20150083388 | STEAM-IMPULSE PRESSURE GENERATOR FOR THE TREATMENT OF OIL WELLS - A steam-impulse pressure generator includes a burnable membrane separating (1) a heat-generating device, which is an hermetic enclosure, the cavity of which is filled with heat-generating blocks, from (2) a steam-kinetic chamber, which is a non-hermetic, open enclosure, with windows (nozzles), evenly distributed over the entire surface, with the minimum dynamic resistance for an exit of the steam-water mixture, while offering as much interference as possible against the melted material exiting into the well. High temperature melt coming from the main body makes direct contact with the borehole fluid causing a hydrodynamic disturbance of high-intensity in the form of series of steam-pressure pulses, which penetrates into the bottom-hole formation zone (“BFZ”) and improves the filtration properties of the rock formation not only and not so much by the removal of the wax, paraffin and resin depositions, but rather because of layer microruptures in the BFZ. | 03-26-2015 |