河南神龙石油钻具有限公司

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钻具
无磁钻铤
无磁稳定器
无磁随钻测井配件
整体螺旋扶正器
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整体加重钻杆
方钻杆
金刚石钻头
短节
冶金备件
轧辊
MPM限动芯棒

  产品 >> 方钻杆

四方钻杆和六方钻杆

 

    我们提供四方钻杆和六方钻杆,可以提供最长为16米的方钻杆。神龙方钻杆由经过全长淬火和回火的AISI 4145H合金棒制成。根据ASTM A370,产品皮下一英寸的硬度范围为285-341布氏硬度,夏比冲击功大于等于54J。为提高产品的抗摩擦能力,所有的螺纹都涂上了API螺纹脂。所有用于生产方钻杆的棒料都经过了磁粉探伤和超声波探伤。

Square Kelly Drive Section 

1

2

3

4

5

6

7

8

9

10

11

Kelly    size

Length drive
section

Length Overall

Across   flats

Across   Corners

Across   Corners

Radius

Radius

Wall thickness eccentric bore

m

m

Standard

Optional

Standard

Optional

mm

mm

mm

mm

mm

mm

LD

LD

L

L

DFL

DC

DCC

RC

RCC

t

+0.152             -0.127

+0.152             -0.127

+0.152             0

+0.152             0    

 

 

0                       -0.4

±1.6

Ref.   only

min

63.5

11.28

12.19

63.5

83.3

82.55

7.9

41.3

11.43

76.2

11.28

12.19

76.2

100.0

98.42

9.5

49.2

11.43

88.9

11.28

12.19

88.9

115.1

112.70

12.7

56.4

11.43

108.0

11.28

15.54

12.19

16.46

108.0

141.3

139.70

12.7

69.8

12.06

133.4

11.28

15.54

12.19

16.46

133.3

175.4

171.45

15.9

85.7

15.88

                                                 Square Kelly end upsets and connections 

1

2

3

4

5

6

7

8

9

10

11

Kelly      size

Upper box connection

Lower pin connection

 

Label

Outside diameter

Bevel    diameter

Upset length

Label

Outside diameter

Inside diameter

Bevel diameter

Upset length

 

DU

DF

LU

 

DLR

d

DF

LL

±0.8

±0.4

+63.5                0

±0.8

+1.6                0

±0.4

+63.5                0

63.5

Standard

6 5/8REG

196.8

186.1

406.4

NC26

85.7

31.8

83.0

508.0

Optional

4 1/2REG

146.0

134.5

406.4

NC26

85.7

31.8

83.0

508.0

76.2

Standard

6 5/8REG

196.8

186.1

406.4

NC31

104.8

44.4

100.4

508.0

Optional

4 1/2REG

146.0

134.5

406.4

NC31

104.8

44.4

100.4

508.0

88.9

Standard

6 5/8REG

196.8

186.1

406.4

NC38

120.6

57.2

116.3

508.0

Optional

4 1/2REG

146.0

134.5

406.4

NC38

120.6

57.2

116.3

508.0

108.0

Standard

6 5/8REG

196.8

186.1

406.4

NC46

158.8

71.4

145.2

508.0

Standard

6 5/8REG

196.8

186.1

406.4

NC50

161.9

71.4

154.0

508.0

Optional

4 1/2REG

146.0

134.5

406.4

NC46

158.8

71.4

145.2

508.0

Optional

4 1/2REG

146.0

134.5

406.4

NC50

161.9

71.4

154.0

508.0

133.4

Standard

6 5/8REG

196.8

186.1

406.4

5 1/2FH

177.8

82.6

170.6

508.0

Standard

6 5/8REG

196.8

186.1

406.4

NC56

177.8

82.6

171.0

508.0

Hexagonal kelly drive section

1

2

3

4

5

6

7

8

9

10

11

Kelly    size

Length drive
section

Length Overall

Across   flats

Across   Corners

Across   Corners

Radius

Radius

Wall thickness eccentric bore

m

m

Standard

Optional

Standard

Optional

mm

mm

mm

mm

mm

mm

LD

LD

L

L

DFL

DC

DCC

RC

RCC

t

+0.152             -0.127

+0.152             -0.127

+0.152             0

+0.152             0    

+0.8             0

±0.8

0                       -0.4

±0.8

Ref.   only

min

76.2

11.28

12.19

76.2

85.7

85.72

6.4

42.9

12.06

88.9

11.28

12.19

88.9

100.8

100.00

6.4

50.0

13.34

108.0

11.28

15.54

12.19

16.46

108.0

122.2

121.44

7.9

60.7

15.88

133.4

11.28

15.54

12.19

16.46

133.3

151.6

149.86

9.5

75.0

15.88

152.4

11.28

15.54

12.19

16.46

152.4

173.0

173.03

9.5

86.5

15.88

 

Hexagonal kelly end upsets and connections

 

1

2

3

4

5

6

7

8

9

10

11

Kelly      size

Upper box connection

Lower pin connection

 

Label

Outside diameter

Bevel    diameter

Upset length

Label

Outside diameter

Inside diameter

Bevel diameter

Upset length

 

DU

DF

LU

 

DLR

d

DF

LL

±0.8

±0.4

+63.5                0

±0.8

+1.6                0

±0.4

+63.5                0

76.2

Standard

6 5/8REG

196.9

186.1

406.4

NC26

85.7

31.8

82.9

508.0

Optional

4 1/2REG

146.0

134.5

406.4

NC26

85.7

31.8

82.9

508.0

88.9

Standard

6 5/8REG

196.9

186.1

406.4

NC31

104.8

44.4

100.4

508.0

Optional

4 1/2REG

146.0

134.5

406.4

NC31

104.8

44.4

100.4

508.0

108.0

Standard

6 5/8REG

196.9

186.1

406.4

NC38

120.6

57.2

116.3

508.0

Optional

4 1/2REG

146.0

134.5

406.4

NC38

120.6

57.2

116.3

508.0

133.4

Standard

6 5/8REG

196.9

186.1

406.4

NC46

158.8

76.2

145.2

508.0

Standard

6 5/8REG

196.9

186.1

406.4

NC50

161.9

82.6

154.0

508.0

152.4

Standard

6 5/8REG

196.9

186.1

406.4

5 1/2FH

177.8

88.9

170.6

508.0

Standard

6 5/8REG

196.9

186.1

406.4

NC56

177.8

88.9

171.0

508.0

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