Oilfield Glossary
Oilfield Glossary
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Tools

mill shoe

1. n. [Well Workover and Intervention]
A downhole tool routinely used in fishing operations to prepare the top and outside surface of a fish, generally to allow an overshot or similar fishing tool to engage cleanly on the fish. In some cases, the outer portion of a fish may be milled out to allow the body and remaining debris to be pushed to the bottom of the wellbore.
Synonyms: washover shoe