FIELD: oil and gas industry.
SUBSTANCE: for intensification of wells operation multi-component depression devices are used. In productive formation they form depression zones with distance of up to 100 metres and more with depression value within 0.1-0.9 of hydrostatic pressure, with depression duration of 0.3-3.5 seconds and more under factor of impact on formation of up to 4.5 and more creating thus depression-hydrogasdynamic impact in controlled mode to open existing cracks and create new cracks. Also involvement of dead-stagnant oil-saturated sections in development is provided. At that extraction of colmatant and rock specimen from well bore zone of productive formation is performed as well as allotment of fracture zones and their connection to geological section.
EFFECT: increasing degree of oil-and-gas inflow intensification due to cleaning of perforated channels and depression controllability.
8 cl, 7 dwg
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