PROCEDURE FOR ORIENTATION OF MECHANISM IN WELL AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2011 - IPC E21B47/24 

FIELD: oil and gas production.

SUBSTANCE: procedure for orientation of mechanism in well consists in pumping down liquid through device and in its rotation around lengthwise axis. Also, a case of the device has an eccentric orifice on lower surface in a cavity of which there is positioned a lock element freely travelling under influence of gravity. When the lock element shuts off the eccentric orifice, pressure of liquid in the cavity of the device increases. Orientation of the mechanism is determined on base of record of pressure build-up.

EFFECT: simplified design of device for orientation of well mechanisms; reduced cost of operations, reduced time for mechanism installation.

4 cl, 3 dwg