US Patent Issued to PETROLEO BRASILEIRO S.A.-PETROBRAS on Oct. 14 for "Calcite impregnated with scale inhibitor composition, process of obtaining the same and process for combating circulation loss" (Brazilian Inventor)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,441,932, issued on Oct. 14, was assigned to PETROLEO BRASILEIRO S.A.-PETROBRAS (Rio de Janeiro, Brazil).

"Calcite impregnated with scale inhibitor composition, process of obtaining the same and process for combating circulation loss" was invented by Mario Germino Ferreira Da Silva (Rio de Janeiro, Brazil).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention describes a composition that comprises viscous mattresses and calcite impregnated with scale inhibitors. In a second embodiment, the present invention relates to the process of preparing said composition. In another embodiment, a process for combating the circulation loss including the...