API Mechanical Internal Cutter Fishing Tools

• Customization: Available
• After-sales Service: Provide
• Warranty: 1 Year
• Model NO.: ND-J
• Manufacturing Process: CNC Milling
• Surface Treatment: Spray-Paint
• Operation Pressure: Atmospheric Pressure
• Material: 4145 H
• Color: Blue&Customization
• OEM: Provide
• Other: API and ISO
• Transport Package: Wooden Case
• Specification: ND-J73× 55
• Trademark: Kaidi
• Origin: China
• HS Code: 8208101900

Product Description

The ND-J type internal cutter is a down-hole mechanical cutting tool designed to cut casings, tubings and drill pipes. The main advantages are its simple structure, reliable performance and high cutting efficiency. In order not to cut the casing and tubing couplings, the cutter shall be kept away from these couplings during operation. Depending on drilling conditions, it can be used in conjunction with coupling locator to locate the position of the nearest coupling from the cutter. When the internal cutter is used with the releasing spear, it can cut and remove the cut tubing in one fishing operation. Alternatively, a separate fishing tool can be used to remove cut pieces.
Working Principle
Lower the internal cutter to a designated cutting depth, rotate (3 rounds) the cutter mandrel in the clockwise direction to separate the sliding sleeve and the sliding sheet. At this instance, with the spring effect, the friction block will be pressed against the pipe wall. In addition, due to the engagement of the sliding sleeve and sheet, the main center body and the slip portion is pushed upwards along the tapered slip cone, expanding the slip diameter. As the slip diameter expands, it bites on the internal wall of the drill pipe. At this moment, anchor the cutter on the pipe wall and lift the cutter mandrel by 10mm. After which, slowly lower and rotate mandrel, as the cutters (3 pcs) move down the tapered cutter block, it open up radially to cut the pipe wall.

The cutting operation is completed when the mandrel pressed against the end of the thrust ring. Lift the mandrel to release and reposition the cutters via its own weight and the function of the blade spring. As the mandrel is lifted, the sliding sleeve and sheet re-engage back to its original position. In addition, as the tapered slip cone moves upwards, the slip loses its grip on the pipe wall and the cutter releases its anchor on the wall. Continue to lift mandrel until the locating ring engages with the guide nut before pulling the tool out.

Model	Product  Code	O.D.(mm)	Connection (mm)	ID(mm)	ID of cut pipe(mm)	Weight Pipe(ib/ft)
ND-J73×55	X04-73000	55	1.9 NU	8	59~62	6.4~7.9(2 7/8 TBG)
ND-J89×68	X04-89100	68	1.9EU	13	74.2~78	7.7~10.2(3 1/2 TBG)
						9.5(3 1/2D.P.)
ND-J114×91	X04-114000	91	NC26	16	97~104	12.6~15.2(4 1/2 TBG)
						9.5~15.1(4 1/2CSG)
						13.75~16.6(4 1/2D.P.)
ND-J114×89	X04-114100	89	NC26	16	95~104	12.6~17(4 1/2 TBG)
						9.5~16.9(4 1/2CSG)
						13.75~16.6(4 1/2D.P.)
ND-J127×102	X04-127000	102	NC26	18	108.6~116	11.5~18(5CSG)
						19.5(5 D.P.)
ND-J127×96	X04-127100	96	NC26	16	103-116	11.5~23.2(5CSG)
						19.5(5 D.P.)
ND-J140×108	X04-140200	108	NC31	18	108.6~116	14~23(5 1/2CSG)
						21.9~24.7(5 1/2D.P.)
ND-J178×145	X04-178300	145	NC38	38	152.5~161.7	23~35 (7 CSG)
ND-J203×167	X04-203100	167	NC50	44	183~193.7	16~26 (8 CSG)
ND-J219×181	X04-219100	181	NC50	44	190.7~205.6	24~49 (8 5/8 CSG)
ND-J245×203	X04-245100	203	NC50	50	216.8~228.6	32.3~53.5 (9 5/8 CSG)
ND-J273×228	X04-273100	228	6 5/8REG	57	242.8~252.7	45.5~65.7 (10 3/4 CSG)
ND-J340×298	X04-340100	298	6 5/8REG	76	313.6~323	48~72  (13 3/8 CSG)