US Patent Issued to INTERWELL P&A AS on May 6 for "System and method for forming a permanent barrier in a well" (Norwegian Inventors)

ALEXANDRIA, Va., June 10 -- United States Patent no. 12,291,942, issued on May 6, was assigned to INTERWELL P&A AS (Hafrsfjord, Norway).

"System and method for forming a permanent barrier in a well" was invented by Torgeir Rusten (Vikhammer, Norway) and Stian Tondel (Trondheim, Norway).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a well tool system for forming a permanent barrier in a well, the system comprising: a well tool device comprising a pyrotechnic mixture and an ignition device provided within or adjacent to the pyrotechnic mixture; a tool string connected above the well tool device; and a replenishment string connected between the well tool device and tool string. ...