Preserving horizontality using topography corrected laterally constrained inversion

A.V. Christiansen, E. Auken, H. Andersen, K. Sørensen

Publikation: Bidrag til bog/rapport/konferenceproceedingsKonferenceartikel i proceedingspeer review

Abstrakt

Geophysical dataset from areas with substantial topography cause problems to many inversion routines. Commonly, the cells or layers of the model follow the topography which then favors layers boundaries of the inverted model that are topography-parallel. In many cases the geological layering is not connected to the overall topography, e.g. an erosional environment over a horizontal sub-stratum. Inverting data from such areas are penalized if the topography is not taken into account when dealing with the constraints We present a simple way of correcting the constraints entering the roughness matrix of the inversion problem so that topography is neutralized and horizontal layering is favored. Synthetic modeling confirms the superiority of the topography neutralization over traditional depth referenced inversion. Field examples will be shown in the talk.

OriginalsprogEngelsk
TitelNear Surface 2007 - 13th European Meeting of Environmental and Engineering Geophysics
ForlagEuropean Association of Geoscientists and Engineers, EAGE
ISBN (Trykt)9073781817, 9789073781818
DOI
StatusUdgivet - 2007
Udgivet eksterntJa
Begivenhed13th European Meeting of Environmental and Engineering Geophysics of the Near Surface Geoscience Division of EAGE, Near Surface 2007 - Istanbul, Tyrkiet
Varighed: 3 sep. 20075 sep. 2007

Publikationsserier

NavnNear Surface 2007 - 13th European Meeting of Environmental and Engineering Geophysics

Konference

Konference13th European Meeting of Environmental and Engineering Geophysics of the Near Surface Geoscience Division of EAGE, Near Surface 2007
Land/OmrådeTyrkiet
ByIstanbul
Periode3/09/075/09/07

Programområde

  • Programområde 2: Vandressourcer

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