THE CHALLENGE: To provide premium internal corrosion protection using a Glass-Reinforced-Epoxy (GRE) internal lining system inside any welded flowline.
THE SOLUTION IN TWO EFFECTIVE STEPS:
1. Employ DUOLINE ® from Duoline Technologies: a premium internal corrosion resistant lining system for oilfield steel tubing and line pipe. DUOLINE ® has been proven to be highly abrasion resistant and chemical resistant in both controlled testing and through the high quality performance of more than 75,000,000 feet of field installations.
2. Use the new WeldShield ® connection insert system: a patent pending technology that permits welding plain end line pipe which has been internally lined with the GRE lining system without causing heat damage to the liner components and permits standard operations such as pigging.
HOW DOES THE WELDSHIELD® WORK?
Prior to welding the pipe, which was internally lined at a DUOLINE ® facility, the WeldShield ® insert is placed inside the connection area. Typical welding procedures and materials are then used to weld the pipe without causing heat damage to the lining components. This same basic concept and material composition of the WeldShield ® has been used extensively with DUOLINE ® in a variety of conditions throughout the world.