ALEXANDRIA, Va., May 19 -- United States Patent no. 12,630,757, issued on May 19, was assigned to Schlumberger Technology Corp. (Sugar Land, Texas).
"High temperature gravel packing fluid system" was invented by Tint Htoo Aung (Houston), Balkrishna Gadiyar (Houston), Juan-Carlos Santamaria (Sugar Land, Texas), Cedric Manzoleloua (Houston), Hui Zhang (Houston), Edward Derkach (Houston) and Christopher Daeffler (Sugar Land, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A high density carrier fluid for use in placing a gravel pack within a wellbore includes a modified starch, a magnesium oxide, and a nano-crystalline-cellulose having a median diameter of about 20 nanometers or less. The carrier fluid inc...