Heavy Weight Drill Pipe

Description

Heavy-weight Drill Pipe

Heavy weight drill pipe was developed to provid a gradual transition from the heavy weight drill collars to the relatively light weight drill pipe. This intermediate weight pipe has a wall thickness of approximately, and it helps prevent stress concentration at the top of the drill collars. It also allows you to drill at higher pms, reducing torque and differential pressure sticking. It is intended primarily for directional drilling. Because it bends easily, it simplifies directional control and  minimizes connection fatigue problems common to high angle or horizontal drilling. The reduced number of pipe failures and increased drill stem service also make it appropriate for some straight hole applications.

 

Size Designation		Nominal	Calculated Weight Wpe		Grade	Wall Thickness		Upset Ends, for     Weld-on Tool Joins(see note)
in.	mm	Weight	lb/ft	kg/m		in.	mm
2 3/8	60.3	6.65	6.26	9.32	E,X,G,S	0.28	7.11	EU
2 7/8	73	10.4	9.72	14.48	E,X,G,S	0.362	9.19	EU IU
3 1/2	88.9	9.5	8.81	13.12	E	0.254	6.45	EU IU
3 1/2	88.9	13.3	12.31	18.34	E,X,G,S	0.368	9.35	EU IU
3 1/2	88.9	15.5	14.63	21.79	E	0.449	11.4	EU IU
3 1/2	88.9	15.5	14.63	21.79	X,G,S	0.449	11.4	EU IEU
4	101.6	14	12.93	19.26	E,X,G,S	0.33	8.38	EU IU
4 1/2	114.3	13.75	12.24	18.23	E	0.271	6.88	EU IU
4 1/2	114.3	16.6	14.98	22.31	E,X,G,S	0.337	8.56	EU IEU
4 1/2	114.3	20	18.69	27.84	E,X,G,S	0.43	10.92	EU IEU
5	127	16.25	14.87	22.15	X,G,S	0.296	7.52	IU
5	127	19.5	17.93	26.71	E	0.362	9.19	IEU
5	127	19.5	17.93	26.71	X,G,S	0.362	9.19	EU IEU
5	127	25.6	24.03	35.79	E	0.5	12.7	IEU
5	127	25.6	24.03	35.79	X,G,S	0.5	12.7	EU IEU
5 1/2	139.7	21.9	19.81	29.51	E,X,G,S	0.361	9.17	IEU
5 1/2	139.7	24.7	22.54	33.57	E,X,G,S	0.415	10.54	IEU

 

Range Name Drill Pipe

Range1 5.49   ~   6.71 m

Range2 8.23   ~   9.14 m

Range3 11.58   ~   13.72