ALEXANDRIA, Va., April 7 -- United States Patent no. 12,595,728, issued on April 7, was assigned to Landmark Graphics Corp. (Houston).
"Pack off indicator for a wellbore operation" was invented by Zhengchun Michael Liu (Sugar Land, Texas) and Robello Samuel (Cypress, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A system can determine, based on an accumulation of geological material in a wellbore, a pack off indicator indicating a likelihood of a downhole tool being immobile in the wellbore. The accumulation of geological material in the wellbore comprises cuttings resulting from an action of the downhole tool positioned in the wellbore and settled cavings resulting from instability in the wellbore. D...