News & Information

December 18, 2024

Video: Proper Handling and Care for Thermoplastic Lined Tubing

Patrick Meyer, Product Line Manager - Thermoplastic Lined Tubing, discusses best practices for handling and operating thermoplastic lined tubing.

Proper handling and operational procedures are key when it comes to ensuring the optimal performance and longevity of thermoplastic lined tubing. At Lightning Production Services, we pride ourselves on delivering high-quality products like our LF115 and equipping our clients with the knowledge they need to succeed in the field.

In this video, Patrick Meyer, our Thermoplastic Lined Tubing Product Line Manager, shares essential insights into handling, installing, and operating thermoplastic lined tubing in various environments. From protecting liners to managing creeping, this guide has actionable tips for energy professionals.

Handling Thermoplastic Lined Tubing: Key Tips

Thread Protector Best Practices

• Keep pinion thread protectors on until each joint is pulled to the derrick. This prevents dragging and potential liner damage.
• Boxed thread protectors can be removed as usual.

Use a Stabbing Guide

• To avoid damaging pinions during installation, use a stabbing guide. Lightning Production Services can provide one for your operation.
• If a stabbing guide isn’t available, instruct workover rig hands to slow down and carefully make connections.

Understanding and Managing Liner “Creeping”

Thermoplastic liners are mechanically bonded to tubing, which makes them highly durable but also subject to expansion and contraction due to temperature changes.

What is Creeping?

• Creeping refers to the liner appearing to grow out of the tubing ends. This is completely normal, especially in warmer climates like the Permian.

Key Points to Remember:

• Up to ¾ inch of creeping is acceptable for installation.
• Extended coated couplings on LPS tubing are designed to accommodate creeping and prevent over-torquing.

If creeping exceeds ¾ inch, lay the joints down carefully and recheck them after cooling overnight. In most cases, the liner will return to normal.

Cold Weather Considerations

In colder regions like the Bakken, liners may shrink in extremely low temperatures, potentially causing pin ends to pop off. At LPS, we’ve developed specialized processes to minimize these challenges, ensuring success in subzero conditions.

Hydro Testing Recommendations

For new installations, hydro testing is neither recommended nor necessary. However, if required:

• Test the lined tubing portion of your string downhole using a standing valve.
• When working over wells, use the lowest possible pressures to avoid liner damage.

Many customers have successfully hydro tested at normal pressure ranges, but it’s always wise to consult us first.

No Impact on Scanning Accuracy

Thermoplastic liners do not impede your ability to achieve accurate scans. While the liner itself won’t appear on the scan, your scanning results will remain precise.

Proper handling and operation of thermoplastic lined tubing can enhance your well’s performance and reduce operational challenges. If you have any questions or need assistance with installation, our team is here to help.