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Sánchez-Pastor, Pilar (author), Obermann, Anne (author), Schimmel, Martin (author), Weemstra, C. (author), Verdel, Arie (author), Jousset, Philippe (author)
The Reykjanes Geothermal System (RGS) is a high-temperature geothermal system located on the Reykjanes peninsula, a transtensional plate-boundary zone located on the southwestern tip of Iceland. The area is characterized by high seismicity, recent volcanism, and high-temperature geothermal fields. We use seismic noise records from April 2014...
journal article 2019
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Almagro Vidal, C. (author), van der Neut, J.R. (author), Verdel, Arie (author), Hartstra, I.E. (author), Wapenaar, C.P.A. (author)
Passive seismic interferometry enables the estimation of the reflection response of the subsurface using passive receiver recordings at the surface from sources located deep in the Earth. Interferometric imaging makes use of this retrieved reflection response in order to study the subsurface. Successful interferometric imaging relies on the...
journal article 2018
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Weemstra, C. (author), Obermann, Anne (author), Verdel, Arie (author), Paap, B (author), Blanck, Hanna (author), Guðnason, Egill Árni (author), Hersir, Gylfi Páll (author), Jousset, Philippe (author), Sigurðsson, Ömar (author)
We report on the results obtained from a dense seismic deployment over a geothermal reservoir located on the tip of the Reykjanes peninsula, SW Iceland. The available seismic stations have continuously recorded the ambient-seismic wave field between April 2014 and August 2015. Using seismic interferometry (SI), seismic responses were generated...
abstract 2016
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Weemstra, C. (author), Obermann, Anne (author), Blanck, Hanna (author), Verdel, Arie (author), Paap, B (author), Guðnason, Egill Árni (author), Hersir, Gylfi Páll (author), Jousset, Philippe (author), Sigurðsson, Ömar (author)
We report on the results obtained from a dense seismic deployment over a geothermal reservoir. The reservoir has been producing continuously for almost a decade and is located on the tip of the Reykjanes peninsula, SW Iceland. The seismic stations on top of the reservoir have continuously recorded the ambient seismic wavefield between April 2014...
abstract 2016
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Jousset, Philippe (author), Blanck, Hanna (author), Franke, Steven (author), Metz, M. (author), Águstsson, K. (author), Verdel, Arie (author), Ryberg, T. (author), Hersir, Gylfi Páll (author), Weemstra, C. (author), Bruhn, D.F. (author), Flovenz, Olafur G (author)
We present tomographic results obtained around geothermal reservoirs using seismic data recorded both on-land Reykjanes, SW-Iceland and offshore along Reykjanes Ridge. We gathered records from a network of 83 seismic stations (including 21 Ocean Bottom Seismometers) deployed between April 2014 and August 2015. We obtain crustal velocity images...
conference paper 2016
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Verdel, Arie (author), Wedemeijer, Harry (author), Paap, B (author), Vandeweijer, Vincent (author), Weemstra, C. (author), Jousset, Philippe (author), Franke, Steven (author), Blanck, Hanna (author), Águstsson, K. (author), Hersir, Gylfi Páll (author)
We present results from the application of ambient noise seismic interferometry (ANSI) to data that were recorded continuously in 2014 and 2015 at Iceland’s peninsula Reykjanes. The objective of this study is the retrieval of reflected body waves (P-waves) that provide high-resolution velocity-versus-depth as well as subsurface structural...
conference paper 2016
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Boullenger, B. (author), Verdel, A. (author), Paap, B. (author), Draganov, D.S. (author)
Ambient-noise seismic interferometry (ANSI) applied to passive body-wave measurements retrieves an estimate of the reflection response as if from a source at a receiver position. Often, the limited compliance with theoretical assumptions causes erroneous absolute amplitudes of the retrieved physical reflections, and additional artefacts....
conference paper 2015
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Boullenger, B. (author), Verdel, A. (author), Paap, B. (author), Thorbecke, J.W. (author), Draganov, D.S. (author)
conference paper 2015
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Boullenger, B. (author), Verdel, A. (author), Paap, B. (author), Thorbecke, J.W. (author), Draganov, D.S. (author)
Seismic interferometry applied to ambient-noise measurements allows the retrieval of the seismic response between pairs of receivers. We studied ambient-noise seismic interferometry (ANSI) to retrieve time-lapse reflection responses from a reservoir during CO2 geologic sequestration, using the case of the experimental site of Ketzin, Germany. We...
journal article 2015
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Draganov, D.S. (author), Campman, X. (author), Thorbecke, J.W. (author), Verdel, A. (author), Wapenaar, C.P.A. (author)
The successful surface waves retrieval in solid?Earth seismology using long?time correlations and subsequent tomographic images of the crust have sparked interest in extraction of subsurface information from noise in the exploration seismology. Subsurface information in exploration seismology is usually derived from body?wave reflections >?1?Hz,...
journal article 2013
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Boullenger, B. (author), Verdel, A. (author), Thorbecke, J.W. (author), Draganov, D.S. (author)
conference paper 2013
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Arts, R.J. (author), Zhang, X. (author), Verdel, A.R. (author), Santonico, D. (author), Meekes, J.A.C. (author), Noorlandt, R.P. (author), Paap, B.F. (author), Vandeweijer, V.P. (author)
Since July 2008, CO2 is injected into a saline aquifer near the town of Ketzin in Germany. For monitoring the CO2- migration close to the injection well, TNO installed a fixed 2D seismic array of 120 meters length in 2009, with 3- component geophones at the surface, 4-component receivers at 50 meters depth and a central vertical array of 4-...
journal article 2013
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Gouedard, P. (author), Roux, P. (author), Campillo, M. (author), Verdel, A.R. (author), Yao, H. (author), Van der Hilst, R.D. (author)
We use seismic prospecting data on a 40 × 40 regular grid of sources and receivers deployed on a 1 km × 1 km area to assess the feasibility and advantages of velocity analysis of the shallow subsurface by means of surface-wave tomography with Green's functions estimated from crosscorrelation. In a first application we measure Rayleigh-wave...
journal article 2011
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Wapenaar, C.P.A. (author), Draganov, D.S. (author), Snieder, R. (author), Campman, X. (author), Verdel, A. (author)
Seismic interferometry involves the crosscorrelation of responses at different receivers to obtain the Green's function between these receivers. For the simple situation of an impulsive plane wave propagating along the x-axis, the crosscorrelation of the responses at two receivers along the x-axis gives the Green's function of the direct wave...
journal article 2010
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Draganov, D.S. (author), Campman, X. (author), Thorbecke, J.W. (author), Verdel, A. (author), Wapenaar, C.P.A. (author)
One application of seismic interferometry is to retrieve the impulse response (Green's function) from crosscorrelation of ambient seismic noise. Various researchers show results for retrieving the surface-wave part of the Green's function. However, reflection retrieval has proven more challenging. We crosscorrelate ambient seismic noise,...
journal article 2009
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Van der Burg, D. (author), Verdel, A. (author), Wapenaar, C.P.A. (author)
Trace inversion for reservoir parameters is affected by angle averaging of seismic data and wavelet distortion on the migration image. In an alternative approach to stochastic trace inversion, the data are inverted prestack before migration using 3D dynamic ray tracing. This choice makes it possible to interweave trace inversion with Kirchhoff...
journal article 2009
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Draganov, D.S. (author), Wapenaar, K. (author), Mulder, W. (author), Singer, J. (author), Verdel, A. (author)
The retrieval of the earth's reflection response from cross?correlations of seismic noise recordings can provide valuable information, which may otherwise not be available due to limited spatial distribution of seismic sources. We cross?correlated ten hours of seismic background?noise data acquired in a desert area. The cross?correlation results...
journal article 2007
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