Generic ProcedureThe following gene

Generic Procedure
The following generic procedure can be adapted for each particular job:
1. Before engaging the fish, establish up/down and rotating weight.
2. With the overshot directly above the fish, a combination of rotating and lowering shall result in the following:
The guide directs the fish into the overshot.
The fish can easily pass through the grapple because of its helical shape and mode of rotation.
Too much rotation can damage/wear the grapple.
3. If the basket grapple used is not a long catch stop type, USE a stop to stop the grapple going completely over the upset of the fish. If the grapple goes over the upset of the fish, it would be almost impossible to release the overshot from the fish.
4. When the fish is properly located in the overshot, EXERT an upward pull. ALLOW pull to ‘soak’ to allow setting of the grapple and penetration into fish. From this point onwards, MAINTAIN positive overpull on fish at all times. The grapple will be contacted by the upward taper in the bowl and the fish held securely. The pack-off rubber seals around the fish enabling fluid to be forced down through the fish.
5. By lowering the string weight or bumping down against the fish, the grapple can be freed from the bowl. By slowly rotating to the right and slowly raising the string, the spiral grapple unwinds or the basket grapple expands disengaging the string from the fish.