FIELD: wells, particularly devices to determine slope or direction of oil, gas, geothermal, iron ore and other wells included in directional well drilling systems.
SUBSTANCE: method involves measuring angular velocity by fiber-optic gyroscope and accelerometer installed on rotary panel so that the fiber-optic gyroscope and accelerometer may be installed in at least 8 positions; determining ideal sinusoid parameters, namely amplitudes and initial phases, from measured signals with the use of progressive approximation method; calculating azimuth and zenith angles from the ideal sinusoid parameters. During signal processing systematic error components of sensitive members are compensated.
EFFECT: improved operational capabilities, reduced mass, size and power inputs.
5 cl, 3 dwg
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