What are fishing tools in the oil industry?

RIGZONE Training Center - online oil and gas technology information, training, books, and other learning resources for oil and gas. ... Various Fishing ToolsSource: Logan Oil Tools. In order to perform fishing on a well, drilling must be shelved and special fishing tools employed. read more

Each fishing tool is engineered to perform a specific operation. Since several fishing tools are utilized to make a fishing bottom hole assembly, each tool enhances the performance of the others to provide the most effective solution for all types of well intervention and fishing operations. read more

Other diagnostic tools may include electronic instruments and even downhole sonic or visual-bandwidth cameras. Inside grappling devices, usually called spears, generally have a tapered and threaded profile, enabling the fisherman to first guide the tool into the top of the fish, and then thread the fishing tool into the top of the fish so that recovery may be attempted. read more

“Well fishing tools are constantly being improved and new ones introduced,” explains the author of A Handbook of the Petroleum Industry. David T. Day published volume one of his book in 1922. Describing cable tool operations, he writes that the basic principle of well fishing tools often involved milled wedges – on a spear or in a cylinder – for recovering lost tubing or casing. read more