Print Email Facebook Twitter Seismic interferometry using multidimensional deconvolution and crosscorrelation for crosswell seismic reflection data without borehole sources Title Seismic interferometry using multidimensional deconvolution and crosscorrelation for crosswell seismic reflection data without borehole sources Author Minato, S. Matsuoka, T. Tsuji, T. Draganov, D.S. Hunziker, J.W. Wapenaar, C.P.A. Faculty Civil Engineering and Geosciences Department Geoscience & Engineering Date 2011-01-11 Abstract Crosswell reflection method is a high-resolution seismic imaging method that uses recordings between boreholes. The need for downhole sources is a restrictive factor in its application, for example, to time-lapse surveys. An alternative is to use surface sources in combination with seismic interferometry. Seismic interferometry (SI) could retrieve the reflection response at one of the boreholes as if from a source inside the other borehole. We investigate the applicability of SI for the retrieval of the reflection response between two boreholes using numerically modeled field data. We compare two SI approaches — crosscorrelation (CC) and multidimensional deconvolution (MDD). SI by MDD is less sensitive to underillumination from the source distribution, but requires inversion of the recordings at one of the receiver arrays from all the available sources. We find that the inversion problem is ill-posed, and propose to stabilize it using singular-value decomposition. The results show that the reflections from deep boundaries are retrieved very well using both the CC and MDD methods. Furthermore, the MDD results exhibit more realistic amplitudes than those from the CC method for downgoing reflections from shallow boundaries. We find that the results retrieved from the application of both methods to field data agree well with crosswell seismic-reflection data using borehole sources and with the logged P-wave velocity. Subject geophysical techniquesinterferometryseismic wavesseismology To reference this document use: http://resolver.tudelft.nl/uuid:c4772e2c-caae-4123-b4af-c462f23f3489 DOI https://doi.org/10.1190/1.3511357 Publisher Society of Exploration Geophysicists ISSN 0016-8033 Source Geophysics, 76 (1), 2011 Part of collection Institutional Repository Document type journal article Rights (c) 2011 Society of Exploration Geophysicists Files PDF Draganov_2011.pdf 8.35 MB Close viewer /islandora/object/uuid:c4772e2c-caae-4123-b4af-c462f23f3489/datastream/OBJ/view