| CPC G01V 3/36 (2013.01) [G01V 3/30 (2013.01)] | 20 Claims |
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1. A method of smoothing a resistivity log, comprising steps:
coupling an azimuthal resistivity tool into a drill string, the azimuthal resistivity tool configured to measure an azimuthal impedance at an azimuthal angle around a wellbore axis;
measuring a plurality of first azimuthal impedances at a respective plurality of azimuthal angles at a depth;
determining whether the drill string was in a drilling mode or a sliding mode while at the depth;
determining, if the drill string was in the drilling mode, a first co-axial component and a lateral component based in part on the plurality of first azimuthal impedances associated with the depth and storing the lateral component;
determining, if the drill string was in the sliding mode, a second co-axial component based in part on at least one of the plurality of first azimuthal impedances and a previously stored lateral component; and
steering a drill bit connected to the drill string based on one of the determined first co-axial component and the lateral component and the determined second co-axial component.
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