Key words: geomagnetic field, orientation, variations, rate-gyro system, gyro instruments, trimming, accelerometer, modeling, azimuth, inclination angle, magnetometer, vector of magnetic field.
One of the critical aspects of drilling oil and gas wells is to obtain accurate and timely information about the complex parameters of curvature wells. Error playback azimuth angles in units of spatial orientation in metrological control inklinometriceskoj equipment, more other corners are prone to influences of external factors. The least studied of the factors of influence are variations of the geomagnetic field. Research and identify errors and recommendations for minimization.
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