DEVICE FOR MEASURING THE ZENITH ANGLE OF WELL DEVIATION Russian patent published in 2018 - IPC E21B47/02 G01C9/12 

FIELD: soil or rock drilling.

SUBSTANCE: invention relates to drilling wells and is designed to measure the zenith angle of well deviation. Device for measuring the zenith angle of well deviation has an unbalance, an angle sensor fixed on the axis, a collector, a pendulum frame mounted on the supports. Pendulum frame contains permanent magnet, field Hall sensor, power source, analog-to-digital converter, code converter to pulse frequency, frequency divider and contacts. Angle sensor has one pendulum provided with a permanent magnet whose magnetic field acts on the Hall sensor rigidly fixed in the frame-pendulum. Hall electrodes of the Hall sensor are connected to the input of the analog-to-digital converter whose output is connected to the input of the code converter to the pulse frequency, and its output is connected to the input of the frequency divider additionally introduced to the device, whose output through the collector is connected to the communication channel.

EFFECT: technical result is an increase in the reliability and accuracy of measuring the zenith angle of well deviation directly during drilling and transmitting the signal along the wireless electric channel of the bottom-hole with the wellhead.

1 cl, 1 dwg