API Standard Oilfield Non-Magnetic Drill Collar

• Customization: Available
• Customized: Customized
• Surface Treatment: Painting
• Model NO.: API SPEC 7-1
• Type: Spiral Drill Collar
• Standard: API
• Usage: Oil Mining, Well Drilling
• Material: AISI4145h
• Weight (Kg): 200
• Condition: New
• Local Service Location: None
• Keyword: Kelly Drill Pipe
• Use: Well Drilling
• Dimension(L*W*H): 2000*150*150mm
• End Protector: Plastic Pipe Cap
• Certification: API
• Warranty of Core Components: 1 Year
• Surface: Painting
• Applicable Industries: Energy & Mining
• Marketing Type: Ordinary Product
• Core Components: Bearing, Gear, Pump
• Features: Safe and Stable
• Machinery Test Report: Provided
• Transport Package: Iron Shelves
• Specification: Up to the quantities
• Trademark: GOLDENMAN
• Origin: Shandong, China
• HS Code: 8431431000
• Production Capacity: 1000pieces/Year
• Package Size: 100.00cm * 100.00cm * 100.00cm
• Package Gross Weight: 233.000kg

Product Description

DRILL COLLAR

 

 

Drill Collar

-Purpose: This robust component significantly enhances drilling efficiency by adding essential weight to the drill bit. It ensures the drill bit remains in constant contact with the formation, thus providing exceptional stability to the drill string throughout the drilling process.

-Specifications:
1) Size: Boasting a versatile range of outer diameters from 3-1/8" to 11", our drill collars come in standard lengths of 31 feet, perfectly tailored to various drilling demands.
2) Material: Crafted from premium alloy steel, these collars feature remarkable high yield strength, ensuring durability and performance even under the most challenging drilling conditions.
3) Weight: Designed to be typically heavier than standard drill pipes, with a specific gravity around 7.8, providing the necessary heft for effective drilling operations.
4) Thread Connections: Featuring API Regular or other industry-leading premium threads, these connections ensure reliable and secure joint integrity.

-Features:
1) Spiral grooves: Engineered to prevent differential sticking, these grooves enhance operational efficiency and reduce downtime, improving overall drilling productivity.
2) Non-magnetic drill collars: Specially designed for use with sensitive directional tools, these non-magnetic options ensure precise and interference-free directional drilling.

Drill collar specifications
Nominal Size	OD		ID		Length	Bevel Dia. mm	Bending Strength Ratio
	mm	in	mm	in	mm
NC31-41(2-7/8IF)	104.8	4-1/8	50.8	2	9150	100.4	2.43:1
NC35-47	120.7	4-3/4	50.8	2	9150	114.7	2.58:1
NC38-50(3-1/2IF)	127	5	57.2	2-1/4	9150	121	2.38:1
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	158.8	71.4	2-13/16	9150/9450	150	2.63:1
NC50-70(4-1/2IF)	177.8	7	57.2	2-1/4	9150/9450	164.7	2.54:1
NC56-77	196.8	7-3/4	71.4	2-13/16	9150/9450	185.3	2.70:1
6-5/8REG	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	212.7	3.17:1
We can supply full size drill collar with API 5D/5DP, Please leave a message for consultation.

 

Drill pipe
Size(in)	OD of Pipe Body(mm)	Wall Thickness of Pipe Bodymm
2.3/8" to 6.5/8"	60.32-168.28	7.11-12.70