- Contact Person : Mr. Niu Eric
- Company Name : Shijiazhuang Longway Petroleum Drill Tools Co., Ltd.
- Tel : 86-311-84386567
- Fax : 86-311-84386567
- Address : Hebei,jinzhou of shijiazhuang,Jinzhou City of Hebei Province town and village in the North Camp
- Country/Region : China
- Zip : 052260
Drill Stem Accessories----Drilling joints
Drill joints play a connecting role in oil and gas drilling and geological work, it is one of the main tools to connect the upper and lower part of the drill hole.
Drill pipe joint specifications: ø68, 78,105,121
Produces drill pipe joints with different specifications. Can provide various kinds of joint blanks, polished and finished products according to customers needs. Joints are made of quality alloy steel through special heat treatment. Have the features of strong strength, good toughness, and long usage life. Surface of screw is copper-plated or phosphated. Good adhension-prevention. Mechanical feature meets the requirements in SY/T5290 and in API Spec7.
| Steel Grade | DZ40, DZ50, R780, G105 | ||||||
| Diameter pipe( mm) | 60 | 50 | 73 | 89 | 102 | 114 | 127 |
| Joint diameter(mm) | 75 | 65 | 105 | 127 | 133.4 | 158.8 | 168 |
| Wall thickness(mm) | 7.1 | 6.5 | 9.19 | 9.5 | 8.38 | 8.56 | 9.19 |
| Length of drill pipe(mm) | 1000-4500 | 1000-4500 | 1500-9500 | 1500-9500 | 3000-9500 | 1500-9500 | 5000-9600 |
| Upset style | IU, EU, IEU | ||||||
Drill Stem Accessories----Drilling joints