API 7-1 Drill Collar for Drilling String

Product Details
Customization: Available
Customized: Customized
Surface Treatment: Painting
Diamond Member Since 2021

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  • API 7-1 Drill Collar for Drilling String
  • API 7-1 Drill Collar for Drilling String
  • API 7-1 Drill Collar for Drilling String
  • API 7-1 Drill Collar for Drilling String
  • API 7-1 Drill Collar for Drilling String
  • API 7-1 Drill Collar for Drilling String
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Basic Info.

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
843143
Production Capacity
1000pieces/Year

Product Description

DRILL COLLAR - The Backbone of Your Drilling Operations!
API 7-1 Drill Collar for Drilling String
API 7-1 Drill Collar for Drilling String
API 7-1 Drill Collar for Drilling String
 
 
Drill Collar - Elevate Your Drilling Efficiency with Our Advanced Technology!

- Purpose: Skillfully engineered to add essential weight to the drill bit, ensuring constant contact with the formation, while seamlessly providing robust stability to the entire drill string.

- Specifications: Designed to meet the diverse needs of the drilling industry, our specifications ensure unmatched reliability and performance.
1) Size: Available with outer diameters ranging impressively from 3-1/8" to 11", and featuring standard lengths of 31 feet, tailored to suit your specific drilling requirements.
2) Material: Crafted from high-yield strength alloy steel, our drill collars promise durability and strength even in the most demanding drilling environments.
3) Weight: Typically engineered to be heavier than standard drill pipes, with a specific gravity of approximately 7.8, guaranteeing optimal performance.
4) Thread Connections: Equipped with API Regular or premium thread connections, providing versatility and reliability for all your drilling needs.

- Features: Packed with innovative features ensuring productivity and safety.
1) Spiral grooves meticulously designed to prevent differential sticking, enhancing efficiency and operational smoothness.
2) Non-magnetic drill collars, crucial for sensitive directional tools, ensuring precision and accuracy in complex drilling operations.
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
 
 
 
API 7-1 Drill Collar for Drilling String
 
 
 
 
API 7-1 Drill Collar for Drilling StringAPI 7-1 Drill Collar for Drilling String
 

 

 
 
 
 

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