ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,497,856, issued on Dec. 16, was assigned to Lateral Completions Ltd. (Okotoks, Canada).
"High expansion multi-slip frac plug with narrow cross-section" was invented by Nathan Coffey (Okotoks, Canada), Robert McQuillan (Okotoks, Canada) and Leigh Durling (Calgary, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "A frac plug has multiple conical-shape, radially outwardly expandable slip structures sandwiched between an actuator ring and a first ring. The smaller inner-diameter (ID) end of each slip structure extends into the larger ID end of the neighboring one. The actuator ring has a conical-shape portion extendable into the larger ID end of the ne...