CPC E21B 47/024 (2013.01) [E21B 7/04 (2013.01)] | 20 Claims |
1. A computer-implemented method comprising:
receiving a first orientation signal, wherein the first orientation signal comprises a magnetic field signal generated from measurements produced by a magnetometer disposed in a drilling tool chassis;
receiving a second orientation signal;
processing the magnetic field signal to generate a clean magnetic field signal; and
calculating a residual signal based on the clean magnetic field signal and the second orientation signal.
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