DRILLING RIG AND DUST SUCTION CUP, AS WELL AS DEVICE FOR DUST REMOVAL FOR THEM Russian patent published in 2020 - IPC E21B21/15 

FIELD: oil and gas industry.

SUBSTANCE: group of inventions relates to oil and gas industry, in particular, to dust removal means using drilling rigs. Dust suction cup comprises conical outer casing and cylindrical outer casing, wherein the upper hole of the conical outer casing coincides with the opening in one end of the cylindrical outer casing, the hole on the side wall of the cylindrical outer casing serves as the dust outlet of the dust suction cap, first gap formed in conical outer casing along direction of cone generatrix, conical inner partition wall, respectively located in conical outer casing, wherein the second gap is formed in a position corresponding to the first gap, on the conical inner partition wall. Bottom hole of conical inner partition wall is smaller than lower hole of conical outer casing. First dust suction hole is formed between lower opening of conical inner partition wall and lower opening of conical outer casing. At least one second dust suction hole is formed in the side wall of the conical inner partition wall. First blocking component is combined with the hole in the other end of the cylindrical outer casing; at that, the first connecting hole for the drill pipe is formed in the first blocking component. Drill pipe of drilling rig passes through first connection hole for drill pipe so that dust suction cup is put on drill pipe.

EFFECT: higher efficiency of dust removal, simplicity and ease of use and application.

10 cl, 4 dwg