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Oilfield Glossary
Oilfield Glossary
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Tools

O-ring

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1. n. [Well Completions]
A type of circular seal commonly found in downhole tools and a wide range of surface equipment applications. The specification of O-ring material depends on the conditions for which the seal is intended, such as system operating temperature and pressure. Various backup systems are used to support the O-ring seal in either dynamic or static sealing applications.