|
|
 |
| |
 Kelly |
|
Kelly
|
The Kelly is made from 4145 H modified alloy steel in accordance with API Spec. 7 lastest edition, which are quenched and tempered along full length with the hardness up to 285 to 341 BHN and minimum impact value of 54 Joules as per ASTM A370 Charpy-V, these values are guaranteed one inch below the surface. The kelly Bars are inspected by ultrasonic unit.
|
|
|
|
Standard Size for Square Kellys
|
|
Nom. Size (in)
|
Length (ft)
|
Top Upset
|
Bottom upset
|
Bore
|
Drive Section
|
Weight (kg)
|
|
A
|
B
|
LH Conn.
|
OD C (in)
|
RH Conn.
|
OD D (in)
|
E (in)
|
F (in)
|
G (in)
|
|
|
|
|
6 5/8 Reg.
|
7 3/4
|
2 3/8 IF
|
3 3/8
|
1 1/4
|
3 1/4
|
2 1/2
|
410
|
|
|
|
465
|
|
|
|
|
6 5/8 Reg.
|
7 3/4
|
2 7/8 IF
|
4 1/8
|
1 3/4
|
3 7/8
|
3
|
495
|
|
|
|
560
|
|
|
|
|
6 5/8 Reg.
|
7 3/4
|
3 1/2 IF
|
4 3/4
|
2 1/4
|
4 7/16
|
3 1/2
|
600
|
|
|
|
670
|
|
|
|
780
|
|
|
|
|
6 5/8 Reg.
|
7 3/4
|
4 IF or 4 1/2 IF
|
6, 6 3/8, 6 1/2
|
2 13/16
|
5 1/2
|
4 1/4
|
825
|
|
|
|
940
|
|
|
|
1070
|
|
|
|
|
6 5/8 Reg.
|
7 3/4
|
4 1/2IF or 5 1/2FH
|
7
|
3 1/4
|
6 7/8
|
5 1/4
|
1250
|
|
|
|
1430
|
|
|
|
1670
|
|
|
|
|
6 5/8 Reg.
|
7 3/4
|
6 5/8FH
|
8
|
3 1/2
|
7 5/8
|
6
|
1670
|
|
|
|
1920
|
|
|
|
2250
|
Standard Sizes for Hexagonal Kelly
|
Nom. Size (in)
|
Length (ft)
|
Top Upset
|
Bottom upset
|
Bore
|
Drive Section
|
Weight (kg)
|
|
A
|
B
|
LH Conn.
|
OD C (in)
|
RH Conn.
|
OD D (in)
|
E (in)
|
F (in)
|
G (in)
|
|
|
|
|
6 5/8 Reg.
|
7 3/4
|
2 3/8 IF
|
3 3 /8
|
1 1/2
|
3 3/8
|
3
|
450
|
|
|
|
500
|
|
|
|
|
6 5/8 Reg.
|
7 3/4
|
2 7/8 IF
|
4 1/8
|
1 3/4
|
3 15/16
|
3 1/2
|
580
|
|
|
|
670
|
|
|
|
780
|
|
|
|
|
6 5/8 Reg.
|
7 3/4
|
3 1/2 IF
|
4 3/4
|
2 1/4
|
4 7/8
|
4 1/4
|
750
|
|
|
|
840
|
|
|
|
980
|
|
|
|
|
6 5/8 Reg.
|
7 3/4
|
4 IIF or 4 1/2IF
|
6, 6 3/8 or 6 1/2
|
2 13/16 or 3 1/4
|
5 7/8
|
5 1/4
|
1020
|
|
|
|
1170
|
|
|
|
1350
|
|
|
|
|
6 5/8 Reg.
|
7 3/4
|
4 1/2IF, 5 1/2FH
|
7
|
3 1/2
|
6 13/16
|
6
|
1320
|
|
|
|
1500
|
|
|
|
1770
|
|
Order Instructions:
-
Kelly type: Square or Hexagonal
-
Working space and overall length
-
upper and bottom connection size and type.
|
|
| |
|
|
 |
|
