US Patent Issued to ARCHER OILTOOLS AS on Sept. 8 for "Axial position-controlled operation toolstring and method" (Norwegian Inventors)

ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,729,595, issued on Sept. 8, was assigned to ARCHER OILTOOLS AS (Stavanger, Norway).

"Axial position-controlled operation toolstring and method" was invented by Kurt Luis Krogsaeter (Nesttun, Norway), Jan-Ove Fagna (Tertnes, Norway), Atle Loland (Bryne, Norway) and Bjorn Tore Torvestad (Stavanger, Norway).

According to the abstract* released by the U.S. Patent & Trademark Office: "An axial position-controlled operation toolstring for conducting an axial position-controlled operation in a well includes from below and up: a casing cutter tool including knives; a tag sub with dogs arranged for landing on a protrusion in said well; a pipe spear; and a drill pipe string. The knives of the ...