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Errors in Positioning of Borehole Measurements and How They Influence Seismic Inversion
  • Iris Fernandes,
  • Klaus Mosegaard
Iris Fernandes
Niels Bohr Institute, Niels Bohr Institute

Corresponding Author:iris@nbi.ku.dk

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Klaus Mosegaard
Niels Bohr Institute, University of Copenhagen, Niels Bohr Institute, University of Copenhagen
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Inversion of seismic data using information from horizontal wells is often is hampered by cumulative well- location errors. These errors can be significant and propagate to the well-log measurements in the borehole. To achieve a proper data integration and arrive at correct uncertainty estimates, we formulate the problem in a fully probabilistic framework and present a numerical approach for improving subsurface imaging using uncertain well-log data and their uncertain locations, as well as uncertain seismic data. The result is improved model error quantification in the seismic inversion process.