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Ivan Vasconcelos
Researcher at Utrecht University
Publications - 136
Citations - 2316
Ivan Vasconcelos is an academic researcher from Utrecht University. The author has contributed to research in topics: Interferometry & Seismic interferometry. The author has an hindex of 22, co-authored 124 publications receiving 1989 citations. Previous affiliations of Ivan Vasconcelos include WesternGeco & Colorado School of Mines.
Papers
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Interferometry by deconvolution: Part 1 — Theory for acoustic waves and numerical examples
Ivan Vasconcelos,Roel Snieder +1 more
TL;DR: In this article, a physical interpretation of deconvolution interferometry based on scattering theory is presented, where the free-point or clamped-point boundary condition is circumvented by separating the reference waves from scattered wavefields.
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Extended imaging conditions for wave‐equation migration
TL;DR: In this article, the authors introduce extended common-image point (CIP) gathers constructed only as a function of the space and time-lag extensions at sparse and irregularly distributed points in the image.
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Interferometry by deconvolution: Part 2 — Theory for elastic waves and application to drill-bit seismic imaging
Ivan Vasconcelos,Roel Snieder +1 more
TL;DR: In this paper, deconvolution is used to recover the impulse response between two receivers without the need for an independent estimate of the source function, which is of most use to seismic-while-drilling (SWD) applications in which pilot records are absent or provide unreliable estimates of bit excitation.
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On Green’s function retrieval by iterative substitution of the coupled Marchenko equations
TL;DR: In this article, the authors propose an iterative substitution of the coupled Marchenko equations to retrieve the Green's functions from a source or receiver array at an acquisition surface to an arbitrary location in an acoustic medium.
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Target-oriented Marchenko imaging of a North Sea field
Matteo Ravasi,Ivan Vasconcelos,A. Kritski,Andrew Curtis,Carlos Alberto da Costa Filho,Giovanni Angelo Meles +5 more
TL;DR: In this article, a new method of wavefield extrapolation based on inverse scattering theory produces accurate estimates of these subsurface scattered wavefields, while still using relatively little information about the Earth's properties.