API Non Magnetic Oil Seamless Steel Drill Pipe Spiral Collar for Oilfield Drilling Rig Petroleum Equipment Tool

• Customization: Available
• After-sales Service: 24/7
• Warranty: 1 Years
• Model NO.: Drill Collar
• Manufacturing Process: CNC Milling
• Surface Treatment: Spray-Paint
• Operation Pressure: Atmospheric Pressure
• Material: Alloy
• Drill Collar: Drill Collar
• Spiral Drill Collar: Spiral Drill Collar
• Non Magnetic Drill Collar: Non Magnetic Drill Collar
• Petroleum Equipment: Petroleum Equipment
• Drilling Rig Tool: Drilling Rig Tool
• Transport Package: Export Packing
• Specification: 79.4mm -279.4mm
• Trademark: SGPE
• Origin: China
• Production Capacity: 150000
• Package Size: 500.00cm * 500.00cm * 300.00cm
• Package Gross Weight: 500.000kg

Product Description

API 7-1 Drill Collar /Spiral Drill Collar for Well Drilling

 

Drill Collar is the basic component in the BHA which provides weight on the bit for drilling and keeps the drillsting in tension.API Drill Collar has been approved by the NS-1 certification, it is manufactured from 4145H modified quenched and tempered steel, strict metallurgical specifications are followed to insure that full length heat treating produces a consistent maximum depth of hardness.   Features and Benefits   A hardness range of 285 to 341 BHN and a Charpy impact value of 40 ft-lbs are guaranteed at evenly distributed 16 points in any sections at room temperature;   Connections are completed(phosphate coated)to protect them from the elements after machining and to help prevent galling upon initial make-up;   Thread roots are cold rolled on API and H-90 connections;   Pressed steel thread protectors are supplied for all drill collar that are equipped with standard connections ad protectors are supplied for all drill collar that are equipped with standard connections