated in a horizontally-layered polarizable medium. Based on investigations performed earlier, the method for configuration of galvanic TEM-system is proposed for discrimination of polarization and induction components of TEM characteristic of a layered polarizable medium. It has been found by means of mathematical modeling that there exist such positions of the receiving line for which the IP effect is essentially reduced. The results of mathematical modeling have been supported by field experiments.
induced polarization (IP) transient electromagnetic method (TEM) mathematical modeling
Alexander N Shein Eugene Yu Antonov
Trofimuk Institute of Petroleum Geology and Geophysics SB RAS, Novosibirsk, Russia
国际会议
The 19th International Workshop on Electromagnetic Induction in the Earth(第十九届国际地球电磁感应学术研讨会)
北京
英文
19-23
2008-10-23（万方平台首次上网日期，不代表论文的发表时间）