Patent ID: 7905529

Claim:
A lifting tool for supporting an oilfield riser during relocation by crane having a support line, comprising: a tool body for suspending from the support line and having an inverted U-shaped configuration, with a central opening for receiving the riser and a downwardly facing throat; an arcuate member supported on the tool body and rotatable about a central axis, the arcuate member having an open position wherein a spacing in the arcuate member is circumferentially aligned with the open throat of the tool body, and the arcuate member having a closed position wherein the arcuate member at least substantially closes the open throat such that the arcuate member supports the riser when positioned within the central opening of the tool body when the tool is raised by the support line; and a powered drive for rotating the arcuate member between the open position and the closed position; and a drive chain secured to an exterior surface of the arcuate member for rotatably driving the arcuate member.