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Workover fishing tool
Junk Sub
- Type:Workover fishing tool
- CAS No:
- Qty in 20' FCL:
- Min. Order:
- Packaging:
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Model
Hole Size(mm)
Thread Conn.
I.D.(mm)
O.D.(mm)
LB94
108~117.5
2 3/8 REG
19
94
LB102
117.5~124
2 7/8 REG
32
102
LB114
130~149
3 1/2 REG
38
114
LB127
152.4~162
3 1/2 REG
38
127
LB140
165~190.5
3 1/2 REG
38
140
LB168
190.5~216
4 1/2 REG
57
168
LB178
219~244.5
4 1/2 REG
57
178
LB190
229~273
4 1/2 REG
57
190
LB197
235~297.5
4 1/2 IF
70
197
LB219
244~295.5
6 5/8 REG
76
219
LB229
254~305
6 5/8 REG
76
229
LB245
292~330
6 5/8 REG
76
245
LB280
330~375
7 5/8 REG
76
280
LB311
327~375
7 5/8 REG
76
311
LB327
375~444.5
7 5/8 REG
76
327
LB340
386~456
7 5/8 REG
76
240
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During drilling process, drilling fishing cup is applled mainly for fishing of shivers and fallen objects such as carbide tooth, drill bit and bearing which can not be carried out of hole by conventional fluid circulation, etc It possesses important functions to keep hole toe cleaning, increase bit service life, reduce and prevent drill bit from unexpected damage.
Structure
Due to the fact that the O.D. of external bowl of fishing cup is bigger and a smaller circular space is available between extemal bowl of fishig cup and well hole, the mandrel diameter at cup mouth is larger so that it has a bigger annular space, therefore, the fluid at the cup mouth form a swirls and suddenly fall down so as to reduce the carrying capacity. By this way, some heavy objects will drop in cup and be fished out so that the purpose of cleaning ofhole toe is carried out.
