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Spiral Drill Collar With Elevator Groove And Slip Groove 吊卡槽、卡瓦槽螺旋钻铤

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Spiral Drill Collar With Elevator Groove And Slip Groove 吊卡槽、卡瓦槽螺旋钻铤

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Category： Drill pipe and collar

Key words：Drill pipe and collarSpiral Drill Collar With Elevator Groove And Slip Groove 吊卡槽、卡瓦槽螺旋钻铤

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Product description

Parameters

Elevator groove and slip groove made on box thread face of slick drill collar or spiral drill collar can be used as lifting sub and safety slip when trip out. The technical parameters for elevator groove and slip groove is as per API spec 7-1 .Hard banding is optional at customers request.

Technical specification and parameters

Drill collar ranges O.D. (mm)	Elevator groove depth(mm)	Elevator groove length(mm)	Slip groove depth(mm)	Slip groove length(mm)
101.6～117.5	5.6	4.8	406	457
120.6～142.9	6.4	4.8	406	457
146.0～168.3	7.9	6.4	406	457
171.4～219.1	9.5	6.4	406	457
≥222.2	11.1	6.4	406	457

Size	Tube OD (+1/16,-1/32)	Tube OD 1	Tool Joint OD (+1/16,-1/32)2	Tool Joint OD (+1/8,-0)	Connection	Max Elevator Upset Dia	Center Upset Dia (+1/16,-1/32)	Min Drift Dia3
						Deu	Dcu
3 1/2	3 1/2	2 1/4	4 3/4 (4 7/8,5)	2 1/4	NC 38	3 7/8	4	2
		2 1/16		2 1/16				1 13/16
4	4	2 1/2	5 1/4	2 1/2	NC 40	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	NC 46	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	NC 50	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 1/2 FH	5 11/16	6	3
		3 3/8		3 3/8				3 1/8
		3 7/8		3 7/8				3 5/83/4
		4		4				3 3/4
6 5/8	6 5/8	4	8 (8 1/4,8 1/2)	4	6 5/8 FH	6 15/16	7 1/8	3 3/4
		4 1/2		4 1/2				4 1/4
		5		5				4 3/4
1.Maximum tube ID is 1/8 larger than nominal.Minimum tube ID is controlled by the drift requirement. 2.Optional Tool Joint ODs shown in parenthesis,to be agreed between purchaser and manufacturer. 3.Drift Diameter is based on ID tolerances of heavy wall pierced tube used for the center section.