METHOD OF INTERCONNECTING A DRILL ROD WITH A DRILL STRING BY MEANS OF A THREADED CONNECTION, ROD HANDLING SYSTEM AND DRILL RIG

摘要

A method of interconnecting a drill rod with a drill string by a threaded connection is disclosed. The method includes axially aligning the drill rod with the drill string, rotating the drill rod in a disengagement rotational direction of the threaded connection, identifying a rotational position of the drill rod where thread ends of the rod and the drill string slip over each other, stopping the rotating within a predetermined period of identifying the rotational position, and rotating the drill rod in an engagement direction, such that the drill rod is interconnected with the drill string by the threaded connection.

主权项

1. A method of interconnecting a drill rod with a drill string by a threaded connection, the method comprising:
axially aligning the drill rod with the drill string; rotating the drill rod and the drill string relative each other in a disengagement rotational direction of the threaded connection; identifying a rotational position of the drill rod where thread ends of the rod and the drill string slip over each other; stopping said rotating within a predetermined period of identifying the rotational position; and rotating the drill rod and the drill string relative to each other in an engagement direction, such that the drill rod is interconnected with the drill string by the threaded connection.