You must log in to edit PetroWiki. Help with editing
Content of PetroWiki is intended for personal use only and to supplement, not replace, engineering judgment. SPE disclaims any and all liability for your use of such content. More information
Removing a blockage, fish or casing wall by drilling with a metal-cutting device to gain access to the area beyond.
We are grateful to our generous sponsors for their assistance in building and supporting PetroWiki.