FIELD: oil-and-gas industry.
SUBSTANCE: invention relates to development of oil pools with oil-in-water systems. Method includes drilling, at least, one horizontal extracting and fill-in wells, injecting superseding agent through fill-in well and extraction of products through extracting wells. Extracting horizontal well is arranged parallel to oil-to-water contact at a distance that allows placing the well on production with waterless period. Fill-in vertical or horizontal well is arranged above extracting well in productive strata top of oil horizon and superseding agent is forced with specific weight lower than that of edge waters.
EFFECT: longer oil waterless production period, higher oil yield, higher efficiency.
2 ex, 2 dwg
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Authors
Dates
2010-04-27—Published
2009-02-04—Filed