DEVICE FOR MEASURING DISTANCE AND DETERMINING DIRECTION BETWEEN TWO DRILLING WELLS (VARINATES), METHOD OF MEASURING DISTANCE AND DETERMINING DIRECTION BETWEEN DRILLING DISTANCES OF REDUNDANCES

摘要

1. A device for measuring the distance and determining the direction between two boreholes passing in a geological environment, including a solenoid assembly installed at a first selected point in a first borehole having a known vertical angle and a known direction at the first selected point, a borehole electric a circuit for supplying electric current to the solenoid assembly, which generates a characteristic magnetic field of a given magnitude of the solenoid, acting for a short period of time, a device for remotely supplying a start signal to the solenoid assembly, an electronic circuit in the solenoid assembly, configured to operate in active standby mode the start signal in such a way that when the start signal is received, it starts to pass through the solenoid an electric current of a given magnitude, a magnetic field sensor located at the second selected point in the second well and configured to measure three vector components of the characteristic magnetic field of the solenoid at the second point, an electronic circuit for determining the spatial coordinates of the magnetic field sensor at the second point of the second borehole, a processor for determining the distance and direction between the first and second points from the measured spatial coordinates of the sensor and the measured vector components of the magnetic field at the second point the second borehole and then according to a given value of the characteristic magnetic field of the solenoid. ! 2. The device according to claim 1, which contains a pipe sleeve, while the solenoid assembly has a beacon with a source