Company Details

  • Hejian Deris Petroleum Drilling Equipment Co.,Ltd.

  •  [Hebei,China]
  • Business Type:Distributor/Wholesaler , Manufacturer , Retailer , Trade Company
  • Main Mark: Africa , Americas , Asia , Caribbean , East Europe , Europe , Middle East , North Europe , Oceania , Other Markets , West Europe , Worldwide
  • Exporter:91% - 100%
  • Certs:ISO9001, API, CE
  • Description:Drill Collar,Standard Drill Collar,Handling Drill Collar
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Drill Collar

Product categories of Drill Collar, we are specialized manufacturers from China, Drill Collar, Standard Drill Collar suppliers/factory, wholesale high-quality products of Handling Drill Collar R & D and manufacturing, we have the perfect after-sales service and technical support. Look forward to your cooperation!
China Drill Collar Suppliers

Drill Collar

Hejian Deris can supply Non-magnetic Drill Collar, Spiral Drill Collar, and Slick Drill Collar as per customers` requirements. Designed and manufactured strictly according to API Spec 7-1.

Drill Collars are one of the parts of a drill`s string. Drill for the Collars is meant to provide weight for drilling purposes. The Drill Collars are thick walled tube like pieces that are machined from solid steel bars, although they are often made from plain carbon steel or the non magnetic alloy of copper and steel or other premium alloys that are non magnetic in nature. Drill collar has bars of solid steel that are drilled from one end to the other to provide a passage for pumping the drilling fluids through the collar.

Main Technical Parameters

Drill Collar Thread

OD

ID

Length




mm

in

mm

in

mm


NC31-41(27/8IF)

104.8

4 1/8

50.8

2

9150


NC35-47

120.7

4 3/4

50.8

2

9150


NC38-50(31/2IF)

127

5

57.2

2 1/4

9150


NC44-60

152.4

6

57.2

2 1/4

9150or9450


NC44-60

152.4

6

71.4

2 13/16

9150or9450


NC44-62

158.8

6 1/4

57.2

2 1/4

9150or9450


NC46-62(4IF)

158.8

6 1/4

71.4

2 13/16

9150or9450


NC46-65(4IF)

165.1

6 1/2

57.2

2 1/4

9150or9450


NC46-65(4IF)

165.1

6 1/2

71.4

2 13/16

9150or9450


NC46-67(4IF)

171.4

6 3/4

57.2

2 1/4

9150or9450


NC50-67(41/2IF)

171.4

6 3/4

71.4

2 13/16

9150or9450


NC50-70(41/2IF)

177.8

7

57.2

2 1/4

9150or9450


NC50-70(41/2IF)

177.8

7

71.4

2 13/16

9150or9450


NC50-72(41/2IF)

184.2

7 1/4

71.4

2 13/16

9150or9450


NC56-77

196.8

7 1/4

71.4

2 13/16

9150or9450


NC56-80

203.2

8

71.4

2 13/16

9150or9450


65/xREG

209.6

8 1/4

71.4

2 13/16

9150or9450


NC61-90

228.6

9

71.4

2 13/16

9150or9450


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