ALEXANDRIA, Va., May 19 -- United States Patent no. 12,631,579, issued on May 19, was assigned to SCHLUMBERGER TECHNOLOGY Corp. (Sugar Land, Texas).
"XRF and calcimetry evaluation of multiphase oilfield fluids" was invented by Reda Karoum (Houston), Sangeeth Venugopal (Clamart, France) and Carlos Abad (Houston).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for evaluating a multiphase oilfield fluid includes blending a first sample of the fluid with a viscosity modifying agent to transform the sample into a paste; making a first XRF measurement of the paste to estimate an elemental composition of the fluid; making a calcimetry measurement of a second sample of the fluid to estimate a total carbonate ...