Definition, common specification table and joint size of drill pipe for coal mine

Release time:

2019-11-23

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geological drill pipeAlso called anti-British drill pipe, round drill pipe, outer flat drill pipe, geological alloy drill pipe, coal mine tunnel regular drill pipe, exploration drill pipe.
Geological drill pipe is mainly used for coal mine water exploration, gas exploration and geological exploration with drilling construction drilling tools. The geological drill pipes we produce include drill pipes regular coal mine tunnels, exploration drill pipes up to Φ89mm for oil drilling and down-the-hole for rock drilling in mines.drill pipe.

Serial Number	Specification model mm					Production process	Connection form
	Diameter	Length			Thread form
1	F34		500～3000	taper thread		friction welding	male and female connection
2	F42		500～3000	taper thread		friction welding	male and female connection
3	F50		500～3000	taper thread		friction welding	male and female connection
4	F63.5		500～3000	taper thread		friction welding	male and female connection
5	F73		500～3000	taper thread		friction welding	male and female connection
6	F89		500～3000	taper thread		friction welding	male and female connection
7	F35		500～3000	Rectangular internal thread		Body thread	Connector connection
8	F42		500～3000	Rectangular internal thread		Body thread	Connector connection
9	F50		500～3000	Rectangular internal thread		Body thread	Connector connection
10	F60		500～3000	Rectangular internal thread		Body thread	Connector connection

Body rib drill pipe

The main body rib drill pipe is also called the main body groove drill pipe, wide wing spiral drill pipe; It is produced on the basis of thickening high-quality alloy steel pipe through high-pressure forming, vacuum tempering treatment, friction welding, pipe body milling groove and other processes. Compared with the rib drill pipe, the main body rib drill pipe has the advantages of fast slag discharge speed and small rotation resistance of the rib drill pipe. At the same time, when drilling deep holes, due to the advantages of the integrated design process and its wall thickness, its wear resistance is better and its service life is longer. It is now widely used in deep hole drilling in medium and hard coal rock formations and has been well received by customers.

Line Number	Specifications and modelsmm				Build Discussion Drill Hole Deep Degree	TorqueN.m
	Diameter of drill pipe	Length	Joint form	Wall thickness
1	F42	800～1500	taper thread	10mm	50～100m	3500
2	F50	800～1500	taper thread	10mm	50～120m	5200
3	F50	800～1500	RectangleThread	10mm	50～200m	5200
4	F63.5	800～1500	taper thread	12mm	50～250m	8000
5	F73	800～1500	taper thread	12mm	50～300m	10000
6	F73	800～1500	Sealing thread	12mm	50～300m	10000
7	F73	800～1500	rectangular thread	12mm	50～300m	10000
8	F89	800～1500	taper thread	12mm	≥300m	12000
9	F89	800～1500	rectangular thread	12mm	≥300m	12000

Geological spiral drill pipe

Geological spiral drill pipe is made by our company on the basis of high torque performance of geological drill pipe, using single spiral blade or double spiral blade, processed and welded by prestressed winding process. The drill pipe body is made of high-quality geological special alloy steel pipe, and the drill pipe joint is made of high-quality alloy structural steel. After vacuum conditioning, the fatigue strength and shear strength are greatly improved.

Using advanced friction welding production process, the drill pipe has the characteristics of high bending strength and firm welding. The production equipment completely adopts advanced CNC processing equipment, which has the characteristics of high production efficiency and stable quality. It can ensure the requirements for straightness when drilling deep holes. The ultra-low spiral spiral blade design makes the product have the characteristics of large torque, fast slag discharge speed, good drilling and forming, and not easy to get stuck. It is especially suitable for deep hole drilling of soft coal seams and coal-like rocks with poor drainage effect. The geological spiral drill pipe with diameter Φ73 or less can be directly used with various full hydraulic drilling rigs. The drilling rig is used to directly clamp the spiral outer circle of the drill pipe for drilling and replacement of the drill pipe, which is convenient and quick, and greatly reduces the labor intensity of the operator. In the drilling under the condition of ultra-loose and soft high-pressure coal seam, when the set drilling construction technology is adopted, the large spiral geological drill pipe with a diameter of 90,113,133,146 can be selected to conveniently realize the laying and installation of the core pipe. This series of products provides a guarantee for efficient deep hole drilling in mines and fills the domestic gap.

Serial Number	Specifications and modelsmm			Production process	Connection form with drilling rig
	Diameter	Length	Thread form
1	F50-42	500 ~3000	taper thread	friction welding	Clamping outer circle
2	F63.5-42	500 ~3000	taper thread	friction welding	Clamping outer circle
3	F63.5-50	500 ~3000	taper thread	friction welding	Clamping outer circle
4	F73-50	500 ~3000	taper thread	friction welding	Clamping outer circle
5	F73-63.5	500 ~3000	taper thread	friction welding	Clamping outer circle
6	F90-63.5	500 ~3000	taper thread	friction welding	Equipped with active drill pipe
7	Φ98-73	500 ~3000	hexagonal connection	friction welding	Equipped with active drill pipe
8	F110-63.5	500 ~3000	taper thread	friction welding	Equipped with active drill pipe
9	F130-63.5	500 ~3000	taper thread	friction welding	Equipped with active drill pipe
10	F146-73	500 ~3000	taper thread	friction welding	Equipped with active drill pipe
11	Φ250-89	500 ~3000	Flange connection	Flange connection	Direct rig

Special-shaped multi-edge grooved drill pipe
Special-shaped multi-edge grooved drill pipe, also known as triangular heavy-duty grooved drill pipe and triangular grooved thrust slag discharge drill pipe; It is a patented product of our company (patent number ZL 200910064973.0) and a new type of drilling tool product with wide adaptability to formation conditions with wide adaptability to coal seam hardness coefficient. The production of a series of products such as the outer triangular transmission type grooved drill pipe, the hexagonal double pin quick connection tensile type grooved drill pipe, and the large diameter threaded connection type grooved drill pipe. It is widely used in deep hole drilling construction of high gas coal seam, especially soft coal seam. Under the reasonable design condition of bit diameter difference, it has the performance characteristics of high torque and high speed turning on the basis of triangular greasy wiping and stirring protection hole.

Line Number	Specifications and modelsmm				Build Discussion Drill Hole Deep Degree	TorqueN.m
	Diameter of drill pipe	Length	Joint form	Wall thickness
1	F42	800～1500	taper thread	10mm	50～100m	3500
2	F50	800～1500	taper thread	10mm	50～120m	5200
3	F50	800～1500	RectangleThread	10mm	50～200m	5200
4	F63.5	800～1500	taper thread	12mm	50～250m	8000
5	F73	800～1500	taper thread	12mm	50～300m	10000
6	F73	800～1500	Sealing thread	12mm	50～300m	10000
7	F73	800～1500	rectangular thread	12mm	50～300m	10000
8	F89	800～1500	taper thread	12mm	≥300m	12000
9	F89	800～1500	rectangular thread	12mm	≥300m	12000

Efficient spiral drill pipe

High-efficiency spiral drill pipe is developed on the basis of absorbing the advanced production technology of Germany and integrating the latest research results of our company. The drill pipe body is made of high-pressure seamless alloy steel pipe, and the spiral blade is made of high wear-resistant T-shaped steel strip, which is prestressed and wound and welded. The drill pipe joint is made of high-quality medium-carbon alloy steel, which is subjected to vacuum conditioning and high-pressure forming. This series of products using four or six-way quick connection, the use of automatic locking by the spring pin, equippedUType or semi-ring type anti-release pin, so that the torque of the drill pipe to achieve the best state. This series of products are mainly used with portable or hand-held drilling rigs. The drill pipe has light weight, rapid connection and fast slag discharge speed, which greatly improves the work efficiency, so it is called high-efficiency spiral drill pipe. This series of products are widely used in the drilling construction of water exploration and gas exploration under the geological conditions of coal seam and near coal seam, and are divided into water type and water type.

Line Number	Specifications and modelsmm				Theoretical torqueN.m	Connection mode
	Spiral diameter	Rod diameter	Length	Joint size
1	F28	F18	500 ~3000	F12 ×12	150～200	Four-way connection
2	F30	F18	500 ~3000	F12 ×12	150～200	Four-way connection
3	F32	F18	500 ~3000	F12 ×12	150～200	Four-way connection
4	F38	F21	500 ~3000	F14×14	100～350	Four-way connection
5	F40	F21～22	500 ~3000	F14×14	100～350	Four-way connection
6	F42	F22	500 ~3000	F13 ×13	200～350	Four-way connection
7	F69	F25～27	500 ~3000	F18 ×18	250 ~350	Four-way connection
8	F69	F25～27	500 ~3000	B20×20	350～450	hexagonal connection
9	F75	F32～42	500 ~3000	F24 ×24	350～450	Four-way connection
10	F89	F32～50	500 ~3000	F26 ×26	350～450	Four-way connection
11	F98	F73	500 ~3000	B45×45	10000-12000	hexagonal connection
12	F113	F63～73	500 ~3000	B45×45	8000-12000	hexagonal connection

Key words:

Definition of Special-shaped Multi-edge Groove Thrust Slagging Drill Pipe/Heavy-duty Three-edge Groove and Common Specification Parameter Table?

What are the common specifications and joint sizes of quick-connect spiral drill pipes?

Definition of Special-shaped Multi-edge Groove Thrust Slagging Drill Pipe/Heavy-duty Three-edge Groove and Common Specification Parameter Table?

What are the common specifications and joint sizes of quick-connect spiral drill pipes?

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