142 citations · 188 across the 6 of their papers we have counts for
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physics.geo-ph2019★ 41 cited
NMO-velocity surfaces and Dix-type formulae in anisotropic heterogeneous media
Vladimir Grechka, Ilya Tsvankin
Reflection moveout of pure modes recorded on conventional-length spreads is described by a normal-moveout (NMO) velocity that depends on the orientation of the common-midpoint (CMP…
physics.geo-ph2019★ 3 cited
Inversion of walkaway VSP data in the presence of lateral velocity heterogeneity
Vladimir Grechka, Ilya Tsvankin, Pedro Contreras
Multi-azimuth walkaway vertical seismic profiling (VSP) is an established technique for the estimation of in situ slowness surfaces and inferring anisotropy parameters. Normally, t…