API Non-Magnetic Drill Collar Size 3.1/2"

• After-sales Service: 24/7
• Warranty: 1 Year
• Manufacturing Process: CNC Milling
• Surface Treatment: Spray-Paint
• Operation Pressure: Atmospheric Pressure
• Material: Alloy
• Model NO.: GPE-D
• Size: 2.3/8",2.7/8", 3.1/2", 4", 4.1/2", 5", 5 1/2 Inch
• Diameter: 60.32mm-139.7mm
• Transport Package: Export Packing
• Trademark: SGPE
• Origin: China
• HS Code: 8431
• Production Capacity: 150000

Product Description

API Non-Magnetic Drill Collar Size 3.1/2" by GPE Oil Machinery Co., Ltd is a high-quality, non-magnetic drill collar designed for well drilling. It meets API 7-1 standards and is available in a heavier spiral design. Perfect for non-magnetic drilling operations.

Product Description

The drill collars offered by GPE Oil Machinery Co., Ltd are made of modified AISI 4145H chromium molybdenum alloy steel. These drill collar bars undergo full-length heat treatment and water quenching to obtain ASTM A-370 mechanical properties. With each drill collar, you will receive full mechanical and chemical mill test certifications, ensuring the highest quality standards.

Our drill collars are designed to provide exceptional performance and durability. The mill test certifications guarantee a hardness range of 285 to 341 BHN, ensuring the drill collars can withstand the toughest drilling conditions. Additionally, the impact value of 40 ft.-lbs. at room temperature, one inch below the surface, ensures reliable and safe operation.

To ensure precise and accurate bores, all drill collar bars are trepanned and drifted to API specifications. The bar surface finish is "as rolled," maintaining the original mill finish for enhanced performance.

 

Connections	ODmm	IDmm	Lengthmm
NC23-31	79.4	31.8	9150
NC26-35	88.9	38.1	9150
NC31-41	104.8	50.8	9150 or 9450
NC35-47	120.7	50.8	915 or 9450
NC38-50	127	57.2	9150 or 9450
NC44-60	152.4	57.2	9150 or 9450
NC44-60	152.4	71.4	9150 or 9450
NC44-62	158.8	57.2	9150 or 9450
NC46-62	158.8	71.4	9150 or 9450
NC46-65	165.1	57.2	9150 or 9450
NC46-65	165.1	71.4	9150 or 9450
NC46-67	171.4	57.2	9150 or 9450
NC50-67	171.4	71.4	9150 or 9450
NC50-70	177.8	57.2	9150 or 9450
NC50-70	177.8	71.4	9150 or 9450
NC50-72	184.2	71.4	9150 or 9450
NC56-77	196.8	71.4	9150 or 9450
NC56-80	203.2	71.4	9150 or 9450
6 5/8REG	209.6	71.4	9150 or 9450
NC61-90	228.6	71.4	9150 or 9450
7 5/8REG	241.3	76.2	9150 or 9450
NC70-97	247.6	76.2	9150 or 9450
NC70-100	254	76.2	9150 or 9450
8 5/8REG	279.4	76.2	9150 or 9450