API 7-1 Drill Collar for Drilling Operations

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

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  • API 7-1 Drill Collar for Drilling Operations
  • API 7-1 Drill Collar for Drilling Operations
  • API 7-1 Drill Collar for Drilling Operations
  • API 7-1 Drill Collar for Drilling Operations
  • API 7-1 Drill Collar for Drilling Operations
  • API 7-1 Drill Collar for Drilling Operations
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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
API 7-1 Drill Collar for Drilling Operations
API 7-1 Drill Collar for Drilling Operations
API 7-1 Drill Collar for Drilling Operations
 
 
Drill Collar

-Purpose: Designed to add substantial weight above the drill bit, this essential component ensures that the bit remains in constant contact with the geological formation. By providing crucial stability to the drill string, it enhances the precision and efficiency of drilling operations.

-Specifications:
1) Size: Available in a range of outer diameters from 3-1/8" to 11", with standard lengths precisely measured at 31 feet, catering to various drilling needs.
2) Material: Expertly crafted from high-yield strength alloy steel, ensuring durability and reliability under demanding conditions.
3) Weight: Notably heavier than typical drill pipes, with a specific gravity approximately around 7.8, providing the necessary downward force for effective drilling.
4) Thread Connections: Compatible with API Regular or other premium thread options, ensuring secure and versatile connectivity.

-Features:
1) Incorporates spiral grooves ingeniously designed to prevent differential sticking, enhancing operational fluidity.
2) Offers non-magnetic drill collars, essential for use with sensitive directional tools, ensuring accuracy in navigational drilling tasks.
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 Operations
 
 
 
 
API 7-1 Drill Collar for Drilling OperationsAPI 7-1 Drill Collar for Drilling Operations
 

 

 
 
 
 

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