HYDROELECTRIC CONTROL SYSTEM OF COLUMN FOR DESCENT WITH BACKUP CONTROL SYSTEM OF SEQUENTIAL ACTIVATION WITH PRESSURE RELIEF INTO CAVITY OF WATER SEPARATION COLUMN Russian patent published in 2022 - IPC E21B33/35 E21B34/16 

FIELD: oil and gas industry.

SUBSTANCE: hydroelectric control system of a column for descent with a backup control system of sequential activation with pressure relief into a cavity of a water separation column is proposed, the column for descent is installed in underwater anti-discharge equipment. The system contains: an upper insulating valve; a bypass valve including a pressure compensation system, a cut-off branch pipe, an underwater test fountain valve including an emergency disconnection mechanism, an adapter of a tool for lowering and lifting a suspension of a pump and compressor pipe, installed in series with the formation of an operational trunk. The hydraulic control system of the column for descent contains control lines for controlling the operation of: the upper insulating valve, the bypass valve, the emergency disconnection mechanism, the underwater test fountain valve.

EFFECT: ensuring increased safety in the event of an emergency disconnection of equipment in the event of emergency situations.

4 cl, 6 dwg, 1 tbl