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IPDB › China Industry › Tools & Hardware

China, Chinese API 7-1 Drill Collar / Slick and Spiral Drill Collar¹ Industrial Products Supplier Manufacturer Details, price list catalog:

China Industrial Products Supplier Manufacturer List Catalog

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Drilling Tools Drill Collar Spiral Drill Collar API 7-1 Drilling String

Goldenman Petroleum Equipment Co., Limited

Preview:

Product Description DRILL COLLAR Drill Collar-Purpose: Adds weight to the drill bit, keeping it in contact with the formation while providing stability to the drill string.-Specifications: 1) Size: Outer diameters of 3-1/8" to 11", with standard lengths of 31 feet. 2) Material: Alloy steel with high yield strength. 3) Weight: Typically heavier than drill pipe (specific gravity around 7.8). 4) Thread Connections: API Regular or other premium threads.-Features: 1) Spiral grooves for differential sticking prevention. 2) Non-magnetic drill collars (for sensitive directional tools).Drill collar specificationsNominal SizeODIDLengthBevel Dia. mmBending Strength RatiomminmminmmNC31-41(2-7/8IF)104.84-1/850.829150100.42.43:1NC35-47120.74-3/450.829150114.72.58:1NC38-50(3-1/2IF)127557.22-1/491501212.38:1NC44-60152.4671.42-13/169150/9450144.52.84:1NC44-62158.86-1/457.22-1/49150/9450149.22.91:1NC46-62(4IF)158.8158.871.42-13/169150/94501502.63:1NC50-70(4-1/2IF)177.8757.22-1/49150/9450164.72.54:1NC56-77196.87-3/471.42-13/169150/9450185.32.70:16-5/8REG209.68-1/471.42-13/169150/9450195.72.93:1NC61-90228.6971.42-13/169150/9450212.73.17:1We can supply full size drill collar with API 5D/5DP, Please leave a message for consultation. Drill pipe Size(in)OD of Pipe Body(mm)Wall Thickness of Pipe Bodymm2.3/8" to 6.5/8"60.32-168.287.11-12.70

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Tools & Hardware: API 7-1 Drill Collar / Slick and Spiral Drill Collar

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