Fully locked pressurized drill pipe

Summary:

During the drilling process, the fully locked pressurized drill pipe can form a locking buckle with the inner key and outer key of the power head rotating, which can directly transmit the pressure on the power head to the drill bit through the concave and convex teeth of the drill pipe. Currently, this type of drill pipe is the best for transmitting pressure, especially for construction in hard formations and permafrost layers.

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Product Details

Product Description
The fully locked pressurized drill pipe is composed of three sets of key strips with concave and convex teeth that are equally divided and combined.
During the drilling process, the fully locked pressurized drill pipe can form a locking buckle with the inner key and outer key of the power head rotating, which can directly transmit the pressure on the power head to the drill bit through the concave and convex teeth of the drill pipe. Currently, this type of drill pipe is the best for transmitting pressure, especially for construction in hard formations and permafrost layers.
During the drilling process, pressure points can be formed on each part of the drill pipe, reducing the wear and tear on the locally pressurized tooth key bars. It also avoids the difficulty of pipe wall deformation and sticking caused by the drill pipe always being pressurized at a certain position. When used, the concave convex tooth keys that drive the inner keys evenly and the outer concave convex tooth keys form good meshing, forming multiple points of pressure in the pressurized area. The force distribution is stable and not easy to get stuck, especially improving work efficiency, and thus receiving praise from many rotary excavation users.
The drill pipe has applied for a patent, patent number: ZL 201220161611.0 ZL201320083189.6
Technical parameter

Drilling depth (m)	Drill pipe form	Number of sections	Single section length (m)	Drilling depth (m)	Torque (kN · m)
φ 299/305	Machine lock rod	3/4	5-14	13-65	110-120
	Wear resistance rod	3/4/5
φ 340/342	Machine lock rod	3/4	5-14	24-65	110-150
	Wear resistance rod	3/4/5
φ 355	Machine lock rod	3/4	5-14	24-65	110-160
	Wear resistance rod	3/4/5
φ 368	Machine lock rod	3/4	5-14	24-65	150-180
	Wear resistance rod	3/4/5
φ 377	Machine lock rod	3/4	5-14	24-65	150-180
	Wear resistance rod	3/4/5
φ 394	Machine lock rod	3/4	5-15	24-70	180-220
	Wear resistance rod	3/4/5
φ 406	Machine lock rod	3/4	5-15	24-70	180-240
	Wear resistance rod	3/4/5
φ 419	Machine lock rod	3/4	5-15	24-70	200-270
	Wear resistance rod	3/4/5
φ 440/445	Machine lock rod	3/4	5-15	24-85	220-260
	Wear resistance rod	3/4/5/6
φ 470	Machine lock rod	3/4	5-18	24-102	220-32
	Wear resistance rod	3/4/5/6
φ 482	Machine lock rod	3/4	5-18	24-102	220-360
	Wear resistance rod	3/4/5/6
φ 508	Machine lock rod	3/4	5-18	24-102	260-400
	Wear resistance rod	3/4/5/6
φ 530	Machine lock rod	3/4/5	5-20	32-114	320-420
	Wear resistance rod	3/4/5/6
φ 558/560	Machine lock rod	3/4/5	5-24	32-118	360-450
	Wear resistance rod	3/4/5/6
φ 575/580	Machine lock rod	3/4/5	5-24	32-118	360-460
	Wear resistance rod	3/4/5/6
φ 630	Machine lock rod	3/4/5	5-26	32-150	400-500
	Wear resistance rod	3/4/5/6

Keyword:

Friction type drill pipe

New type of drill pipe

Friction type drill pipe

New type of drill pipe

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