SQUARE KELLY STD DIMENSIONS |
NOMINAL KELLY SIZE OD |
STD LENGTHS |
TOP LH THREAD CONNECTION |
TOP CONNECTION OD |
BOTTOM RH CONNECTION THREAD |
BOTTOM CONNECTION OD |
STD BORE |
APPROX WEIGHT PER 40 FT SECTION |
IN |
MM |
FT |
M |
IN |
MM |
IN |
MM |
IN |
MM |
LB |
KG |
3,5 |
88,9 |
40 |
12,19 |
6 5/8” API REG LH |
7,75 |
196,85 |
NC38 (3 ½” API IF) |
4,75 |
120,65 |
2,25 |
57,15 |
1320 |
600 |
42 |
12,8 |
46 |
14,02 |
3,5 |
88,9 |
40 |
12,19 |
4 ?” API REG LH |
5,75 |
146,04 |
NC38 (3 ½” API IF) |
4,75 |
120,65 |
2,25 |
57,15 |
1320 |
600 |
42 |
12,8 |
46 |
14,02 |
4,25 |
107,95 |
40 |
12,19 |
6 5/8” API REG LH |
7,75 |
196,85 |
NC46 (4” IF) |
6 - 6 3/6 |
125.40 - 161.92 |
2,8125 |
71,37 |
1820 |
827,27 |
42 |
12,8 |
46 |
14,02 |
4,25 |
107,95 |
40 |
12,19 |
6 5/8” API REG LH |
7,75 |
196,85 |
NC50 ( 4 ½” IF) |
6 1/8- 6 3/8 |
155.57-161.92 |
2,8125 |
71,37 |
1820 |
827,27 |
42 |
12,8 |
46 |
14,02 |
5,25 |
133,35 |
40 |
12,19 |
6 5/8” API REG LH |
7,75 |
196,85 |
NC56 OR 5 ½” FH |
7 |
177,8 |
3 |
76,2 |
2780 |
1263,63 |
42 |
12,8 |
46 |
14,02 |
6 |
152,4 |
40 |
12,19 |
6 5/8” API REG LH |
7,75 |
196,85 |
6 5/8” API REG |
7,75 |
196,85 |
3 |
76,2 |
3700 |
1681,81 |
42 |
12,8 |
46 |
14,02 |
HEXAGONAL KELLY STD DIMENSIONS |
NOMINAL KELLY SIZE OD |
STD LENGTHS |
TOP LH THREAD CONNECTION |
TOP CONNECTION OD |
BOTTOM RH CONNECTION |
BOTTOM CONNECTION OD |
STD BORE |
APPROX WEIGHT PER 40 FT SECTION |
IN |
MM |
FT |
M |
IN |
MM |
IN |
MM |
IN |
MM |
LB |
KG |
3,5 |
88,9 |
40 |
12,19 |
6 5/8” API REG LH |
7,75 |
196,85 |
NC31 (2 7/8” API IF) |
4,125 |
104,77 |
1,75 |
44,45 |
1300 |
590,9 |
42 |
12,8 |
46 |
14,02 |
3,5 |
88,9 |
40 |
12,19 |
4 ½” API REG LH |
5,75 |
146,04 |
NC31 (2 7/8” API IF) |
4,125 |
104,77 |
1,75 |
44,45 |
1200 |
545,45 |
42 |
12,8 |
46 |
14,02 |
4,25 |
107,95 |
40 |
12,19 |
6 5/8” API REG LH |
7,75 |
196,85 |
NC38 (3 ½” IF) |
4,75 |
120,65 |
2,25 |
57,15 |
1740 |
790,9 |
42 |
12,8 |
46 |
14,02 |
5,25 |
133,35 |
40 |
12,19 |
6 5/8” API REG LH |
7,75 |
196,85 |
NC46 (4” IF) |
6 - 6 3/8 |
125.40 - 161.92 |
2,8125 |
71,37 |
2550 |
1159,09 |
42 |
12,8 |
46 |
14,02 |
5,25 |
133,35 |
40 |
12,19 |
6 5/8” API REG LH |
7,75 |
196,85 |
NC50 ( 4 ½” IF) |
6 1/8 - 6 3/8 |
155.57-161.92 |
3 |
76,2 |
2550 |
1159,09 |
42 |
12,8 |
46 |
14,02 |
6 |
152,4 |
40 |
12,19 |
6 5/8” API REG LH |
7,75 |
196,85 |
NC56 OR 5 ½” FH |
7 |
177,8 |
3 |
76,2 |
3040 |
1381,81 |
42 |
12,8 |
46 |
14,02 |
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