FLOOR WRENCH FOR A DRILLING RIG

摘要

A floor wrench for a drilling rig floor is provided. The wrench can include a tong assembly having upper and lower tongs made up of articulated tong blocks that can move and lock together to enclose and make or break a joint between sections of drilling pipe. Each tong block can include a pair of die ram assemblies wherein each tong can have dies to grip the drilling pipe around its circumference. The tong assembly can be mounted in a frame configured for horizontal and vertical movement to and from the pipe joint. In some embodiments, the wrench can further include a pipe spinner having motorized spinners that can spin the upper pipe to form the joint prior to torqueing the joint together, or for uncoupling the upper pipe after the joint is broken.

主权项

1. A floor wrench for use on a drilling rig, the floor wrench comprising:
a manipulator frame configured for mounting on a drilling rig floor; a cart frame disposed within the manipulator frame, the cart frame configured for vertical movement within the manipulator frame; a manipulator cart disposed within the cart frame, the manipulator cart configured for horizontal movement within the cart frame; a power tong assembly disposed on the manipulator cart, the power tong assembly configured for making and breaking joints between sections of drilling pipe; and a control system configured for controlling the movement of the cart frame within the manipulator frame, the movement of the manipulator cart within the cart frame, and the operation of the power tong assembly.