API 7-1 Nmdc Non-Magnetic Nc38 Drill Pipe Drill Collar for Well Drilling

• Customization: Available
• After-sales Service: Warranty
• Warranty: 1 Year
• Model NO.: API SPEC 7-1
• Certification: API
• Surface Treatment: Painting
• 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
• 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: Expertly crafted to add substantial weight to the drill bit, this essential tool ensures continuous contact with the geological formation, while simultaneously enhancing the stability of the entire drill string.

-Specifications:
1) Size: Engineered with precision, offering outer diameters ranging from 3-1/8" to 11", alongside standard lengths extending to an impressive 31 feet.
2) Material: Constructed from top-grade alloy steel, renowned for its exceptional high yield strength, ensuring durability and performance under intense conditions.
3) Weight: Designed to be significantly heftier than standard drill pipe, with a specific gravity approximately at 7.8, ensuring superior functionality.
4) Thread Connections: Available in API Regular or other sophisticated premium threads, providing versatile connectivity options.

-Features:
1) Spiral grooves: Strategically incorporated to effectively prevent differential sticking, enhancing operational efficiency.
2) Non-magnetic drill collars: Specially crafted for use with sensitive directional tools, minimizing interference and maximizing precision.

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