Rugao Yaou Import & Export Trade Co., Ltd.
Main products:Drill Collar,Power Tong,Valve,Manual Tong,DDZ Elevator
Products
Contact Us
  • Contact Person : Mr. Xue aihong
  • Company Name : Rugao Yaou Import & Export Trade Co., Ltd.
  • Tel : 86-513-87635480
  • Fax : 86-513-87632623
  • Address : Jiangsu,Rugao,Room 907 #13 Jinjiuhuafu Ninghai RD.
  • Country/Region : China
  • Zip : 226500

Spiral drill collar

Spiral drill collar
Product Detailed
The drill collar is mainly used to provide bit weight to drill bit so that drill pipe is in tension.

Spiral drill collar is used to reduce contact area with hole so as to avoid efficiently bit sticking from differential pressure. brand spiral drill collars are manufactured strictly according to API Spec.7 and Standard SY5144, all mechanical properties meet with above standards.......Sizes for drill collar spiral groove

O.D.

Cutting depth

Lead±25.4

Mm

in

A(mm)

B(mm)

mm

86

3 3/8

3.5±0.79

 

679

98.4

3 7/8

4.0±0.79

 

914

101.6111.1

44 1/8

4.8±0.79

 

914

114.3130.2

4 1/25 1/8

5.6±0.79

 

965

133.4146.1

5 1/45 3/4

6.4±0.79

 

1067

149.2161.9

5 7/86 3/8

7.1±1.59

 

1067

165.1177.8

6 1/27

7.9±1.59

 

1168

181.0200.0

7 1/87 7/8

8.7±1.59

5.6±0.79

1626

203.2225.4

88 7/8

9.5±1.59

6.4±0.79

1727

228.6250.8

99 7/8

10.3±2.37

7.1±1.59

1829

254.0276.2

1010 7/8

11.1±2.37

7.9±1.59

1930

279.4

11

11.9±2.37

8.7±1.59

2032

Spiral drill collar



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