INTENSIFICATION METHOD FOR FLUID EXTRACTION FROM WELL Russian patent published in 2004 - IPC

FIELD: gas and petroleum extracting industry. SUBSTANCE: method includes second opening of given well by means of boring new perforated passages of diameter, depth and denseness needed for getting planned petroleum output. For getting maximum fluid output from the well, length of perforated passage is selected on condition of its emergence past the dirty bottom hole area of layer and joining up operation with layer pressure. Perforated passage diameter is selected on condition of obstruction resistant operation and self-cleaning of passage due to layer pressure effect. Denseness of perforated passages is selected from condition of estimated equation or exceeding of total area of inner walls and passage bottom formed by means of traditional technology with diameter of 10 mm, length of 350 mm and denseness of 10 passages on 1 meter of column length. EFFECT: increased fluid influx when opening well for a second time.