ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,385,389, issued on Aug. 12, was assigned to CARBO CERAMICS INC. (Houston).
"Methods for differentiating and quantifying non-radioactive tracers downhole" was invented by Jeremy Zhang (Katy, Texas) and Harry D. Smith Jr. (Spring, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure is directed to methods for evaluating a gravel pack, a frac-pack, or cement in a wellbore. In at least one embodiment, a method for evaluating a gravel pack, frac-pack or cement in a wellbore, includes pumping a first material into the wellbore, wherein the first material comprises a first tracer that is not radioactive. The method includes pumping a sec...