On the Use of Multicomponent Streamer Recordings for Reconstruction of Pressure Wavefields in the Crossline Direction

Robertsson, Johan O. A.; Moore, Ian D.; Vassallo, Massimiliano; Özdemir, Ahmet Kemal; Manen, D.J. van; Özbek, Ali

doi:10.3997/2214-4609.20147740

Cited by 23 publications

(34 citation statements)

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“…Barr and Sanders (1989) showed the value of vertical motion measurements for deghosting. Robertsson et al (2008) andÖ zbek et al (2010) discussed the uses of a multimeasurement streamer (measuring horizontal and vertical particle motion and pressure). Robertsson et al (2008) andÖ zbek et al (2010) discussed the uses of a multimeasurement streamer (measuring horizontal and vertical particle motion and pressure).…”

Section: Marine Recording Systemsmentioning

confidence: 99%

“…The advent of streamers that sense crossline acceleration (or pressure gradient; Robertsson et al, 2008) may remove the need for this compromise since they provide an improved lateral sampling of shot gathers.…”

Section: Seismic Survey Configurations Geometriesmentioning

confidence: 99%

“…A radically different solution to the aliasing problem was introduced by Robertsson et al (2008) who realized that recordings of the 3D particle velocity vector in addition to the pressure relax the Nyquist sampling criterion by a factor of two or more. The basic principle follows from the equation of motion that states that the spatial gradient of pressure data, ∇p, is proportional to the acceleration of particle motion, ü:…”

Section: Receiver-side Techniquesmentioning

confidence: 99%

“…Robertsson et al (2008) showed that recording the horizontal components of particle acceleration in addition to the pressure results in a special form of Linden's multichannel sampling theorem (Linden, 1959): Intuitively, the spatial gradient of the pressure wavefield will be useful for understanding the structure of the wavefield away from the recording location.…”

Section: Receiver-side Techniquesmentioning

confidence: 99%

“…It is useful to compare this against the 'sinc interpolation formula' for pressure data only in eqn [11]. Based on the work by Robertsson et al (2008), Amundsen et al (2010) explored the benefits of interpolation of seabed node data where higher-order gradients of pressure data can also be measured, further constraining the interpolation problem and allowing for sparse sampling of the recorded wavefield. This difference in the two sinc interpolation formulas is fundamental and reflects the fact that the Nyquist sampling criterion has increased by a factor of 2 in eqn [13].…”

Section: Receiver-side Techniquesmentioning

confidence: 99%

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Tools and Techniques: Marine Seismic Methods

Robertsson

Laws²,

Kragh³

2015

Treatise on Geophysics

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Section: Marine Recording Systemsmentioning

confidence: 99%

Section: Seismic Survey Configurations Geometriesmentioning

confidence: 99%

Section: Receiver-side Techniquesmentioning

confidence: 99%

Section: Receiver-side Techniquesmentioning

confidence: 99%

Section: Receiver-side Techniquesmentioning

confidence: 99%

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Tools and Techniques: Marine Seismic Methods

Robertsson

Laws²,

Kragh³

2015

Treatise on Geophysics

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Reconstruction of signals from highly aliased multichannel samples by Generalized Matching Pursuit

Vassallo

Özbek

Kamil

et al. 2014

2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)

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This paper considers the problem of reconstructing a bandlimited signal from severely aliased multichannel samples. Multichannel sampling in this context means that the samples are available after the signal has been filtered by various linear operators. We propose the method of Generalized Matching Pursuit to solve the reconstruction problem. We illustrate the potential of the method using synthetic data that could be acquired using multimeasurement towed-streamer seismic data acquisition technology. A remarkable observation is that high-fidelity reconstruction is possible even when the data are uniformly and coarsely sampled, with the order of aliasing significantly exceeding the number of channels.

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Fidelity and repeatability of wave fields reconstructed from multicomponent streamer data

Eggenberger

Christie

Vassallo

et al. 2014

Geophysical Prospecting

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A B S T R A C TWave field reconstruction -the estimation of a three-dimensional (3D) wave field representing upgoing, downgoing or the combined total pressure at an arbitrary point within a marine streamer array -is enabled by simultaneous measurements of the crossline and vertical components of particle acceleration in addition to pressure in a multicomponent marine streamer. We examine a repeated sail line of North Sea data acquired by a prototype multicomponent towed-streamer array for both wave field reconstruction fidelity (or accuracy) and reconstruction repeatability. Data from six cables, finely sampled in-line but spaced at 75 m crossline, are reconstructed and placed on a rectangular data grid uniformly spaced at 6.25 m in-line and crossline. Benchmarks are generated using recorded pressure data and compared with wave fields reconstructed from pressure alone, and from combinations of pressure, crossline acceleration and vertical acceleration. We find that reconstruction using pressure and both crossline and vertical acceleration has excellent fidelity, recapturing highly aliased diffractions that are lost by interpolation of pressure-only data. We model wave field reconstruction error as a linear function of distance from the nearest physical sensor and find, for this data set with some mismatched shot positions, that the reconstructed wave field error sensitivity to sensor mispositioning is one-third that of the recorded wave field sensitivity. Multicomponent reconstruction is also more repeatable, outperforming single-component reconstruction in which wave field mismatch correlates with geometry mismatch. We find that adequate repeatability may mask poor reconstruction fidelity and that aliased reconstructions will repeat if the survey geometry repeats. Although the multicomponent 3D data have only 500 m in-line aperture, limiting the attenuation of non-repeating multiples, the level of repeatability achieved is extremely encouraging compared to full-aperture, pressureonly, time-lapse data sets at an equivalent stage of processing.

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On the Use of Multicomponent Streamer Recordings for Reconstruction of Pressure Wavefields in the Crossline Direction

Cited by 23 publications

References 0 publications

Tools and Techniques: Marine Seismic Methods

Tools and Techniques: Marine Seismic Methods

Reconstruction of signals from highly aliased multichannel samples by Generalized Matching Pursuit

Fidelity and repeatability of wave fields reconstructed from multicomponent streamer data

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