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API 7-1 Drill Collar

API 7-1 Drill Collar

Negotiable /Piece

Min.Order:1 Piece

Supply Ability:
100000000 Piece / Pieces per Month
Port:
China port
Payment Terms:
T/T L/C D/P D/A Credit Card PayPal

Quick Details View All >

Place of Origin:
Shandong, China
Brand Name:
Sinotai
Type:
Drill Collar
Machine Type:
Drilling Tool
Certification:
API
Material:
Carbon Steel

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

API 7-1 Drill Collar
Material: AISI 4145H modified steel
Connections: phosphate-coated or copper plated

API 7-1  Drill Collar

Features:

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

         All connections are phosphate-coated or copper plated to improve resistance to corrosion.  

         We offers optional slip and elevator recesses to improve handling efficiency and safety. Unless otherwise specified, slip and elevator recesses are machined in compliance with API spec 7-1 guidelines.

         Our company offers steel, cast steel and plastic steel thread protectors for its drill stem products.

         We also supply spiral drill collars.Spiral drill collars utilize spiral grooves to make mud circulate freely around the drill collar to equalize pressure and prevent a seal from forming.

Specifications:

Drill Collar Number

Outside Diameter

Inside Diameter

Length

mm

Bevel Diameter DF mm

Ref.Bend g

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

9150or9450

144.5

2.49:1

NC44-62

158.8

6 1/4

57.2

2 1/4

9150or9450

149.2

2.91:1

NC46-62(4IF)

158.8

6 1/4

71.4

2 13/16

9150or9450

150.0

2.63:1

NC46-65(4IF)

165.1

6 1/2

57.2

2 1/4

9150or9450

154.8

2.76:1

NC46-65(4IF)

165.1

6 1/2

71.4

2 13/16

9150or9450

154.8

3.05:1

NC46-67(4IF)

171.4

6 3/4

57.2

2 1/4

9150or9450

159.5

3.18:1

NC50-67(4 1/2IF)

171.4

6 3/4

71.4

2 13/16

9150or9450

159.5

2.37:1

NC50-70(4 1/2IF)

177.8

7

57.2

2 1/4

9150or9450

164.7

2.54:1

NC50-70(4 1/2IF)

177.8

7

71.4

2 13/16

9150or9450

164.7

2.73:1

NC50-72(4 1/2IF)

184.2

7 1/4

71.4

2 13/16

9150or9450

169.5

3.12:1

NC50-77

196.8

7 3/4

71.4

2 13/16

9150or9450

185.3

2.70:1

NC50-80

203.2

8

71.4

2 13/16

9150or9450

190.1

3.02:1

6 5/8REG

209.6

8 1/4

71.4

2 13/16

9150or9450

195.7

2.93:1

NC61-90

228.6

9

71.4

2 13/16

9150or9450

212.7

3.17:1

7 5/8REG

241.3

9 1/2

76.2

3

9150or9450

223.8

2.81:1

NC70-97

247.6

9 3/4

76.2

3

9150or9450

232.6

2.57:1

NC70-100

254.0

10

76.2

3

9150or9450

237.3

2.81:1

8 5/8REG

279.4

11

76.2

3

9150or9450

266.7

2.84:1

API 7-1 Drill CollarAPI 7-1 Drill Collar

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/

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Quick Details

Place of Origin:
Shandong, China
Brand Name:
Sinotai
Type:
Drill Collar
Machine Type:
Drilling Tool
Certification:
API
Material:
Carbon Steel
Processing Type:
Forging
Use:
Well Drilling