Collet Type Bulldog Spear Wireline Fishing Tool
Brand Name:Ruixin
Certification:API Q1
Model Number:1.5inch 2inch 2.5inch 3inch 3.5inch 4inch
Minimum Order Quantity:1
Delivery Time:2-4 weeks
Payment Terms:T/T, Western Union
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Location:
Baoji Shaanxi China
Address:
Room 1901, Block A, Saigao District Building, Feng Cheng Five Road, Xi 'an Economic and Technological Development Zone, Shaanxi Province
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within 30 hours
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Collet Type Bulldog Spear Wireline Fishing Tool
Ⅰ.Overview:
The collet type bulldog spear is used to retrieve wireline tools(fish)lost in the well bore that do not have a conventional fishing neck and are therefore best"fished'with an internal spear .Once latched into a fish, this type of spear cannot be released. It should therefore always be run with a rope socket and pulling tool to ensure release is possible when necessary Collet type bulldog Spears are available in a range of sizes as listed below .The collet type bulldog spear includes one collet, please specify collet size required.
Ⅱ. Parameter:
| Size | FN | Connection | To catch diameter |
| 1.5＂ | 1.375＂ | 15/16UN | 0.875＂～1＂ |
| 1.5＂ | 1.375＂ | 15/16UN | 1＂～1.125＂ |
| 1.5＂ | 1.375＂ | 15/16UN | 1.125＂～1.25＂ |
| 1.5＂ | 1.375＂ | 15/16UN | 1.25＂～1.375＂ |
| 1.5＂ | 1.375＂ | 15/16UN | 1.375＂～1.5＂ |
| 2＂ | 1.75＂ | 15/16UN | 1.125＂～1.25＂ |
| 2＂ | 1.75＂ | 1-1/16UN | 1.25＂～1.375＂ |
| 2＂ | 1.75＂ | 1-1/16UN | 1.375＂～1.5＂ |
| 2＂ | 1.75＂ | 1-1/16UN | 1.5＂～1.675＂ |
| 2＂ | 1.75＂ | 1-1/16UN | 1.675＂～1.75＂ |
| 2＂ | 1.75＂ | 1-1/16UN | 1.75＂～1.875＂ |
| 2＂ | 1.75＂ | 1-1/16UN | 1.875＂～2＂ |
| 2.5＂ | 1.75＂ | 1-1/16UN | 1.75＂～2＂ |
| 2.5＂ | 1.75＂ | 1-1/16UN | 2＂～2.25＂ |
| 2.5＂ | 1.75＂ | 1-1/16UN | 2.25＂～2.5＂ |
| 2.5＂ | 1.75＂ | 1-1/16UN | 2.5＂～2.75＂ |
| 3＂ | 2.313＂ | 1-1/16UN | 2.75＂～3＂ |
| 3＂ | 2.313＂ | 1-1/16UN | 3＂～3.25＂ |
| 3＂ | 2.313＂ | 1-1/16UN | 3.25＂～3.5＂ |
| 3＂ | 2.313＂ | 1-1/16UN | 3.5＂～3.75＂ |
Collet spear is composed of top sub , sleeve, spring, Slip and mandrel, Screw. The upper connector is provided with a standard external fishing neck at the upper end for connecting to the lower part of the tool string and threaded with a mandrel at the lower end. The outer sleeve has the function of straightening tool.
Ⅳ. Method of application
1. Fishing from the well:
2. Connect the tool under the basic tool string and then run down the well;
3.After reaching the predetermined position, hold the falling object loose;
4. String up the lifting tool.
Ⅴ. Attention
Before down the well, the diameter of the inner hole of the salvaging object should be known, so as to select the size of the collet-type spear.
Collet Type Bulldog Spear Wireline Fishing Tool
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