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Shaanxi Gaoton Petroleum Machinery Co.,Ltd

Tel:0086-29-87872212

Fax:0086-29-87872212

Email:sales@sxgtpm.com

Skype:celiawangyanatxa

Mobile:008613402943512


Drill Collar ( Slick Drill Collar, Spiral Drill Collar, Non-Magnetic Drill Collar, Pony Drill Collar )

Drill Collar ( Slick Drill Collar, Spiral Drill Collar, Non-Magnetic Drill Collar, Pony Drill Collar  )

Material: AISI 4145H Mod.
Type: Slick Drill Collar, Spiral Drill Collar and Non-Magnetic Drill Collar
Standard: API, NS-1
Hard Banding: Arnco 100XT, Arnco 300XT, TCS-8000, etc.
Length: 9150--9450 mm
Slip and elevator grooves, hand banding could be produced as per the customers’ requirements.

Detailed description

Drill Collar


Drill Collar is shorted for DC. It is the basic component in the BHA which provides weight on the bit for drilling and keeps the drill string in tension.


Material: AISI 4145H Mod.

Type: Slick Drill Collar, Spiral Drill Collar and Non-Magnetic Drill Collar

Standard: API, NS-1

Hard Banding: Arnco 100XT, Arnco 300XT, TCS-8000, etc. 

Length: 9150--9450 mm

Slip and elevator grooves, hand banding could be produced as per the customers’ requirements.


Function:

1.To increase the weight on the drilling bit

2.To ensure the necessary strength of compression

3.To reduce the vibration of the drill bit, swing, and beating, so that the drill bit working smoothly

4.To control the deviation



Please specify when ordering:

●Drill collar OD and ID;

●Overall length;

●Connections required (size and type);

●Type: Slick Drill Collar, Spiral Drill Collar or Non-Magnetic Drill Collar

●Stress relief groove

●Slip and / or Elevator Recess

●Hard banding


Technical Parameters--Drill Collar


    Number and connection table

 Outside Diameter

   Inside Diameter

 

Length mm


Bevel Diameter   mm


Bending 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(31/2IF)

127

      5

  57.2

   2 1/4

     9150

121

2.38:1

NC44-60

152.4

      6

  57.2

   2 1/4

     9150 or 9450

144.5

2.49:1

NC44-60

152.4

      6

  71.4

   2 13/16

     9150 or 9450

144.5

2.84:1

NC44-62

158.8

  6 1/4

  57.2

   2 1/4

     9150 or 9450

149.2

2.91:1

NC44-62(4IF)

158.8

  6 1/2

  71.4

   2 13/16

     9150 or 9450

150

2.63:1

NC44-65(4IF)

165.1

  6 1/2

  57.2

   2 1/4

     9150 or 9450

154.8

2.76:1

NC44-65(4IF)

165.1

  6 1/2

  71.4

   2 13/16

     9150 or 9450

154.8

3.05:1

NC44-67(4IF)

171.4

  6 3/4

  57.2

   2 1/4

     9150 or 9450

159.5

3.18:1

NC50-672(41/2IF)

171.4

  6 3/4

  71.4

   2 13/16

     9150 or 9450

159.5

2.37:1

NC50-70(41/2IF)

177.8

    7

  57.2

   2 1/4

     9150 or 9450

164.7

2.54:1

NC50-70(41/2IF)

177.8

    7

  71.4

   2 13/16

     9150 or 9450

164.7

2.73:1

NC50-72(41/2IF)

184.2

  7 1/4

  71.4

   2 13/16

     9150 or 9450

169.5

3.21:1

NC56-77

196.8

  7 3/4

  71.4

   2 13/16

     9150 or 9450

185.3

2.70:1

NC56-80

203.2

    8

  71.4

   2 13/16

     9150 or 9450

190.1

3.02:1

6 5/8 REG

209.6

  8 1/4

  71.4

   2 13/16

     9150 or 9450

195.7

2.93:1

NC61-90

228.6

    9

  71.4

   2 13/16

     9150 or 9450

212.7

3.17:1

7 5/8 REG

241.3

  9 1/2

  76.2

   3

     9150 or 9450

223.8

2.81:1

NC70-97

247.6

  9 3/4

  76.2

   3

     9150 or 9450

232.6

2.57:1

NC70-100

254

  10

  76.2

   3

     9150 or 9450

237.3

2.81:1

8 5/8 REG

279.4

   11

  76.2

   3

     9150 or 9450

266.7

2.84:1

Slips and elevator grooves can be produced upon the customers' requirement.

 

If you have any further requirements, please feel free to contact us by sales@sxgtpm.com

Within those famous China oil and gas drill collar manufacturers, GAOTON is a professional such supplier, producer and provider, welcome to wholesale petroleum and oilfield API drill collar from our factory.

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