2 7/8 Inch, 3 1/2 Inch, 4 1/2", 6 5/8 Inch, 7 5/8 Inch HDD Horizontal Directional Drill Pipe (rod) for Trenchless Drilling

• Standard: RoHS, CE, BS, DIN, JIS, AISI, API
• Length: 1 ~ 9
• Usage: Oil Mining, Coal Mining, Well Drilling, Ore Mining
• Material: Carbon Steel
• Transport Package: Steel Packing
• Specification: 1~9m
• Model NO.: 7 5/8inch
• Trademark: ROSCHEN
• Origin: China
• HS Code: 843143210
• Production Capacity: 2000PCS/Month

Product Description

HDD Horizontal Directional drill pipe 7 5/8inch
 

The ROSCHEN's drill pipe products cover the fields of trenchless drill pipe drilling tools for urban construction and pipeline transmission construction; mine drilling tools, well drilling tools, heat source drilling tools and petroleum drilling tools for resource development and utilization; anchor drilling tools for engineering construction; gas rescue drilling pipes and emergency drilling pipes for mining and handling dangerous situations; linkage accessories for various types of drilling machines, etc.
 
ROSCHEN always maintains certain advantages in technical equipment. There are two drill pipe production lines with an annual production capacity of 4000 tons. The main key equipment includes the intelligent full-automatic drill pipe intermediate frequency heat treatment production line. The equipment thread laser processor and 600t friction welding machine are welding machines with a diameter of 300 mm and a specification of J, 1000 ton thickening forging press, various intelligent CNC thread processing machines, wear-resistant automatic welding machine and other equipment.
 

 
Technology highlights
 
After the scientific design of the thickening end and the accurate calculation of the thickening process, the advanced thickening equipment is used for thickening to ensure the long and smooth inner transition zone.
The multi-point temperature measuring natural gas walking furnace widely accepted by the oil drilling tool manufacturing industry is used to heat treat the pipe body to ensure the best fit of strength and toughness.
 
After long-term cooperation with international mainstream drilling companies, they fully understood their thread design concept and thread processing method, greatly improving their thread design ability.
QPQ method is used to treat the thread surface. The wear resistance and anti sticking level of the thread are leading in the world.

HDD drill pipe parameters: 

Normal Size	Normal Weight	Grade	Upset	Wall Thickness	ID	Torsional Strength	Tensile Strength	Burst Pressure	Collapase Pressure	Connection	OD	ID	Pin Tong Space	Box Tong Space	Make-up Torque	Torsional Strength	Tensile Strenght	Torsional ratio	Adjusted Weight	Fluid Capacity	Fluid Displacement
in	lbs/ft			in	in	ft-lbs	lbs	psi	psi		in	in	in	in	ft-lbs	ft-lbs	lbs		lbs/ft	US gal/ft	US gal/ft
5	19.50	S-135	IEU	0.362	4.276	74100	712070	17105	15672	NC-50	6 5/8	2 3/4	9	12	38036	63406	1551706	0.86	24.09	0.7	0.37
5	19.50	S-135	IEU	0.362	4.276	74100	712070	17105	15672	NC-50 DS	6 5/8	3 1/4	9	12	43320	72200	1250000	97	23.19	0.71	0.35
5	25.60	S-135	IEU	0.500	4	94062	954259	23625	24300	NC-51 DS	6 5/8	2 3/4	9	12	55600	92600	1532800	0.98	24.04	0.7	0.37
5 1/2	21.90	S-135	IEU	0.361	4.778	91278	786809	15507	12679	5 1/2 FH DS	7 1/4	3 1/2	10	12	68270	113485	1754166	1.24	26.93	0.88	0.41
5 1/2	24.70	S-135	IEU	0.415	4.67	101834	894999	17826	17023	5 1/2 FH DS	7 1/4	3 1/2	10	12	68270	113485	1754166	1.11	29.66	0.85	0.45
5 1/2	24.70	S-135	IEU	0.415	4.67	101834	894999	17826	17023	5 1/2 FH	7 1/2	3	10	12	52059	87341	1925536	0.86	30.88	0.83	0.47
6 5/8	27.70	S-135	IEU	0.362	5.901	137331	961556	12909	7813	6 5/8 FH	8 1/2	4 1/4	10	13	65012	109227	2102260	0.8	34.17	1.34	0.53
6 5/8	27.70	S-135	IEU	0.362	5.901	137331	961556	12909	7813	6 5/8 FH DS	8 1/2	4 1/4	10	13	101685	169475	2277448	1.23	34.17	1.34	0.53
6 5/8	27.70	S-135	IEU	0.362	5.901	137331	961556	12909	7813	6 5/8 FH DS	8	4 3/4	10	13	74465	124110	1817990	0.9	31.82	1.36	0.48
6 5/8	27.70	S-135	IEU	0.362	5.901	137331	961556	12909	7813	5 1/2 FH DS	7 1/2	3 1/2	12	14	79000	131723	1754166	0.96	31.33	1.32	0.47
7 5/8	33.70	S-135	IEU	0.430	6.765	214941	1312148	14465	8584	6 5/8 FH DS	8 1/2	4 1/4	13	15	102520	170870	2277448	0.79	44.91	1.72	0.67
7 5/8	33.70	S-135	IEU	0.430	6.765	214941	1312148	14465	8584	6 5/8 FH DS	8 1/2	4 3/4	13	15	75662	126104	1817990	0.59	43.92	1.75	0.65
7 5/8	39.00	S-135	IEU	0.500	6.625	243035	1510920	15492	12651	6 5/8 FH DS	8 1/2	4 1/4	13	15	102520	170870	2277448	0.7	49.91	1.66	0.74
7 5/8	39.00	S-135	IEU	0.500	6.625	243035	1510920	15492	12651	6 5/8 FH DS	8 3/4	4	13	15	114800	191410	2488032	0.79	51.31	1.65	0.77
8 5/8	44.00	S-135	IEU	0.500	7.625	318253	1722967	13696	14745	JSH 7 1/8 FH DS *1	9 1/2	4	16	19	157900	263200	3056200	0.78	59.71	2.18	0.95
8 5/8	44.00	S-135	IEU	0.500	7.625	318253	1722967	13696	14745	JSH 70 DS *2	9	4	16	19	131000	218300	2735700	0.69	57.16	2.18	0.87
*1 tool joint connection type recommended by JSH
*2 tool joint connection type recommended by the customer

Quality control system 
 
The quality system is established according to API Q1. The professional quality system personnel have trained the whole staff for many times. Effective operation of quality system.
 
According to the requirements of API 5dp, 100% of drill pipe is subject to ultrasonic and magnetic flux leakage detection.
 
With all the required physical and chemical testing equipment, the drill pipe can be tested for all-round mechanical properties according to the requirements of API 5dp standard. All testing equipment is purchased from Mts.
 
Independent thread gauge storage room, 100% inspection of key thread parameters and keeping inspection records.
 
Raw material
Raw materials are from china top steel supplier Baosteel, the most advanced steel manufacturer in China.
 



website:
http://roschen.en.made-in-china.com