API 7-1 Non-Magnetic Drill Collar Spiral-Grooved Drill Collar Nmdc

• 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 7-1 NMDC Non-Magnetic Drill Collar Size 5"

Since all magnetic measuring instruments sense the geomagnetic field of the hole when measuring the direction of the hole, the measuring instrument must be in a non-magnetic environment. However, in the drilling process, the drill tool often has magnetic field, which affects the magnetic measuring instrument, and can not get the correct borehole trajectory measurement information data. The use of a non-magnetic drill collar can implement a non-magnetic environment and has the characteristics of a drill collar in drilling.

Discover our high-quality API 7-1 NMDC Non-Magnetic Drill Collar, designed for well drilling. Made by GPE Oil Machinery Co., Ltd, this drill collar is essential equipment for efficient drilling operations. Get yours now!

 

Product Description: Drill Collars by GPE Oil Machinery Co., Ltd

 

The drill collars offered by GPE Oil Machinery Co., Ltd are manufactured using modified AISI 4145H chromium molybdenum alloy steel. These drill collar bars undergo full-length heat treatment and water quenching to achieve the desired ASTM A-370 mechanical properties. Each drill collar is accompanied by comprehensive mechanical and chemical mill test certifications, ensuring the highest quality standards.

 

Our drill collars boast a hardness range of 285 to 341 BHN, guaranteeing exceptional durability and resistance to wear and tear. Additionally, they exhibit an impressive impact value of 40 ft.-lbs. at room temperature, one inch below the surface, ensuring reliable performance even in challenging drilling conditions.

 

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

 

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