DOWNHOLE FILTER CLEANING DEVICE Russian patent published in 2020 - IPC E21B37/08 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to oil and gas industry. Device for cleaning a downhole filter includes a surface control unit and a downhole portion of the device, comprising a brush unit with a unit drive and an oscillation generator mounted in a sealed housing, and a means of delivering to the bottomhole of the well and supplying electric power, wherein the geophysical cable is used as the delivery and power supply means. Control unit is made in the form of a system unit with a monitor, and in the downhole part of the device there is a fixing unit, a block of brushes, downhole sensors and a downhole sensor controller, to the input of which they are connected and which output is connected via geophysical cable with system unit, and well control controller connected by well control line and geophysical cable to control controller is installed.

EFFECT: control of device position and cleaning parameters and control of cleaning process.

8 cl, 4 dwg