METHOD FOR DIRECTING DEFLECTOR WHEN CONSTRUCTING ASSEMBLY OF LOWER PORTION OF DRILLING COLUMN WITH INCLINE MEASURING SYSTEM AND DEVICE FOR REALIZATION OF SAID METHOD Russian patent published in 2004 - IPC

FIELD: oil extractive industry.

SUBSTANCE: method includes emitting three laser beams toward the deflector, which are parallel to pit incline measuring device axis. First beam is directed in one radial plane with mark of direction of effect of deflector sensor of pit incline measuring system. Three beams fall upon standard marks of graduated template freely moving along surface of measuring panel mounted perpendicularly to axis of deflector in lower plane of drilling column. First beam is deflected from template plane by means of mirror mounted on the surface of measuring panel. Curvature of drilling column, characterized by angle between axes of deflector and deflector sensor, is determined on basis of angle between falling and reflected beams of first laser beam source. Displacement of starting angle of deflector is determined on basis of angular distance between first mark of graduated template, previously combined with point of beam fall from first position of measuring panel and template lying on the surface of measuring panel.

EFFECT: higher precision, lesser time needed for determining displacement of deflector angle, better geometry of assembly of lower portion of drilling column being assembled with pit incline measuring system.

3 cl, 6 dwg