ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,492,613, issued on Dec. 9, was assigned to FORUM US INC. (Houston).
"Wiper plug with dissolvable core" was invented by Jeffery Morrison (Missouri City, Texas) and Andrew Webber (Hockley, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "Aspects of the present disclosure relate to wellbore plugs, and specifically to pump down wiper plug assemblies used for conducting casing integrity pressure tests and completing wellbores. A plug assembly comprises one or more of a mandrel, a wiper, a dissolvable member, a rupture disk, and a movable sleeve. The dissolvable member and the rupture disk are configured to temporarily close fluid flow through an inner bor...