ALEXANDRIA, Va., May 19 -- United States Patent no. 12,631,080, issued on May 19, was assigned to Halliburton Energy Services Inc. (Houston).
"Downhole plug" was invented by Donald Smith (Wilson, Okla.) and Matthew Dexter (Carrollton, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "In some implementations, an apparatus may comprise a collet sleeve configured for insertion into a cavity of a mule shoe and including teeth configured to ratchet with pawls of the mule shoe. The apparatus also may comprise a packing element surrounding a portion of the collet sleeve and configured to radially expand to form a seal with a casing of a wellbore in response to a setting force to join the teeth and the pawls."
T...