FIELD: geophysics for performing well measurements when determining spatial position of well borehole.
SUBSTANCE: measurements are performed using several identical ferro-probes, consisting of a triad of magnetometers. Ferro-probes are mounted at known distance and distanced from each other along axis of body. For compensating magnetic interference generated by ferromagnetic elements of face apparatus and drilling pipes column, composition of measuring module of inclinometer additionally includes two groups of ferro-probes. Distance between them exceeds greatest dimension of group construction. Magnetic azimuth of well is calculated. On basis of indications of magnetometers, values of magnetic interference are determined, inputted for correcting indications of magnetometers.
EFFECT: increased precision, inserts of non-magnetic pipes between inclination meters and face apparatus on one side and drilling pipes column - on other side excluded from structural composition.
3 cl, 2 dwg
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