FIELD: oil and gas industry.
SUBSTANCE: method involves hydraulic fracturing of a separate broken manifold layer of underground formation in order to provide heterogeneous arrangement of a propping agent, at which columns of propping agent are arranged so that they are not spread throughout the fracture height (for vertical fracture), but are interrupted with channels between columns forming tracks leading to the well shaft. The method combines methods of introduction of plugs of the liquid carrying the propping agent, and liquid without any propping agent through multiple clusters of perforations in a single broken layer of the rock with the methods preventing merging of plugs leaving separate clusters.
EFFECT: improving the efficiency of hydraulic fracturing.
43 cl, 12 dwg
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