Patent ID: 8851202
Filing Date: 2014-10-07
Classification: E21B

Abstract:
1. A method for transporting pipe string sections between a storage unit wherein longitudinal axes of the pipe string sections are arranged horizontally, and a drill rig wherein the longitudinal axes of the pipe string sections are arranged vertically and further wherein the pipe string sections are displaceable by means of pipe manipulator, the method comprising the steps of: positioning a transport frame for the pipe string sections at the storage unit wherein the transport frame is rotatable about a rotary axis that is parallel to the pipe string sections wherein the transport frame is provided with a number of fasteners for the pipe string sections; advancing the transport frame along the storage unit in a direction perpendicular to the longitudinal axes of the pipe string sections; completing one step of the group consisting of (a) displacing one of the pipe string sections from the storage unit and placing the one of the pipe string sections in the transport frame and (b) disengaging one of the pipe string sections from the transport frame and placing the one of the pipe string sections in the storage unit; displacing the transport frame with the pipe string sections fixed in position between the storage unit and the drill rig; and rotating the transport frame about the rotary axis until at least one of the fasteners corresponds with a storage position in the storage unit.