Patent ID: 8387720
Filing Date: 2013-03-05
Classification: E21B

Abstract:
1. A drilling rig for automatically executing rocking of a drill string, wherein the drilling rig comprises: a. a top drive connected to a drill string supported by a hoist of a drill tower; b. hydraulic pumping means connected to the top drive; c. a prime mover connected to the hydraulic pumping means; d. a control system connected to the top drive, hydraulic pumping means and prime mover, wherein the control system comprises: e. a remote control connected to the processor, enabling a user to remotely perform at least one of four modes of operations at least partially automatically using the drill string by the top drive comprising a drill mode, a make-up mode, an orient mode, and a rocking mode, and wherein the remote control comprises: f. computer instructions in the data storage to compare data from the torque pin sensor to a top drive torque maximum or a specified number of turns for the drill string to rock the drill string; g. computer instructions in the data storage for establishing a maximum torque while drilling in a clockwise direction or a specified number of turns for the drill string in a clockwise direction; and h. computer instructions in the data storage for establishing a maximum torque while rotating the drill string in a counter-clockwise direction or a specified number of turns for the drill string in a counter-clockwise direction.