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Using Deep Directional Resistivity for Model Selection and Uncertainty Reduction in the Edvard Grieg Depth ConversionNormal access

Authors: O. Kolbjørnsen, P. Dahle, M.D. Bjerke, B.A. Bakke and K.R. Straith
Event name: Petroleum Geostatistics 2019
Session: Geostatistical Models I
Publication date: 02 September 2019
DOI: 10.3997/2214-4609.201902170
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 2.66Mb )
Price: € 20

We consider the problem of depth conversion at the Edvard Grieg field. Measurements of deep directional resistivity suggest that the top surface on Edvard Grieg is much smoother than what is indicated by the interpretation of seismic reflectors. We investigate this problem by tools of standard depth conversion, by integrating measurements from deep directional resistivity into the standard kriging equations. We propose a statistical model which is able to reveal whether we should introduce a smoothing term for the time interpretations to improve the mapping of the top surface.

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