ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,747,641, issued on Sept. 29, was assigned to Schlumberger Technology Corp. (Sugar Land, Texas).
"Electro-mechanical disconnect mechanism" was invented by Wei Dai (Sugar Land, Texas), Alyssa Ellis (Sugar Lang, Texas) and Majid Salesi (Sugar Land, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a downhole system incorporating an electromagnetic disconnect (EMD). The EMD features an actuator rod, a latch mechanism, and a magnetic solenoid, enabling controlled and selective electrical and/or mechanical disconnect of downhole tools. When activated by an electric current, the solenoid triggers the retraction of spring-loaded com...