US Patent Issued to Tenax Energy System on March 3 for "Variable intensity and selective pressure activated jar" (Oklahoma Inventor)

ALEXANDRIA, Va., March 3 -- United States Patent no. 12,565,818, issued on March 3, was assigned to Tenax Energy System LLC (Clinton, Okla.).

"Variable intensity and selective pressure activated jar" was invented by Kevin Dewayne Jones (Clinton, Okla.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A jarring tool used to dislodge a stuck tubular string or bottom hole assembly within an underground wellbore. A funnel element is placed underground either within, or as part of, a tubular string. A deformable ball may be seated within the funnel element to block fluid from passing within the tubular string. Hydraulic pressure may build within the tubular string until it exceeds the pressure the ball can withstand...