Upstream duty is high pressure, sour service and mechanical abuse in the same package. The assembly usually fails because something drove over it or it was dragged, not because the pressure was wrong.
Applications and the products that suit them
| Application | Product |
|---|---|
| Wellhead control line connections | Braided corrugated hose small bore, double braid |
| Production manifold connections | Braided corrugated hose in 316L |
| Chemical injection lines | Braided corrugated hose in 316L or lined |
| Mud and drilling fluid transfer | Braided corrugated hose with armour guard |
| Test separator connections | Braided corrugated hose in 316L |
| Steam injection lines | Braided corrugated hose in 321 |
| Flare and vent connections | Axial expansion joint in 321 |
Specification notes for this sector
- Armour guard as standard — mechanical damage is the dominant failure here
- Sour service: send us the H2S partial pressure; it changes the material
- Whip check on every connection made and broken in the field
What to send with an enquiry
Bore, medium, pressure, temperature, movement and both end connections. The reasoning for each is on how to specify an assembly.
Related technical reading
Media compatibility · Temperature derating · Failure modes · Installation guide