API Spec 5DP Seamless Steel Oil Drill Pipe

Diameter: 2 3/8" - 6 5/8" Grades: E75, X95, G105, S135 Upset types: IU, EU, IEU Length: R2, R3 Drill Pipe List

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API 5DP Seamless Steel Oil Drill Pipe
Drill pipe is widely used in mining, geological drilling, oil and gas exploration and other fields. As an important part of the whole drill string, the drill pipe plays an important role in the drilling process.
Diameter: 2 3/8"-6 5/8"
Grades: E75, X95, G105, S135
Upset types: IU, EU, IEU
Length: R2, R3
Drill Pipe Size Chart

Size in	Weight ppf	Outside Diameter		Wall Thickness		Grade	Upset type
Size in	Weight ppf	in	mm	in	mm	Grade	Upset type
2⅜	6.65	2.375	60.3	0.280	7.11	E,X,G,S	EU
2⅞	10.40	2.875	73.0	0.362	9.19	E,X,G,S	IU,EU
3½	9.50	3.500	88.9	0.254	6.45	E	IU,EU
3½	13.50	3.500	88.9	0.368	9.35	E,X,G,S	IU,EU
3½	15.50	3.500	88.9	0.199	11.40	E	IU,EU
3½	15.50	3.500	88.9	0.199	11.40	X,G,S	EU,IEU
4	14.00	4.000	101.6	0.330	8.38	E,X,G,S	IU,EU
4½	13.75	4.500	114.3	0.271	6.88	E	IU,EU
4½	16.60	4.500	114.3	0.337	8.56	E,X,G,S	IU,EU
4½	20.00	4.500	114.3	0.430	10.92	E,X,G,S	IU,EU
5	16.25	5.000	127.0	0.296	7.52	X,G,S	IU
5	19.50	5.000	127.0	0.362	9.19	E	IEU
5	19.50	5.000	127.0	0.362	9.19	X,G,S	IU,EU
5	25.60	5.000	127.0	0.500	12.70	E	IEU
5	25.60	5.000	127.0	0.500	12.70	X,G,S	IU,EU
5½	21.90	5.500	139.7	0.361	9.17	E,X,G,S	IEU
5½	24.70	5.500	139.7	0.415	10.54	E,X,G,S	IEU
6⅝	25.20	6.625	168.3	0.330	8.38	E,X,G,S	IEU
6⅝	27.72	6.625	168.3	0.362	9.19	E,X,G,S	IEU

The drill pipe body has an outer diameter of 2 3/8′′ to 6 5/8′′ and is available in various sizes. The higher the steel grade of the drill pipe, the higher the strength and the stronger the load carrying capacity. However, it should be noted that when selecting a drill pipe, the higher the strength, the better. Because in the drilling fluid medium, as the steel grade increases, the corrosion fatigue strength of the drill pipe will decrease, that is, in the corrosive environment, the high steel grade drill pipe is more sensitive to corrosive media, and the corrosion fatigue strength is also reduced. More, it is more prone to corrosion fatigue fracture accidents. It is recommended that users follow the principle of “selecting low-grade drill pipes as much as possible under the premise of meeting the strength requirements”, and select the most suitable drilling tools according to the actual site to carry out drilling operations, which reduces the procurement cost and reduces the cost. The probability of an accident.
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