SYSTEM FOR WIPING THE TOOL JOINT OF A DRILLING PIPE Russian patent published in 2022 - IPC E21B33/08 E21B12/06 

FIELD: mining.

SUBSTANCE: invention relates to the petroleum and gas industry and mining, namely, to an apparatus for removing drilling mud from the outer surface of drilling pipes. The system for wiping the tool joint of a drilling comprises at least two quick-release cartridges attached on roller carriages, configured for reciprocating movement along a rail system. The wiping part of the cartridges is made of an elastic material and has central holes forming a round hole upon closure. The system is controlled automatically. The automatic control system is implemented by reading the RFID tag installed on the drilling pipe, computer processing of the information read from the RFID tag, and ensures the movement of the cartridges to form a hole, with a diameter equal to the diameter of the drilling pipe at the moment of passage thereof through the cartridges, between said cartridges. The body of each of the quick-release cartridges is made metal and protected by at least two casings. The roller carriages are configured to move by means of pneumatic cylinders controlled by the automatic control system.

EFFECT: creation of an effective wiping system ensuring the removal of contamination from varying-diameter pipes without interrupting the operation thereof, and ensuring maintainability by means of quick cartridge replacement.

7 cl, 5 dwg