ALEXANDRIA, Va., June 16 -- United States Patent no. 12,305,504, issued on May 20, was assigned to Saudi Arabian Oil Co. (Dhahran, Saudi Arabia).
"Quantifying zonal flow in multi-lateral wells via taggants of fluids" was invented by Sehoon Chang (Boston), Wei Wang (Quincy, Mass.) and Bora Yoon (Watertown, Mass.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of quantifying zonal flow in a multi-lateral well is described. A first taggant is flowed to a first lateral, and a second taggant is flowed to a second lateral. A first produced fluid that includes the first taggant is flowed from the first lateral into a production tubing. A second produced fluid that includes the second taggant is flowed from ...