ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,540,518, issued on Feb. 3, was assigned to Schlumberger Technology Corp. (Sugar Land, Texas).
"Controlling drilling fluid composition using an inverted multi-variable drilling fluid additive model" was invented by Andrew Clarke (Haslingfield, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "A drilling fluid manager creates a multi-dimensional drilling fluid additive model and interpolates changes in a drilling fluid based on a combination of additives. The interpolations are inverted to determine the amount of additives based on measurements of drilling fluid properties. As fluid is returned to the surface, drilling fluid parameters are measu...