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Quick Details

  • Place of Origin: Jiangsu, China (Mainland)
  • Brand Name: YAOU
  • Model Number: NC-23
  • Type: Drill Collar
  • Machine Type: Drilling Tool
  • Certification: API
  • Material: Carbon Steel
  • Processing Type: Forging
  • Use: Well Drilling

Packaging & Delivery

Packaging Details: standard export packing

The drill collar is mainly used to provide bit weight to drill bit so that drill pipe is in tension. Especially drill collar can keep drill bit centralized and hole track by large rigidity. MS brand drill collar are manufactured strictly from API Spec.7 and SY5144 standard.

Technical specification and parameters

 

 

Drill Collar Number.

O.D.

I.D.

Length
(mm)

Bevel Diameter

Refbend g Strength ratio..

mm

in

mm

in

NC23-31

79.4

3 1/8

31.8

1 1/2

9150

76.2

2.57:1

NC26-35(2 3/8 IF)

88.9

3 1/2

38.1

1 1/2

9150

82.9

2.42:1

NC31-41(2 7/8 IF)

104.8

4 1/8

50.8

2

9150

100.4

2.43:1

NC35-47

120.6

4 3/4

50.8

2

9150

114.7

2.58:1

NC38-50(3 1/2 IF)

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&9450

144.5

2.49:1

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

6 1/4

71.4

2 13/16

9150&9450

150.0

2.63:1

NC46-65(4IF)

165.1

6 1/2

57.2

2 1/4

9150&9450

154.8

2.76:1

NC46-65(4IF)

165.1

6 1/2

71.4

2 13/16

9150&9450

154.8

3.05:1

NC46-67(4IF)

171.4

6 3/4

57.2

2 1/4

9150&9450

159.5

3.18:1

N50-67(4 1/2 IF)

171.4

6 3/4

71.4

2 13/16

9150&9450

159.5

2.37:1

NC50-70(4 1/2 IF)

177.8

7

57.2

2 1/4

9150&9450

164.7

2.54:1

NC50-70(4 1/2 IF)

177.8

7

71.4

2 13/16

9150&9450

164.7

2.73:1

NC50-72(4 1/2 IF)

184.2

7 1/4

71.4

2 13/16

9150&9450

169.5

3.12:1

NC56-77

196.8

7 3/4

71.4

2 13/16

9150&9450

185.3

2.70:1

NC56-80

203.2

8

71.4

2 13/16

9150&9450

190.1

3.02:1

6 5/8 REG

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

212.6

3.17:1

7 5/8 REG

241.3

9 1/2

76.2

3

9150&9450

223.8

2.81:1

NC70-97

247.6

9 3/4

76.2

3

9150&9450

232.8

2.57:1

NC70-100

254

10

76.2

3

9150&9450

237.3

2.81:1

8 5/8 REG

279.4

11

76.2

3

9150&9450

266.7

2.84:1

 

 

 

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