Square kelly (SK), split-type square kelly (STSK)
Kellys transfer torque from rotors to drill strings. Upon customer’s request, kellys 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
We are the exclusive Russian manufacturer of split-type kellys 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 | mm | inch | GOST | API | GOST | API | GOST | API | |
SK-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 |
SK-76 |
76,2 |
3 |
44,4 |
1 3/4 |
104,8 |
4 1/8 |
З-86 |
NC31 | ||||||||
SK-80 |
80 |
3 1/8 |
50 |
2 | ||||||||||||
SK-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 | |||||||||||
SK-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 | ||
SK-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 | |||||||||||||||
SK-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 types of equal in strength.
- Upon customer’s request, the kellys can be hexahedral type.
NEW!
The Company mastered repair of the split-type square kellys ensuring that square sides will fit after thread recutting.
Catalogue Oilfield and drilling equipment download.
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