Simulation of SH-TE seismoelectric logging

cui zhiwen; wang kexie

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Simulation of SH-TE seismoelectric logging

cui zhiwen * #,wang kexie

school of physics Jilin Univ

*Correspondence author

#Submitted by

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Funding: 教育部博士点基金（No.20040183045）

Opened online:29 October 2007

Accepted by: none

Citation: cui zhiwen ,wang kexie .Simulation of SH-TE seismoelectric logging[OL]. [29 October 2007] http://en.paper.edu.cn/en_releasepaper/content/16005

The seismoelectric field excited by purely torsional loading applied directly to the borehole wall is considered. A brief formulation and some computed waveforms show the advantage of using SH-TE seismoelectric waves logging to measure shear velocity in a fluid-saturated porous formation. By assuming the acoustic field is not influenced by its induced electromagnetic field due to seismoelectric effect, the coupling governing equations for electromagnetic field are reduced to Maxwell equations with a propagation current source. It shows this simplification is valid and the borehole seismoelectric conversion efficient is mainly dependent on the electrokinetic coupling coefficient. The receivers to detect the conversion electromagnetic field and obtain shear velocity can be set in the borehole fluid in SH-TE seismoelectric waves log.

Keywords:seismoelectric, shear horizontal wave, transverse electric filed, logging.

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