METHOD FOR ACOUSTIC STIMULATION OF BOTTOM-HOLE ZONE OF PRODUCING FORMATION Russian patent published in 1995 - IPC

FIELD: gas and oil producing industry. SUBSTANCE: method for acoustic stimulation of bottom-hole zone of producing formation includes stimulation of formation well zone by acoustic field. Before formation treatment, filtration properties of bottom-hole zone are measured, and noted are the sections with low filtration properties. Formation is treated successively in separate points in direction from top to bottom by multiple radiation of bottom-hole zone sections with low filtration properties by acoustic field with intensity of 0.2 W/sq.cm. In so doing, after each irradiation, the filtration properties are measured and dynamics of their recovery is determined, and the intensity and time of stimulation with acoustic field is increased in compliance with measurement results up to the moment of stabilization of filtration properties. EFFECT: increased productivity of formation due to recovery of filtration properties of its bottom-hole zone. 1 dwg