Blast Joint & Flow Coupling

Giant Oil Tools Blast Joints and Flow Couplings are thick walled tubular components normally utilised in completions and located adjacent to changes in the tubing ID or across from perforations.

Flow Couplings are utilised so that erosional turbulence caused by changes in the tubing ID can occur in the thicker wall of the flow coupling, rather than in the production tubing. Flow Couplings are generally connection coupling OD and are available in 3-, 4-, 6-, 8-, and 10-ft lengths.

Blast Joints are constructed similarly, with connection coupling OD and are available in 10- or 20-ft lengths. The Blast Joint is placed in the tubing string adjacent to the perforations. The thick walls of this tube resist the erosive blast of fluid from the formation, which often carries abrasive solid particles.

Features & Benefits

• Protects tubing string from erosion effects of fluid and gas inflow
• Tubing string ID maintained (no restrictions)
• Metallurgy compatible with service environment
• Available in a variety of material grades including
  • 4140 Carbon Steel (L-80, P-110)
  • 9Cr - 1Mo - 80 ksi yield
  • 13Cr - 80 ksi yield
  • S13Cr - 110 ksi yield
  • Nickel Alloys
• Available with all API and most premium thread connections
• Available in various lengths