Nothing happens to your BHA design, most likely as your BHA will not usually have NC-50 - they will be provided by Schlum or Breakerfuse and they in my experience use NC-50 or more usually XX Reg of some size.
Let's say you did get the IF profile in a BHA component, since BHA connection...
NS-2 is available from Fearnley Procter Group in Houston and Aberdeen, 748600.
NS-2 covers more than DS-1 and is part of the Drill string and well equipment NS system NS-1, NS-2 and NS-14.
NS-1 covers the manufactuering of new equipment and is available on CD. (it was originally written by...
