The releasing overshot is the special external fishing tool used for fishing drill collar, drill pipe ,oil tube and other fishes in drilling and work over operation.
Technical parameters and specifications
| Type |
Catch size
(mm) |
Allowable
pull
force(KN) |
Thread conn. |
Type |
Catch size
(mm) |
Allowable
pull
force(KN) |
Thread conn. |
| LT-T76 |
32-50 |
270 |
NC26,2 3/8TBG |
LT-T194 |
111-159 |
1200 |
NC50 |
| LT-T86 |
32-60 |
300 |
NC26 |
LT-T197 |
127-165 |
1523 |
NC50 |
| LT-T89 |
32-60 |
320 |
NC26 |
LT-T200 |
111-159 |
1450 |
NC50 |
| LT-T92 |
48-73 |
300 |
NC26 |
LT-T200A |
111-171.5 |
1400 |
NC50 |
| LT-T95 |
48-73 |
400 |
NC26,2 7/8REG 2 7/8TBG |
LT-T203 |
111-159 |
1600 |
NC50 |
| LT-T102 |
48-73 |
500 |
2 7/8REG |
LT-T206 |
111-168 |
1400 |
NC50 |
| LT-T105 |
48-73 |
450 |
NC31 |
LT-T206A |
111-178 |
1350 |
NC50 |
| LT-T108 |
60-73 |
550 |
2 7/8REG,2 7/8TBG |
LT-T213 |
124-178 |
1400 |
NC50 |
| LT-T111 |
60-73 |
500 |
NC26,NC31 |
LT-T216 |
124-178 |
1500 |
NC50 |
| LT-T114 |
60-73 |
500 |
NC31,2 7/8TBG |
LT-T219 |
124-178 |
1650 |
NC50 |
| LT-T118 |
60-89 |
600 |
NC31,2 7/8REG |
LT-T225 |
127-178 |
1900 |
NC50 |
| LT-T120 |
60-89 |
650 |
NC31,NC38 |
LT-T232 |
127-178 |
2200 |
NC50 |
| LT-T124 |
60-95 |
650 |
NC31,NC38 |
LT-T238 |
127-178 |
2500 |
NC50 |
| LT-T127 |
60-95 |
700 |
NC31,NC38 |
LT-T241 |
127-178 |
2650 |
NC50 |
| LT-T130 |
60-95 |
750 |
NC31,3 1/2TBG |
LT-T245 |
127-203 |
1900 |
6 5/8REG |
| LT-T134 |
60-105 |
700 |
NC31,NC38 |
LT-T254 |
127-203 |
2350 |
6 5/8REG |
| LT-T140 |
60-115 |
550 |
NC31,NC38 |
LT-T260 |
127-219 |
1950 |
6 5/8REG |
| LT-T143 |
60-115 |
670 |
NC31,NC38 |
LT-T263 |
127-129 |
2120 |
6 5/8REG |
| LT-T145 |
60-115 |
750 |
NC31,NC38 |
LT-T270 |
127-229 |
2050 |
6 5/8REG |
| LT-T150 |
60-115 |
900 |
NC31,NC38 |
LT-T273 |
127-229 |
2200 |
6 5/8REG |
| LT-T152 |
60-121 |
850 |
NC31,NC38 |
LT-T279 |
127-229 |
2550 |
6 5/8REG |
| LT-T156 |
65-121 |
950 |
NC31,NC38 |
LT-T286 |
127-245 |
2150 |
6 5/8REG |
| LT-T159 |
89-127 |
900 |
NC38,NC46 |
LT-T295 |
127-245 |
2700 |
6 5/8REG |
| LT-T162 |
89-127 |
1000 |
NC46 |
LT-T298 |
127-245 |
2850 |
6 5/8REG |
| LT-T168 |
89-127 |
1200 |
NC50 |
LT-T302 |
127-245 |
3100 |
6 5/8REG |
| LT-T170 |
89-127 |
1250 |
NC50 |
LT-T340 |
229-280 |
3500 |
6 5/8REG |
| LT-T178 |
89-127 |
1500 |
NC50 |
LT-T350 |
286-305 |
2305 |
6 5/8REG |
| LT-T187 |
111-159 |
1000 |
NC50 |
LT-T406 |
229-349 |
3960 |
7 5/8REG |
| LT-T190 |
111-159 |
1050 |
NC50 |
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