Patent ID: 8833470
Filing Date: 2014-09-16
Classification: E21B

Abstract:
1. A method of forming a string of pipe using a joining assembly at a wellbore, the joining assembly includes an internal joining tool and an external joining tool, the method comprising: picking up the pipe joint using an elevator; lowering a lower end of the pipe joint into the external joining tool, the external joining tool being configured to surround the lower end of the pipe joint and an end of a string of pipe, wherein the string of pipe is supported by a spider; manipulating a cable attached to the internal joining tool to lower the internal joining tool from a first position to a second position relative to the elevator, wherein the internal joining tool straddles the pipe joint and the string of pipe in the second position and wherein the cable moves through at least a portion of a gripping tool; forming a connection between the pipe joint and the string of pipe using the internal joining tool and the external joining tool; and gripping the pipe joint connected to the string of pipe using the gripping tool and releasing the elevator from the pipe joint; and lowering the gripping tool to lower the pipe joint and the string of pipe into the wellbore.