Dispersion analysis of passive surface-wave noise generated during hydraulic-fracturing operations

Journal of Applied Geophysics
By: , and 

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Abstract

Surface-wave dispersion analysis is useful for estimating near-surface shear-wave velocity models, designing receiver arrays, and suppressing surface waves. Here, we analyze whether passive seismic noise generated during hydraulic-fracturing operations can be used to extract surface-wave dispersion characteristics. Applying seismic interferometry to noise measurements, we extract surface waves by cross-correlating several minutes of passive records; this approach is distinct from previous studies that used hours or days of passive records for cross-correlation. For comparison, we also perform dispersion analysis for an active-source array that has some receivers in common with the passive array. The active and passive data show good agreement in the dispersive character of the fundamental-mode surface-waves. For the higher mode surface waves, however, active and passive data resolve the dispersive properties at different frequency ranges. To demonstrate an application of dispersion analysis, we invert the observed surface-wave dispersion characteristics to determine the near-surface, one-dimensional shear-wave velocity.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Dispersion analysis of passive surface-wave noise generated during hydraulic-fracturing operations
Series title Journal of Applied Geophysics
DOI 10.1016/j.jappgeo.2014.09.008
Volume 111
Year Published 2014
Language English
Publisher Elsevier
Contributing office(s) Central Energy Resources Science Center
Description 6 p.
First page 129
Last page 134
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