Results of a monitoring pilot with a permanent buried multicomponent seismic array at Ketzin
conference paper
To monitor the migration of the injected CO2 in the Ketzin project (Germany) a permanently buried multi-component seismic array has been installed in August 2009. Since then the array has been continuously recording passive seismic data. Additionally an active seismic survey resulting in a 230 m long 2D seismic line roughly passing over the monitoring well Ktzi 202/2007 has been acquired in November 2009. This relatively small set-up is meant as a pre-screening study to demonstrate the added value of the buried sensors before installing a larger 3D array. A first analysis of the active seismic data shows, that the use of an array of buried receivers results in (time-lapse) seismic data that offer a superior S/N ratio suppressing both ambient noise and surface related coherent noise. This setup is expected to lead to an increased repeatability. This paper describes the experimental set-up and first results of the acquired baseline data using the buried sensors. © 2011 Published by Elsevier Ltd.
Topics
CO2 storageDemonstration projectSeismic monitoring3D arraysActive seismicAdded valuesAmbient noiseBaseline dataCO storageCoherent noiseDemonstration projectExperimental setupGermanyMonitoring wellsMulticomponentsS/N ratioSeismic arraysSeismic datasSeismic linesSeismic monitoringGlobal warmingGreenhouse gasesSeismic responseSensorsSeismic waves
TNO Identifier
429728
ISSN
18766102
Source title
10th International Conference on Greenhouse Gas Control Technologies, 19 September 2010 through 23 September 2010, Amsterdam. Conference code: 84600
Pages
3588-3595
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