Type DLT-T Releasable Reversing Overshot , a type of fi shing tool designed to recover and back off the stuck pipeshaped fi sh like drill pipe ,oil tubing, ect. Its distinguishing features are as follows : to unscrew and recover the stuck fi sh; to release the fi sh down hole if necessary; to circulate the washing fl uid.
Technical parameters and specifi cations
| Type |
O.D.
(mm) |
Catch size
(mm) |
Allowable
pull
force(KN) |
Reversing tensile force and applied torque |
Thread conn. |
| Tensile force(KN) |
Torque (N・m) |
DLT-T95 48 |
95 |
47.0-50 |
250 |
120 |
3100 |
2 7/8REG |
| DLT-T10560 |
105 |
60-62 |
350 |
150 |
5750 |
2 7/8IF(NC31) |
| DLT-T11473 |
114 |
72.0-75 |
420 |
180 |
7750 |
2 7/8IF(NC31) |
| DLT-T13489 |
134 |
88-91 |
500 |
180 |
10250 |
3 1/2IF(NC38) |
| DLT-T145102 |
145 |
101-104 |
700 |
200 |
11050 |
3 1/2IF(NC38) |
| DLT-T160114 |
160 |
113-115 |
900 |
200 |
12150 |
4 1/2REG |
| DLT-T185127 |
185 |
126-129 |
1200 |
240 |
13500 |
4 1/2IF(NC50) |
| DLTCT200140 |
200 |
139-142 |
1500 |
240 |
15300 |
4 1/2IF(NC50) | |
