Overshot WL Wire line
- It is the necessary device for pulling the inner tube assembly.
- To drop the inner tube assembly to the bottom of the hole in dry drilling
- Eliminate the need of pulling and lowering the rods each time core barrel is full.
Assembly
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Components
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NWL HWL PWL WIRE LINE OVERSHOT |
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| Description | Components | |
| Overshot assembly | 1.- Eye bolt | |
| 2.- Cable swivel collar and bearing | ||
| 3.- Cable swivel body | ||
| 4.- Jar tube | ||
| 5.- Locking sleeve | ||
| 6.- Jar staff | ||
| 7.- Overshot head | ||
| 8.- Sleeve adapter | ||
| 9.- Compresion spring | ||
| 10.- Lifting dog | ||