Characterization of spatially varying surface waves in a land seismic survey

Ross, Warren S.; Lee, Sunwoong; Diallo, Mamadou S.; Johnson, Marvin L.; Martinez, Alex; Anderson, John E.; Shatilo, Andrew

doi:10.1190/1.3063874

Cited by 8 publications

(5 citation statements)

References 2 publications

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“…We discuss in this paper how different methods can be optimized and improved with large-scale 3D data and we present a workflow to: 1 obtain a high resolution spatial distribution of the surfacewave properties, in particular the velocity, 2 invert the surface-wave properties to a near-surface model, 3 remove the surface wave from data with a model-based filter. The analysis of the spatial variability of the surface-wave velocity in reflection seismic has also been discussed by Ross et al (2008). We propose here a surface-wave analysis method that exploits the rich sampling of the surface waves in 3D single sensor data to maximize the resolution and accuracy using a local adaptive transform to analyse linear events.…”

Section: Surface-wave Acquisition and Multiscale Analysis With Point-mentioning

confidence: 99%

“…The analysis of the spatial variability of the surface‐wave velocity in reflection seismic has also been discussed by Ross et al (). We propose here a surface‐wave analysis method that exploits the rich sampling of the surface waves in 3D single sensor data to maximize the resolution and accuracy using a local adaptive transform to analyse linear events.…”

Section: Introductionmentioning

confidence: 98%

See 1 more Smart Citation

Surface waves: use them then lose them. Surface‐wave analysis, inversion and attenuation in land reflection seismic surveying

Strobbia¹,

Andreas²,

Vermeer³

et al. 2011

Near Surface Geophysics

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While in other domains of applied geophysics the surface‐wave is considered a source of information for near‐surface characterization, in the seismic industry the so‐called ground roll has been traditionally regarded only as coherent noise to be filtered out as soon as possible. This difference of perspective is mainly due to the limitations of conventional land acquisition. The Rayleigh waves, which constitute a large part of the recorded energy, can be acquired properly, analysed and inverted to characterize the near‐surface with a surprisingly high resolution, even in large 3D surveys, with point receiver acquisition. Surface waves can play a new role: they contribute to a better near‐surface characterization for the perturbation correction and can be used for velocity modelling and geological modelling. Their proper identification enables alternative filtering strategies. Surface waves are not coherent noise but a signal that can be lifted from the seismic record and exploited in a variety of well‐established geophysical solutions. In this paper we discuss a workflow for the analysis, inversion and attenuation of surface waves with 3D land data, showing examples from a land 3D survey in Egypt.

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Section: Surface-wave Acquisition and Multiscale Analysis With Point-mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Surface waves: use them then lose them. Surface‐wave analysis, inversion and attenuation in land reflection seismic surveying

Strobbia¹,

Andreas²,

Vermeer³

et al. 2011

Near Surface Geophysics

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show abstract

“…Yet another method, known as the HV ratio, inverts for subsurface structure from the spectral ratio of the horizontal and vertical components of a Rayleigh or Scholte wave observed on a 3C receiver (Muyzert, 2007). The HV ratio, or ellipticity (Ross et al, 2008), senses the shallow structure immediately beneath the receiver.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, Bussat and Kugler (2009) showed that a similar technique can be applied at the reservoir scale in a marine setting. Our purpose is to investigate the ability of surface waves to provide useful information on shear statics, as previously discussed by Ross et al (2008), instead of being discarded as undesirable noise. We demonstrate how the presence of low frequency surface waves in land seismic data makes it possible to gauge strong variations in shear wave velocity in the shallow subsurface.…”

Section: Introductionmentioning

confidence: 99%

Imaging lateral heterogeneity at Coronation Field with surface waves

Haney

Douma²

2010

SEG Technical Program Expanded Abstracts 2010

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A longstanding problem in land seismic data processing is the presence of a complex near-surface. We investigate lateral heterogeneity at shallow depths (< 100 m) for a data set from the Coronation Field, Canada, by applying Rayleigh wave group velocity tomography. The 3D-3C data set contains good low frequency content and fundamental mode Rayleigh waves are observed over the frequency band from 3-13 Hz. Group velocity maps over a range of frequencies reveal strong variability in the near-surface. A 3D depth model resulting from this analysis can be used as an initial guess for more advanced imaging methods based on scattered surface waves.

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“…For a nominal frequency of 5 Hz and phase velocity of 500 m/s, this means that a surface wave of the Rayleigh or Love type only feels the upper 100 m of the subsurface. As a result, surface waves cannot be used for imaging deep reflectors; however, they can be used to estimate near-surface properties (Xia et al, 1999;Ross et al, 2008), in particular the shear-wave velocity. Knowledge of near-surface velocity structure in turn can be used to estimate shear-wave statics in reflection seismology.…”

mentioning

confidence: 99%

Rayleigh-wave tomography at Coronation Field, Canada: The topography effect

Haney

Douma²

2012

The Leading Edge

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Within reflection seismology, surface waves or ground roll, are often considered a form of unwanted source-generated noise. Unlike body waves, surface waves propagate exclusively in the lateral direction and are virtually insensitive to structure deeper than one wavelength. For a nominal frequency of 5 Hz and phase velocity of 500 m/s, this means that a surface wave of the Rayleigh or Love type only feels the upper 100 m of the subsurface. As a result, surface waves cannot be used for imaging deep reflectors; however, they can be used to estimate near-surface properties (Xia et al., 1999; Ross et al., 2008), in particular the shear-wave velocity. Knowledge of near-surface velocity structure in turn can be used to estimate shear-wave statics in reflection seismology. Estimating statics in the presence of laterally varying structure (i.e., obtaining the long-wavelength static component) can be challenging.

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Characterization of spatially varying surface waves in a land seismic survey

Cited by 8 publications

References 2 publications

Surface waves: use them then lose them. Surface‐wave analysis, inversion and attenuation in land reflection seismic surveying

Surface waves: use them then lose them. Surface‐wave analysis, inversion and attenuation in land reflection seismic surveying

Imaging lateral heterogeneity at Coronation Field with surface waves

Rayleigh-wave tomography at Coronation Field, Canada: The topography effect

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