DEVICE TO CONTROL GAS PRODUCTION FROM GAS AND/OR GAS CONDENSATE WELLS (VARIANTS) Russian patent published in 2007 - IPC E21B47/10 E21B43/12 

FIELD: oil and gas production, particularly control devices to regulate well output in the case of in-situ electric power shortage.

SUBSTANCE: device in accordance with the first embodiment comprises has inhibitor, namely methanol, supply system, controller, power sources linked to controller, radio-transmission module or modem with antenna to provide information interchange with control center. Device also has corresponding gas and/or gas condensate well parameter sensor, gas flow regulation module and methanol supply module interconnected with controller. Gas flow regulation module comprises control valve with drive and position sensor. Methanol supply module comprises controlled valve with drive and methanol flow sensor. The device additionally has ejector for each well installed in methanol supply line upstream of methanol supply module and electromagnetic methanol distribution means linked to controller. Methanol distribution means has one hydraulic input/output connected to drive of controlled gas flow regulation module valve. Two other inputs/outputs are linked to methanol supply line and to vacuum cavity of ejector. Electromagnetic methanol distribution means comprises sealed body with three orifices and spring-loaded rods installed in the body and extending along orifice axes. The first ends of the rods cooperate with electromagnet. Other rod ends are provided with gates for above orifice sealing. The second device variant is also disclosed.

EFFECT: decreased power inputs for control device operation due to possibility of methanol or gas energy utilization.

6 cl, 4 dwg