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Square kelly (ВБТ), spliy-type square kelly (BBTS)

 

ВБТ

The kellies are designed to transfer torque from the rotors to the drill strings. Upon customer’s request the kellies can be manufactured with counterclockwise rotation.

Technical performances
Normative documents  Technical Specifications TU 1324-034-48416997-2005, API Spec 7-1
Length, mm

11 300... 16 460

The exclusive Russian manufacturer of split-type kellies with 28 meter length!

Kelly Designation Square Side Ø Channel Outer Ø Tool Joint Thread
Box End Pin End Box End Pin Connection
Var. 1 Var. 2 Var. 1 Var. 2
mm inch mm дюймы mm inch mm inch mminch GOST API GOST API GOST API

VBT-63

63,5

2 1/2

31,8

1 1/4

104,8

4 1/8

120,6

4 3/4

85,7

3 3/8

3-86Л

NC31 LH

3-102Л

NC38 LH

З-73

NC26

VBT-76

76,2

3

44,4

1 3/4

104,8

4 1/8

З-86

NC31

VBT-80

80

3 1/8

50

2   

VBT-89

88,9

3 1/2

57,2

2 1/4

120,6

4 3/4

146

5 3/4

120,6

4 3/4

3-102Л

NС38 LH

3-121Л

4 1/2 FH LH

3-102

NC38

139,7

5 1/2

3-117Л

4 1/2 REG LH

3-118Л

NC44 LH

VBT-108

108

4 1/4

71,4

2 13/16

146,1

5 3/4

139,7

5 1/2

3-121Л

4 1/2 FH LH

3-118Л

NC44 LH

3-118

NC44

VBT-133

133,4

5 1/4

82,6

3 1/4

196,8

7 3/4

 

 

177,8

7

3-152Л

6 5/8 REG LH

 

 

3-147

5 1/2 FH

3-149

NC56

VBT-140

139,7

5 1/2

3-147

5 1/2 FH

184,2

7 1/4

3-149

NC56

  • Upon customer’s request threads of pin and box ends can be changed to other equal in strength.
  • Upon customer’s request the kellies can be hexahedral.

NEW!

The Company mastered repair of the split-type square kellies ensuring that square sides will fit after thread recutting.

Catalogue Oilfield and drilling equipment download.


 


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