Downhole tubing & casing (OCTG)

Enhancing Downhole Performance with Stancor

Downhole tubing and casing face severe wear challenges that can lead to catastrophic failures. Stancor's seamless pipes and tubes offer unparalleled durability and performance.

The service challenge

The primary wear mechanism in downhole applications is sliding abrasion due to erosive materials present in drilling fluids. This wear often leads to premature failure of components, particularly affecting the tubing and casing first.

Recommended pipe or tube by component

Component	Grade	Thickness	Why
Downhole Tubing	S31600	5-10	Enhanced corrosion resistance increases service life.
Casing Pipe	S32205	6-15	Superior strength and toughness extend operational longevity.
Production Tubing	N08904	4-8	Excellent resistance to pitting and crevice corrosion.
Pump Casing	S32750	8-12	High resistance to wear prolongs maintenance intervals.
Riser Pipe	N06625	10-20	Outstanding high-temperature strength ensures reliability in extreme conditions.

Selecting the right pipe or tube

Corrosion Resistance Matters

Choose materials with high resistance to corrosion for downhole environments.

Consider Stress Levels

Select alloys that can withstand the stress conditions of your specific application.

Thickness vs. Weight

Balance the thickness of pipes with the overall weight requirements of the rig.

Future-proof Your Selection

Opt for advanced alloys to mitigate wear in evolving drilling environments.

Questions engineers ask

What is the benefit of using duplex steel?

Duplex steel provides a mix of austenitic and ferritic structures, offering excellent corrosion resistance and high strength. This makes it ideal for demanding downhole applications.

How does wear affect casing pipe performance?

Wear can significantly reduce the integrity of casing pipes, leading to leaks or failures. Regular assessments and the use of wear-resistant materials can mitigate these risks.

What grades are preferred for high-temperature applications?

Nickel alloys like N06625 and N08811 are preferred due to their excellent strength and stability at elevated temperatures. This ensures consistent performance even under thermal stress.

Are seamless pipes better than welded pipes?

Seamless pipes eliminate weak points associated with welds, providing better fatigue resistance and can perform better in high-pressure environments. They are typically favored for critical applications.

Not listed? Send your specification and we will confirm availability.