FIELD: oil-and-gas industry.
SUBSTANCE: invention relates to oil industry and can be used in developing of oil pools. This method comprises development of vertical production and injection wells, construction of additional shafts from vertical wells, injection of working agent through additional shafts of injection wells and extraction of products via production well additional shafts. In compliance with this invention, lateral shafts are built as horizontal inclined shafts with ascending open bottom holes wherein hydro fracturing is performed with subsequent re-exposure of cased section of additional well shafts. Note here that deposit drainage area is increased owing to fracturing at open shaft end so that bottom-hole pressure is distributed uniformly along inclined shaft to allow oil inflow from open shaft and, then, from created fracture at open shaft end.
EFFECT: higher yield and efficiency.
1 ex, 2 dwg
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