# Production string

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> Source: https://en.wikipedia.org/wiki/Production_string
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For production strings in software deployment, see [deployment environment](/source/Deployment_environment).

The **production string** is a part of an [oil well](/source/Oil_well) that is composed of the [production tubing](/source/Production_tubing) and other completion components and serves as the conduit through which the [production fluid](/source/Production_fluid) flows from the [oil reservoir](/source/Oil_reservoir) to the surface through the [wellhead](/source/Wellhead). Its purpose is to both contain the fluids from contaminating the environment or eroding the other well structures, such as the [casing](/source/Casing_(oil_well)).

## External links

- [Schlumberger Oilfield Glossary: production string](http://www.glossary.oilfield.slb.com/Display.cfm?Term=production%20string)

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Adapted from the Wikipedia article [Production string](https://en.wikipedia.org/wiki/Production_string) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Production_string?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.