Tubing hanger
1. The threaded mandrel hanger is a complete compression ring seal, which is driven by locking screws. Back pressure valve threads are optional.
2. The encircling tubing hanger is an annular seal with high elasticity, which allows the tubing string to operate while maintaining complete control of the annular pressure. The threaded mandrel hanger has an extended neck, a reliable annular compression seal with external excitation, which is activated by a retractable locking screw in the tubing head. Equipped with back pressure valve, control line and injection port can be configured.
3. Thread coupler is used together with adapter and tubing hanger. It is a one piece connection with acme thread on the outside and back pressure valve thread on the inside.
4. The coupling hanger is used to suspend and seal multiple tubing strings, which can produce or inject from the separated area at the same time.