Physics – Geophysics
Scientific paper
Aug 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006georl..3316301d&link_type=abstract
Geophysical Research Letters, Volume 33, Issue 16, CiteID L16301
Physics
Geophysics
9
Exploration Geophysics: Downhole Methods, Exploration Geophysics: Instruments And Techniques
Scientific paper
Seismoelectric signals have been measured as a function of depth in a borehole penetrating glaciofluvial sands, silts, and glacial till using a broadband surface seismic source, and a downhole electrode array. Transient electric field pulses, with amplitudes of 1 to 4 μV/m accompanied the arrival of seismic P-waves at the electrodes but no simultaneous interfacial signals were observed above the noise floor of approximately 0.2 μV/m. The co-seismic effect was strongest in a sand and gravel layer where its amplitude is consistent with the predictions of a simplified theoretical model. Normalization of the amplitude logs by measurements of seismic particle velocity and electrical conductivity enhanced their sensitivity to changes in lithology and porosity. The results of this experiment suggest that co-seismic seismoelectric effects show potential as a porosity/permeability logging tool in the borehole environment.
Butler Karl E.
Dupuis J. C.
No associations
LandOfFree
Vertical seismoelectric profiling in a borehole penetrating glaciofluvial sediments does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Vertical seismoelectric profiling in a borehole penetrating glaciofluvial sediments, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vertical seismoelectric profiling in a borehole penetrating glaciofluvial sediments will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1780722