Tubing and Casing Connections

Tubing and Casing Connections

This article descirbes the Tubing and Casing Connections Functional and Operational requirements.

Functional requirements:

- strength -sealing properties, -resistance to damage, corrosion or erosion.

Operational requirements:

-easy to make-up and break-out in the field (e.g. handling, stabbing, testing, etc); -reusable;

Connection types

For low pressure wells API 8RD thread connections have been the standard in the tubing strings. Non upset has proved more effective than upset (EUE) 8 RD tubing.

Connections provided with metal-to-metal seals are commonly referred to as Premium connections.

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