API Standard Non-Magnetic Drill Collar//Heavy Weight Drill Pipe for Oilfield

• Customization: Available
• After-sales Service: Provide
• Warranty: 12 Months
• Model NO.: SK002
• Manufacturing Process: Forging
• Surface Treatment: Spray-Paint
• Operation Pressure: Atmospheric Pressure
• Material: Stainless Steel
• Type: Drill Pipe
• Use: Well Drilling
• Transport Package: Wooden Case
• Trademark: tolian
• Origin: China
• HS Code: 843143100
• Production Capacity: 1000

Product Description

Usage: HWDP is the transition zone between drill collar and drill pipe. It can not only reduce stress-formation in the connection of drill collar and drill pipe, but also reduce the wear on OD. The wall thickness of heavy weight drill pipe is between drill pipe and drill collar, its structure is similar with drill pipe. It is made from premium alloyed steel. Its both tool joints and middle upset are welded hardbands.

Material: 4145H, 4145H Mod and non-magnetic material

Standard: According to API Spec 7-1 standard

Types: Integral and Friction welded

Integral Heavy Weight Drill Pipe

Integral Spiral Heavy Weight Drill Pipe
 

Technical specifications and parameters for Integral Heavy Weight Drill Pipe
Size(in)	O.D.(in)	I.D.(in)	Tool joint O.D.(in)	Tool joint I.D.(in)	Connection	Max. elevator Dia.(in)	Central upset Dia.(in)	Min. drift dia. size(in)
3 1/2	3 1/2	2 1/4	4 3/4"	2 1/4	NC38	3 7/8	4	2
		2  1/16	(4 7/8,5)	2 1/16				1 13/16
4	4	2 1/2	5 1/4	2 1/2	NC40	4 3/16	4 1/2	2 1/4
		2  9/16		2 9/16				2 5/16
4 1/2	4 1/2	2 11/16	6 1/4	2 11/16	NC46	4 11/16	5	2 7/16
		2 3/4		2 3/4				2 1/2
		2 13/16		2 13/16				2 9/16
5	5	3	6 5/8	3	NC50	5 1/8	5 1/2	2 3/4
5 1/2	5 1/2	3 1/4	7 (7 1/4, 7 1/2)	3 1/4	5 1/2FH	5 11/16	6	3
		3 3/8		3 3/8				3 1/8
		3 7/8		3 7/8				3 5/8
		4		4				3 3/4
6 5/8	6 5/8	4	8 (8 1/4, 8 1/2)	4	6 5/8FH	6 15/16	7 1/8	3 3/4
		4 1/2		4 1/2				4 1/4
		5		5				4 3/4