Fishing Tool is a specialized tool which is used to retrieve a dropped object from the wellbore. During any stage of operation, rig operators encounter unexpected situations like falling of drill string, stuck pipe, loss of bit etc., in the well. The piece of equipment that falls in the well is called “fish” or “junk” and the tool employed to remove them is known as a Fishing Tool. Fishing Tools are classified as outside grappler, which surround the fish and grab it from the outside area and carry it up to the wellbore. The inside grappler is tapered in design with thread profiles which are able to move inside and thread the fish top enabling the fish to be recovered. The Fishing spear is a tapered down hole fishing tool that is designed to cut a thread into inside bore of the rotary drilling tubular.
