ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,398,619, issued on Aug. 26, was assigned to Halliburton Energy Services Inc. (Houston).
"Single-trip deployment and isolation using a ball valve" was invented by Francois Chevallier (Dhahran, Saudi Arabia) and Ibrahim El Mallawany (Alkhobar, Saudi Arabia).
According to the abstract* released by the U.S. Patent & Trademark Office: "A downhole deployment and isolation system may be used to deploy a completion string, service the well, and isolate the lower completion string, optionally in a single trip. The lower completion string may be run into the well with a valve in an open condition, such as a ball valve propped open by a mandrel. The mandrel may be operable to both disconnect th...