PROCESS TO INCREASE PETROLEUM RECOVERY FROM PETROLEUM RESERVOIRS

摘要

This invention refers to a process as wellas to the equipment required to enhance the recovery ofpetroleum from onshore and offshore reservoirs. The pro-cess includes the simultaneous stimulation of the forma-tion by means of elastic sound waves, created by a sonicsource installed at the oil well so that the elasticsonic waves which are superimposed reduce the adherenceforces in the layer between oil/water and the rock forma-tion, and by means of the oscillating electrical stimula-tion of the same layer, as from the same wells subject tosonic treatment, where the electricity heats the formationby means of resistive heating, and thus increases thepressure, eliminating, thus, the surface tensions betweenthe faces of the fluid as a consequence of the oscillatoryaction of the ions in the surfaces of the fluid and, inaddition, reducing the viscosity of the fluids. The pro-cess is achieved as the petroleum is produced in the wellsthus treated, and the flow of petroleum acts then as acooling agent which removes the heat released by the wellarea and thus allows a larger input of energy than in anyother method known so far.