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

摘要

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