ALEXANDRIA, Va., April 7 -- United States Patent no. 12,595,729, issued on April 7, was assigned to Halliburton Energy Services Inc. (Houston).

"Method to assess risk of fluid flow and associated long term damage of annular cement" was invented by Siva Rama Krishna Jandhyala (Houston) and Walmy Cuello Jimenez (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods of the present disclosure relate to assessing and mitigating the risk of pore pressure buildup as part of designing a cement formulation. A method comprises: performing wellbore integrity analysis to provide a stress state of a cement sheath, wherein the cement sheath is a model; modifying the stress state of the cement sheath due to fluid ...