ALEXANDRIA, Va., June 25 -- United States Patent no. 12,338,706, issued on June 24, was assigned to INNOVEX DOWNHOLE SOLUTIONS INC. (Humble, Texas).
"Cement plug system" was invented by Fernando Olguin (Houston) and Chris Cuffe (The Woodlands, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A cement plug system includes a first plug configured to catch a first obstruction member and actuatable from a locked configuration to an unlocked configuration in response to an axial force transmitted to the first plug by the first obstruction member, and a second plug adjacent to the first plug and configured to catch a second obstruction member, the second plug having a pass-through configuration in which the fi...