US Patent Issued to SAUDI ARABIAN OIL on April 29 for "Fluorescent assemblies for drilling depth correlation" (Saudi Arabia, Italian, Russian Inventors)

ALEXANDRIA, Va., June 9 -- United States Patent no. 12,286,582, issued on April 29, was assigned to SAUDI ARABIAN OIL COMPANY (Dhahran, Saudi Arabia).

"Fluorescent assemblies for drilling depth correlation" was invented by Vera Solovyeva (Moscow), Nouf Jabri (Dhahran, Saudi Arabia), Alberto Marsala (Venice, Italy) and Klemens Katterbauer (Dhahran, Saudi Arabia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A composition of matter including a fluorescent assembly and a drilling fluid is provided. The fluorescent assembly includes a matrix material and a plurality of fluorophores held within the matrix material and has an average particle size of at least one millimeter. A method includes introducing the fluor...