Oilfield Glossary
Oilfield Glossary
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Tools

casing hanger

Wellhead components
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1. n. [Well Completions]
The subassembly of a wellhead that supports the casing string when it is run into the wellbore. The casing hanger provides a means of ensuring that the string is correctly located and generally incorporates a sealing device or system to isolate the casing annulus from upper wellhead components.
See: wellhead