PROCEDURE AND DEVICE FOR CONTROL OVER AZIMUTH OF ANGLE OF DEFLECTOR INSTALLATION IN VERTICAL BOREHOLES OF WELLS Russian patent published in 2011 - IPC E21B47/24 

FIELD: oil and gas production.

SUBSTANCE: device consists of computer of azimuth of deflector installation angle, of electric engine of direct current, on shaft of which there is mounted sensor of angular speed with output connecting it with supply windings of electric engine and of sensor of shaft rotary angle relative to case of electric engine. Also, output of the shaft rotary angle sensor is connected to output of the azimuth computer. Azimuth of angle of deflector installation during drilling is determined as sum of two angles: angle of azimuth of installation of deflector measured by known methods in its fixed position and calculated by means of disclosed device current value of rotary angle of deflector relative to the first azimuth.

EFFECT: measurements at higher vibrations of downhole equipment without interruption of drilling and in wells cased with steel columns, thus reducing expenditures for drilling operations and upgrading their quality.

2 cl, 1 dwg