ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,378,831, issued on Aug. 5, was assigned to PROSHALE LLC (Spring, Texas).
"Fluid-driven dual-mode circulation tool" was invented by Martin Mauro Nebiolo (Neuquen Capital, Argentina), Christian Cerne (Spring, Texas), Gustavo Dietrich (Neuquen Capital, Argentina) and Cristian Brendstrup (Neuquen Capital, Argentina).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fluid-driven dual-mode circulation tool which is selectively operable to switch between annular flow mode and flow-thru mode is disclosed. In the annular flow mode, fluid exits the sidewalls of the tool through one or multiple apertures. A ratchet path having mated peaks and valleys on the surface o...