Non-Magnetic Drill Collar& Heavy Weight Drill Pipe - Sizes for Oilfield Directional Drilling

• Customization: Available
• After-sales Service: Lifetime Support
• Warranty: 12months
• Model NO.: API Standard
• Manufacturing Process: Casting
• Surface Treatment: Spray-Paint
• Operation Pressure: Atmospheric Pressure
• Material: Alloy
• Colour: Blue
• Transport Package: Wooden
• Specification: 4145H
• Trademark: KAIDI
• Origin: China
• HS Code: 8401100000
• Production Capacity: 50000 Pieces/Year

Product Description

Product Name: Non-magnetic Drill Collar              P530,P550,P650
Application: Directional drilling & MWD systems in oil and gas industry

Key Features:
Proprietary Material: Low-carbon stainless steel with excellent non-magnetic and mechanical properties.

API Compliance: Meets API standards and SY/T5144 specifications.

Advanced Manufacturing:

Cold-rolled threading for enhanced connection strength

Capable of producing double-shoulder/special threads

Quality Assurance:

Full-process control with precision testing equipment

Strict adherence to API 7-1, API 7-2, SY/T5144, etc.

Customization: Tailored solutions available.

Production Capabilities:
Complete production line including:
✓ Large deep-hole boring machines
✓ Medium-frequency heat treatment lines
✓ CNC lathes/spiral milling machines
✓ Marking machines

Product Range:
• Non-magnetic DCs/Heavy-weight DP
• Non-magnetic subs/Directional joints
• Standard DCs/Integral HWDP
• Square/Hexagonal drill pipes
• Spiral DCs/Centralizers
• Adapters/Long-shaft products

Custom Service: Special processing per client requirements

Technical specification and parameters

Drill Collar Number	O.D		I.D		Length (mm)	Bevel Diameter	Refbend g Strength ratio
	mm	in	mm	in
NC23-31	79.4	3 1/8	31.8	1 1/2	9150	76.2	2.57:1
NC26-35(2 3/8 IF)	88.9	3 1/2	38.1	1 1/2	9150	82.9	2.42:1
NC31-41(2 7/8 IF)	104.8	4 1/8	50.8	2	9150	100.4	2.43:1
NC35-47	120.6	4 3/4	50.8	2	9150	114.7	2.58:1
NC38-50(3 1/2 IF)	127.0	5	57.2	2 1/4	9150	121.0	2.38:1
NC44-60	152.4	6	57.2	2 1/4	9150&9450	144.5	2.49:1
NC44-60	152.4	6	71.4	2 13/16	9150&9450	144.5	2.84:1
NC44-62	158.8	6 1/4	57.2	2 1/4	9150&9450	149.2	2.91:1
NC46-62(4IF)	158.8	6 1/4	71.4	2 13/16	9150&9450	150.0	2.63:1
NC46-65(4IF)	165.1	6 1/2	57.2	2 1/4	9150&9450	154.8	2.76:1
NC46-65(4IF)	165.1	6 1/2	71.4	2 13/16	9150&9450	154.8	3.05:1
NC46-67(4IF)	171.4	6 3/4	57.2	2 1/4	9150&9450	159.5	3.18:1
N50-67(4 1/2 IF)	171.4	6 3/4	71.4	2 13/16	9150&9450	159.5	2.37:1
NC50-70(4 1/2 IF)	177.8	7	57.2	2 1/4	9150&9450	164.7	2.54:1
NC50-70(4 1/2 IF)	177.8	7	71.4	2 13/16	9150&9450	164.7	2.73:1
NC50-72(4 1/2 IF)	184.2	7 1/4	71.4	2 13/16	9150&9450	169.5	3.12:1
NC56-77	196.8	7 3/4	71.4	2 13/16	9150&9450	185.3	2.70:1
NC56-80	203.2	8	71.4	2 13/16	9150&9450	190.1	3.02:1
6 5/8 REG	209.6	8 1/4	71.4	2 13/16	9150&9450	195.7	2.93:1
NC61-90	228.6	9	71.4	2 13/16	9150&9450	212.6	3.17:1
7 5/8 REG	241.3	9 1/2	76.2	3	9150&9450	223.8	2.81:1
NC70-97	247.6	9 3/4	76.2	3	9150&9450	232.8	2.57:1
NC70-100	254	10	76.2	3	9150&9450	237.3	2.81:1
8 5/8 REG	279.4	11	76.2	3		266.7	2.84:1

Product Name: Non-magnetic Drill Collar
Application: Directional drilling & MWD systems in oil and gas industry

Key Features:
Proprietary Material: Low-carbon stainless steel with excellent non-magnetic and mechanical properties.

API Compliance: Meets API standards and SY/T5144 specifications.

Advanced Manufacturing:

Cold-rolled threading for enhanced connection strength

Capable of producing double-shoulder/special threads

Quality Assurance:

Full-process control with precision testing equipment

Strict adherence to API 7-1, API 7-2, SY/T5144, etc.

Customization: Tailored solutions available.

Production Capabilities:
Complete production line including:
✓ Large deep-hole boring machines
✓ Medium-frequency heat treatment lines
✓ CNC lathes/spiral milling machines
✓ Marking machines

Product Range:
• Non-magnetic DCs/Heavy-weight DP
• Non-magnetic subs/Directional joints
• Standard DCs/Integral HWDP
• Square/Hexagonal drill pipes
• Spiral DCs/Centralizers
• Adapters/Long-shaft products

Custom Service: Special processing per client requirements

FAQ for Oilfield Machinery Products

Q1: Do your products comply with API/ISO international standards?
Answer: Absolutely, our products are meticulously crafted to fully comply with API Spec 7-1, API 6A standards and boast ISO 9001 certification.
Q2:How do we ensure quality?
Answer:We guarantee quality by producing samples before mass production, ensuring each product meets our high standards.
Each product undergoes a rigorous final inspection before it's shipped.
Q3:: Are you the manufacturer? What petroleum machinery products do you mainly offer?
Answer: Indeed, we are a leading manufacturer, integrating research, development, production, and export from our own production base. Our key offerings include:
Fishing Tools, such as overshots, fishing spears, and milling shoes
Drilling Tools, including drill pipes, stabilizers, and reamers
Valves, featuring gate valves, check valves, and safety valves
A range of other downhole equipment, and more.
   
Q4: What is the warranty period? How can you claim it?
Answer: Enjoy a 12-month warranty. Simply provide the serial number and a detailed fault description, and expect a prompt response within 48 hours.
Q5: Do you offer technical training or on-site support for customers?
Answer: Benefit from our free remote training sessions. For on-site support, we offer customizable solutions with negotiable costs.
Q6: What lead time can be expected for delivery?
Answer: Standard products are delivered within 30 days, while customized orders have a lead time of 60-90 days, depending on complexity.
Q7: What shipping methods are available, and how can orders be tracked?
Answer: We offer sea and express shipping. A tracking number and link are provided for your convenience immediately after the shipment.
Q8: How are products packaged to prevent rust during sea shipping?** 
Answer: Our packaging is robust, featuring anti-rust oil, vacuum sealing, sturdy wooden crates, and desiccants to ensure products arrive in pristine condition.* 
Q9: Do you accept customized orders?
Answer: We welcome OEM requests. Please submit your detailed drawings or specifications, and we will provide a competitive quote.
Q10: How can you obtain the latest product catalog? For further inquiries, you're welcome to reach out.