ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,486,728, issued on Dec. 2, was assigned to Schlumberger Technology Corp. (Sugar Land, Texas).
"Production selective landing tool" was invented by Mikhail Gotlib (Houston), Li Xue (Shanghai), Yi Ming Zhao (Shanghai), Kjell Revheim (Bucharest, Romania) and Thales De Oliveira (Abu Dhabi, United Arab Emirates).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method and apparatus for landing and orienting a production selective landing tool (PSLT) within a well casing. The well casing is provided with one or more indexing casing coupling (ICC). The PSLT is included in a completion string. The PSLT has several landing keys and an orientation key. The PSLT is co...