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)

Patent no. 10,053,925: CENTRALIZER SYSTEM