DEVICE FOR SELECTIVE COMPLETION OF WELL Russian patent published in 2011 - IPC E21B33/10 E21B43/12 

FIELD: gas and oil production.

SUBSTANCE: device for selective completion of wells is equipped with electric control valve, case of control component of which is secured on flow string. A gate is connected with an electric actuating mechanism connected with an electric power source via a control unit by means of wiring laid on a shuttle device. The shuttle device is equipped with a tubular case with a telescopic elastic component concentrically arranged outside. The elastic component is connected with the case by means of thermo-sensitive element of alloy with shape memory effect and by means of a reverse element. Additionally the device is equipped with a split electro-contact element. One of split sections of the electro-contact element has a form of electric contacts electrically insulated one from another and connected with corresponding electric wires with an electric actuating mechanism. Another part has a form of electric contacts insulated from each other, arranged on a spacing element of the shuttle device and connected with corresponding electric wires secured on it. The reverse element has a form of a thermo-sensitive element of alloy with shape memory effect. Ends of both thermo-sensitive elements of the shuttle device are connected with electric wires secured on it.

EFFECT: expanded functionality of device.

3 cl, 3 dwg