AER Bonded-Centralizers

  • Casing swivel allows rotation of running string by decoupling from the liner, making it easier to get the liner to TD
  • Bonded non-rotating centralizers help keep the coefficient of friction lower
    • Useful for tight and deviated, horizontal, and extended-reach holes
    • Not full-gauge
    • Spiraling blades create junk slots that promote fluid/solids migration
  • Rotating running string reduces drag
  • Sleeve with blades bonded to tubulars with 
  • High-strength resin
  • Non-aqueous drilling fluid (OBM)
Pipes connected with casing
large pipes with holes in them
Pipes with hoses sticking out of them
Pipes with hoses sticking out of them
Pipes laid on the floor
Pipes connected with casing
large pipes with holes in them
Pipes with hoses sticking out of them
Pipes with hoses sticking out of them
Pipes laid on the floor

Patent no. 10,053,925: CENTRALIZER SYSTEM