Popis: |
Experiences of dope-free OCTG (Oil Country Tubular Goods) connections to date have been limited to carbon or low alloy steel threads1. However the higher galling tendencies inherent in stainless steel threads create a different challenge to their successful dope-free running. This study describes the successful development of a dope-free system for 13Cr and corrosion resistant alloy (CRA) connections from the initial development trials of a superior surface treatment system through to the deployment of a dope-free 13Cr offshore production string. |