CONTROL DRIVE VALVE FOR USE IN WELL, SOLENOID USED IN THIS VALVE, METHOD OF CONTROL OF MAIN VALVE IN WELL USING PROPOSED VALVE AND METHOD OF CHANGING OF LIQUID FLOW VELOCITIES IN WELL Russian patent published in 2007 - IPC F16K31/02 E21B34/06

Abstract RU 2305215 C2

FIELD: oil producing industry.

SUBSTANCE: invention relates to control valves to be used at completing of wells, particularly, to control valve with drive to control its state and, by means of this, state of main valve used in well in which state of control valve is controlled by drive.

EFFECT: optimization of flow and control.

24 cl, 4 dwg

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RU 2 305 215 C2

Authors

Okalan Murat

Dates

2007-08-27—Published

2005-08-29—Filed