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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  1. Abrahamsen, P.
    , 1993, Bayesian Kriging for Seismic Depth Conversion of a Multi-layer Reservoir, in Geostatistics Tróia ′92, ed. by SoaresA. (Kluwer Academic Publ., Dordrecht, 1993), pp. 385–398.
    [Google Scholar]
  2. Al-Chalabi, M.
    , 1997, Time-depth relationships for multilayer depth conversion, Geophysical Prospecting, 45, pp. 715–720.
    [Google Scholar]
  3. Wang, T., Chemali, R., Hart, E., Cairns, P.
    , 2007, Real-Time Formation Imaging, Dip, And Azimuth While Drilling From Compensated Deep Directional Resistivity, SPWLA 48th Annual Logging Symposium, 3–6 June, Austin, USA.
    [Google Scholar]
  4. Brooks, A., Wilson, H., Jamieson, A., McRobbie, D., Holehouse, S. G.
    , 2005, Quantification of Depth Accuracy, SPE Annual Technical Conf. and Exhibition, 9–12 October, Dallas, USA, SPE 95611-MS.
    [Google Scholar]
  5. Minasny, B., McBratney, A. B.
    , 2005, The Matérn function as a general model for soil variograms, Geoderma128 (3–4): 192–207.
    [Google Scholar]

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