ALEXANDRIA, Va., March 26 -- United States Patent no. 12,258,831, issued on March 25, was assigned to PROSHALE LLC (Spring, Texas).
"Down-hole extended reach tool generating variable shock wave amplitudes" was invented by Martin Mauro Nebiolo (Neuquen Capital, Argentina), Christian Brendstrup (Neuquen Capital, Argentina), Christian Cerne (Spring, Texas) and Gustavo Dietrich (Neuquen Capital, Argentina).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fluid-driven multi-mode extended reach vibration tool is selectively operable to control generating shock waves of different amplitudes by a downhole motor or shock-wave generating tool. Interrupting and then reinstating flow of pressurized fluid through the tool...