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Tubing hanger

From Wikipedia, the free encyclopedia
(Redirected from Dognut)

A tubing hanger[1] is a component used in the completion of oil and gas production wells. It is set in the tree or the wellhead and suspends the production tubing and/or casing. Sometimes it provides porting to allow the communication of hydraulic, electric and other downhole functions, as well as chemical injection. It also serves to seal-in the annulus and production areas.

References

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  1. "tubing_hanger". glossary.slb.com. Retrieved 1 May 2025.
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