Directional Drilling API Drill Collar Spiral Drill Collar and Non Magnetic Drill Collar

• Customization: Available
• Customized: Customized
• Surface Treatment: Spray
• Model NO.: Drill Collar
• Type: Non-magnetic Drill Collar
• Material: High Manganese Steel
• Weight (Kg): 500
• Working Process: Machining
• Size: 2 3/8-10 3/4′′
• Color: Red
• Appearance: Smooth
• Warranty of Core Components: 1 Year
• Item: API Oil
• Video Outgoing-Inspection: Provided
• Applicable Industries: Energy & Mining
• Marketing Type: New Product 2020
• Core Components: Engine
• Advantage: Prices
• Product Name: Q2 3/8-10 3/4-35 Workover Rig Tong for Oil Field
• Application: Oil Field
• Machinery Test Report: Provided
• Transport Package: Plywood Case
• Specification: Drill Collar
• Trademark: Goldenman
• Origin: China
• Production Capacity: 10000 Set/Sets Per Month
• Package Size: 75.00cm * 70.00cm * 60.00cm
• Package Gross Weight: 3000.000kg

Product Description

DRILL COLLAR

 

 

1. Material of API 7-1 Non-Magnetic Drill Collar Slick Drill Collar OD 79.4mm to 279.4mm: Crafted from high-quality 4145H/4145H mod or advanced Non-magnetic materials.
2. Standard: Conforming to prestigious standards API7-1, NS-1.
A. Slick Drill Collar
Note: The drill collar is primarily designed to deliver optimal bit weight to the drill bit, ensuring the drill pipe remains in tension. Specifically, the drill collar excels in
maintaining drill bit centralization and guiding the hole trajectory due to its substantial rigidity. Each Drill Collar is meticulously crafted in strict adherence to API Spec7-1 and
SY5411 standards.
B. Spiral Drill Collar
Note: The spiral design of the drill collar minimizes contact with the borehole, effectively preventing bit sticking caused by differential
pressure. These drill collars are precisely manufactured in compliance with API Spec7-1 and SY5144 standards.
C. Spiral Drill Collar With Elevator Groove And Slip Groove
Note: Featuring elevator and slip grooves on the box thread face, the slick or spiral drill collar serves as a reliable lifting
sub and safety slip when pulling out. All technical parameters for these features comply with API SPEC7-1. Optional hardbanding is available upon customer request.
D. Non-magnetic Drill Collar
Experience enhanced structural integrity with our cold rolled finish on both the ID and OD surfaces, achieved through a unique technical process that augments resistance to stress, corrosion, and cracking, while significantly enhancing mechanical performance.
High Quality API 7-1 NS-1 Non-Magnetic Drill Collar
Specifications for API 7-1 Non-Magnetic Drill Collar Slick Drill Collar OD 79.4mm to 279.4mm

 

 

 

 

Connections	OD mm	ID mm	Length mm
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	127.0	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	254.0	76.2	9150 or 9450
8 5/8REG	279.4	76.2	9150 or 9450