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The Company possesses a complete set of petroleum drilling tool production lines and mainly produces large deep-hole boring machines, ordinary lathes, medium frequency heat treatment production line, spiral mill/lathe, CNC lathes, mill, printer, etc.

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Product Details

The Company possesses a complete set of petroleum drilling tool production lines and mainly produces large deep-hole boring machines, ordinary lathes, CNC lathes, mill, printer, etc. The Company has established a dedicated testing center that is equipped with domestic and overseas advanced precision testing equipment and sound testing means to control the whole process of products and strictly abides by API 7-1, API 7-2, SY/T5144 and SY/T5146 standards to ensure that all performance indexes of the Company’s products can meet international standards and standards of American Petroleum Institute (API). The Company has passed IS09001 quality management system certification and HSE management system certification and has obtained the right to use the logos of API petroleum drilling tools. Main drilling tools include non-magnetic drill collar, non-magnetic pressure drill pipe, ordinary drill collar, integrated heavy weight drill pipe, adapter, etc. The annual production capacity is 10,000 pieces. The Company can also machine products according to special requirements of users. 

 

● Hexagonal pipe size specifications

Kelly size

Length drivesection

Length overall

Length drivesection

LD

Standard

LD

Optional

L

Standard

L

Optional

DFL

Across flate

DC

Across cornere

DCC

Across cornere

RC

Radlue

RCC

Radlue

t

Wall Thickness Eccentric bore

76.2

3

11280

 

12190

 

76.2

85.7

85.73

6.4

42.9

12.1

88.9

31/2

11280

 

12190

 

88.9

100.8

100.0

6.4

50.0

13.3

108.0

41/4

11280

15540

12190

16460

108.0

122.2

121.44

9.9

60.7

15.9

133.4

51/4

11280

15540

12190

16460

133.4

151.6

149.86

9.9

75.0

15.9

133.4

51/4

11280

15540

12190

16460

133.4

175.4

171.45

15.9

85.7

15.88

152.4

6

11280

15540

12190

16460

152.4

173.0

173.02

9.5

86.5

15.9

152.4

6

11280

15540

12190

16460

152.4

173.0

173.02

9.5

86.5

15.9

 

Upper box connection

Lower pin connection

Inside diameter

Thread specification and type

OD

BevelDiameter

Label

DLR

Out diameter

 

LL

DF

BevelDiameter

Standard

Optional

DU

Standard

DU

Optional

LU

DF

Standard

DF

Optional

65/8REG

41/2REG

196.9

146.1

406.4

186.1

134.5

NC26

85.7

508

82.9

31.8

65/8REG

41/2REG

196.9

146.1

406.4

186.1

134.5

NC31

104.8

508

100.4

44.5

65/8REG

41/2REG

196.9

146.1

406.4

186.1

134.5

NC38

120.7

508

116.3

57.2

65/8REG

 

196.9

 

406.4

186.1

 

NC46

158.8

508

145.3

71.4

65/8REG

 

196.9

 

406.4

186.1

 

NC50

161.9

508

154.0

71.4

65/8REG

 

196.9

 

406.4

186.1

 

51/2FH

177.8

508

170.7

82.6

65/8REG

 

196.9

 

406.4

186.1

 

NC56

177.8

508

171.1

82.6

 

 

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