The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 07, 2026
Filed:
Jul. 07, 2025
Landmark Graphics Corporation, Houston, TX (US);
Zhengchun Michael Liu, Sugar Land, TX (US);
Robello Samuel, Cypress, TX (US);
Landmark Graphics Corporation, Houston, TX (US);
Abstract
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. Determining the pack off indicator can include estimating the accumulation of geological material in the wellbore. Determining the pack off indicator additionally can include dividing the estimated accumulation by a volume of a wellbore annulus defined by a first set of wellbore piping and a second set of wellbore piping positioned in the wellbore. The system can automatically adjust a wellbore operation using the pack off indicator by controlling a flow of circulating fluid in response to the pack off indicator exceeding a predetermined threshold.