Reference Magnets


Reference Magnets : Magnets inset in the wall of the non-magnetic drill collar. Used to indicate a position of the deflecting tool with respect to magnetic north. A picture of a magnetic needle compass at the magnets is imposed on the picture of the magnetic north compass. (Bul D20)
No records Found
afaatim.com copyright © April 2016 Dr.K.R.Kamaal. All rights reserved