Before revision: Any imperfections are eliminated one of two actions: A re-cut , where a thin section is shaved off the end of the pipe, and the box, or pin, is re-threaded resulting in pipe length reduction chase and face , where the pipe threads are effectively moved further down, again resulting in reduced overall length Tracking of drill pipe length used Tracking and recording of drill pipe at the rig site starts when individual joints are picked up.
After revision: Any imperfections are eliminated one of two actions: A "Chase and Face" , where a thin section is shaved off the end of the pipe, and the box, or pin, is re-threaded resulting in pipe length reduction A "Re-cut" , where the pipe threads are effectively moved further down, again resulting in reduced overall length Tracking of drill pipe length used Tracking and recording of drill pipe at the rig site starts when individual joints are picked up.