Industries & applications
Pipe and fittings for oil and gas systems.
Material options for drilling, downhole production and gathering lines.
Application overview
Oil & gas
Oil and gas systems use different forms of pipe, from tubing and casing to gathering and transport lines. The material combination depends on the fluid, pressure, temperature and how the pipes are joined.
Material selection
How the materials work
The steel base is chosen for strength and pressure. The inner alloy is selected for the fluid it carries, with joints and applicable standards considered for each project.
Tested examples include N80Q (30Mn5) + 316L pipe and L360QS + N08825 bends.
Application details
At a glance.
Possible applications
- Tubing and casing
- Gathering and transport lines
- Drill pipe
- Bends, elbows, tees and welded joints
Operating conditions
- CO₂, H₂S, chlorides and other corrosive substances
- Pressure, mechanical loads and temperature
- Connections, bends and field welds
Product forms
Tubing, casing, drill pipe, gathering pipe and fittings.
Material options
Tested combinations include N80 + 316L tubing, N80Q (30Mn5) + 316L pipe, L245N + 316L pipe and fittings, and L360QS + N08825 bends.
Design considerations
- Fluid composition and sour-service requirements
- Pipe grade, loads and temperature
- Connections, bends and welding qualifications
Contact UNIMETRA
Discuss your application.
Our team can help you explore the materials and pipe options for your project.
Contact UNIMETRA