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KELLY
0.0 Yuan 0.0 Yuan
Product description

 

KELLY

The square and hexagonal Kelly is available up to 46 feet long. The Kelly is made from 4145H modified alloy bars that are quenched and tempered full length. A hardness range of 285 to 341 BHN and a minimum impact value of 40ft-lbs are maintained one inch below the surface at room temperature. All ends and center drive sections-trepanned to provide true bores. They are drifted to API specifications, and all connections are machined. The Kelly that we supply is stamped with the API monogram.

Size and Type of Square Kelly (in)

Kelly Size

Length of Drive Section
m

Length Overall
m

Drive Section

Standard
LD

Optional
LD 

Standard
L

Optional
L

Across Flats
DFL

Across
Corners
EC

Across
Corners
DCC

Radius
RC

Radius
RCC

Min. Wall ECC. Bore t

63.5

(2 1/2)

11280

 

12190

 

63.5

83.3

82.55

7.9

41.3

11.43

76.2

(3)

11280

 

12190

 

76.2

100.0

98.43

9.5

49.2

11.43

88.9

(3 1/2)

11280

 

12190

 

88.9

115.1

112.70

12.7

56.4

11.43

108.0

(4 1/4)

11280

15540

12190

16460

108.0

141.3

139.70

12.7

69.9

12.07

108.0

(4 1/4)

11280

15540

12190

16460

108.0

141.3

139.70

12.7

69.9

12.07

133.4

(5 1/4)

11280

15540

12190

16460

133.4

175.4

171.45

15.9

85.7

15.88

133.4

(5 1/4)

11280

15540

12190

16460

133.4

175.4

171.45

15.9

85.7

15.88


(continue)

Kelly Size

Upper Box Connection

Lower Pin Connection

Inside
Diameter d

size and style LH

Outside Diameter

Bevel Diameter

Size and Style

Outside
Diameter
DLR

Length
LL

Bevel Diameter
DF

Standard

Optional

Standard
DU

Optional
DU

LU

DF

DF

63.5

(2 1/2)

(6 5/8)REG

(4
1/2)REG

196.9

146.1

406.4

186.1

134.5

NC26
(23/8IF)

85.7

508

82.9

31.8

76.2

(3)

(6 5/8)REG

(4
1/2)REG

196.9

146.1

406.4

186.1

134.5

NC31
(27/8IF)

104.8

508

100.4

44.5

88.9

(3 1/2)

(6 5/8)REG

(4
1/2)REG

196.9

146.1

406.4

186.1

134.5

NC38
(31/2IF)

120.7

508

116.3

57.2

108.0

(4 1/4)

(6 5/8)REG

(4
1/2)REG

196.9

146.1

406.4

186.1

134.5

NC46
(4IF)

158.8

508

145.3

71.4

108.0

(4 1/4)

(6 5/8)REG

(4
1/2)REG

196.9

146.1

406.4

186.1

134.5

NC50
(41/2IF)

161.9

508

154.0

71.4

133.4

(5 1/4)

(6 5/8)REG

 

196.9

 

406.4

186.1

 

5 1/2FH

177.8

508

170.7

82.6

133.4

(5 14)

(6 5/8)REG

 

196.9

 

406.4

186.1

 

NC56

177.8

508

171.1

82.6

 

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QINGDAO OILRIG TRADE CO., LTD. has been dedicating itself to export business of oilfield equipment and components to North/South America, Europe, Middle East, South East Asia .

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OILRIG warrants our products for a period of one year to be free from defective material and workmanship. OILRIG's products equal or exceed the quality and tolerances of the products provided by the original manufacturer. 

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