CIPDB › China Industry › Tools & Hardware › Drilling Tools
Advanced API 7-1 Slick Drill Collar for Oilfield Applications1
Drilling ToolsOilfield Drilling CollarAPI 7-1 Collar
Goldenman Petroleum Equipment Co., Limited
Preview:
Product Description DRILL COLLAR Drill Collar-Purpose: This innovative drill collar is designed to add essential weight to the drill bit, ensuring it remains in continuous contact with the geological formation. It enhances overall stability and efficiency of the entire drill string, making it indispensable for optimal drilling operations.-Specifications:1) Size: Available in a versatile range of outer diameters from 3-1/8" to 11", complemented by standard lengths of 31 feet, ensuring compatibility with a variety of drilling needs.2) Material: Crafted from premium alloy steel, renowned for its exceptional high yield strength, offering durability and resilience under demanding conditions.3) Weight: Intentionally crafted to be heavier than standard drill pipes, with a specific gravity around 7.8, to ensure optimal downward force and stability during drilling.4) Thread Connections: Equipped with API Regular or other premium thread options, ensuring secure and reliable connections for a seamless drilling experience.-Features:1) Spiral grooves: Skillfully designed spiral grooves serve as a proactive measure against differential sticking, enhancing efficiency and reliability during drilling.2) Non-magnetic drill collars: Specifically engineered non-magnetic variants are available for precision tasks involving sensitive directional tools, ensuring accuracy and effectiveness.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
Purchasing Agent
Note: Send your message to supplier or manufacturer.
Welcome to our Professional and comprehensive procurement services...