OIL WELL, OIL WELL OPERATION METHOD AND PACKER USED IN THE WELL Russian patent published in 2005 - IPC

FIELD: oil well operation, particularly to supply power or control signal into well.

SUBSTANCE: method involves installing packer having power-operated device and pipeline structure having electroconductive part into oil well; bringing the packer into working position; electrically connecting power-operated device with electroconductive part of pipeline structure; installing inductance choke located around electroconductive part of pipeline structure and bringing thereof into working position; applying time-alternating current to pipeline structure; directing part of electric current trough power-operated device by means of inductance choke and performing oil production. Casing pipe or ground surrounding the well may be used as return circuit. Packer power-operated device has electrically controlled valve which manages fluid flow between packer sides and communication and control module electrically linked with the valve. Communication and control module comprises modem for receiving control commands coded in communication signals. Communication and control module performs decoding of control commands received with the use of modem and operates valve slide with the use of control command when the packer is installed in the working position. Power-operated device may have sensor and modem, which transmits data received by sensor in the form of electric communication signal, wherein the data demonstrates at least one physical characteristic.

EFFECT: improved oil production control due to possibility to perform real-time control of power-operated device included in packer.

20 cl, 4 dwg