ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,473,783, issued on Nov. 18, was assigned to National Oilwell Varco LP (Houston).
"Tubular string building system and method" was invented by Robert Benjamin Donnally (Houston) and Xilin Liu (Houston).
According to the abstract* released by the U.S. Patent & Trademark Office: "A well system includes a rig floor, a first rig floor robot positioned on the rig floor, wherein the first rig floor robot is configured to guide a lower end of a pipe stand towards a setback position on the rig floor, a mast extending from the rig floor, the mast including a plurality of legs, a pipe transport assembly slidably coupled to one of the legs of the mast, wherein the pipe transport assembly includes...