English
NC23-31 Drill Collar

NC23-31 Drill Collar

Negotiable /Piece

Min.Order:1 Piece

Supply Ability:
5000 Piece / Pieces per Month
Port:
Shanghai Tianjin Qingdao
Payment Terms:
T/T Credit Card PayPal

Quick Details View All >

Place of Origin:
Shandong, China
Brand Name:
Sinotai
Model Number:
NC23-31
Type:
Other, Reverse Circulation Junk Magnets
Machine Type:
Drilling Equipment
Certification:
API

Sinotai Petroleum Equipment Co., Ltd.

Credit Member 4 years
Business Type: Trading Company
Shandong China
Main Products: Petroleum Equipments
View more products Contact Supplier

Product Details

Specifications

1.NC23-31 Drill Collar
2.Easy operation
3.API standard
4.AISI 4145H modified steel

  NC23-31 Drill Collar

 

1. Drill collars are manufactured from AISI 4145H modified steel, and are supplied in the "as rolled" surface finish condition. Alternative surface finishes are available. 

2.Drill collars are trepanned and drifted to API Spec 7-1. Full-length heat-treatment processes ensure that mechanical properties meet or exceed API Spec 7-1 requirements.

3.A hardness range of 285-341, Brinell hardness and Charpy "V" notch minimum impact strength of 40 ft-lb at 70 F are guaranteed one inch below the surface.

 

 

The main technical performance and specification for drill collar:

Model of connection

OD

ID

Length

mm

DFmm

Bending Strength Ratio

 

mm

in

mm

in

 

 

 

NC23-31

79.4

3 1/8

31.8

1 1/4

9150

76.2

2.57:1

NC26-35(2 3/8IF)

88.9

3 1/2

38.1

1 1/2

9150

82.9

2.42:1

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

NC3850(3 1/2IF)

127.0

5

57.2

2 1/4

9150

121.0

2.38:1

NC44-60

152.4

6

57.2

2 1/4

9150 or 9450

144.5

2.49:1

NC44-62

158.8

6 1/4

57.2

2 1/4

9150 or 9450

149.2

2.91:1

NC46-62(4IF)

158.8

6 1/4

71.4

2 13/16

9150 or 9450

150.0

2.63:1

NC46-65(4IF)

165.1

6 1/2

57.2

2 1/4

9150 or 9450

154.8

2.76:1

NC46-65(4IF)

165.1

6 1/2

71.4

2 13/16

9150 or 9450

154.8

3.05:1

NC46-67(4IF)

171.4

6 3/4

57.2

2 1/4

9150 or 9450

159.5

3.18:1

NC50-67(4 1/2IF)

171.4

6 3/4

71.4

2 13/16

9150 or 9450

159.5

2.37:1

NC50-70(4 1/2IF)

177.8

7

57.2

2 1/4

9150 or 9450

164.7

2.54:1

NC50-70(4 1/2IF)

177.8

7

71.4

2 13/16

9150 or 9450

164.7

2.73:1

NC50-72(4 1/2IF)

184.2

7 1/4

71.4

2 13/16

9150 or 9450

169.5

3.12:1

NC50-77

196.8

7 3/4

71.4

2 13/16

9150 or 9450

185.3

2.70:1

NC50-80

203.2

8

71.4

2 13/16

9150 or 9450

190.1

3.02:1

                                                                       NC23-31 Drill Collar

 

 

Skype: sally_sinotai

Mob: 86-15154675163

 

 

 

Contact Supplier

Ms. Herish Kuo Vice General Manager Chat Now
Telephone
86-546-8300512
Mobile
18654653153
Fax
86-546-8308512
Address
No.67 Fuqian Road Shandong
Showroom
https://sinotai.goldsupplier.com/

You May Like

New Products

Find Similar Products By Category

Machinery > Energy & Mineral Equipment > Mining Machinery > Mining Machine Parts
Categories
Contact Now Get lowest price
Hi~

Quick Details

Place of Origin:
Shandong, China
Brand Name:
Sinotai
Model Number:
NC23-31
Type:
Other, Reverse Circulation Junk Magnets
Machine Type:
Drilling Equipment
Certification:
API
Material:
Stainless Steel
Processing Type:
Forging
Use:
Well Drilling