摘要 |
FIELD: oil extracting industry. SUBSTANCE: for increasing operation area by means of oil layer flooding with zonal non-homogeneous penetrability force-pumping well is selected in most penetrable zone of non-homogeneous layer with ratio of penetrabilities in perforated interval of no more than 1.5, and having at least one interacting extraction well flooded no more than for 80%. At radius of 25 meters around the well, amount of mortar slurry is injected equaling 0.5 of cubic capacity of pores of water accepting intervals with slurry amount of 25-105 kg in cubic meter depending on penetrability, with 50% filling of pores of collector of water accepting intervals of layer. Injected slurry is compacted by pushing it to depth of 20 meters by feeding amount of water equal to one cubic capacity of pores of water accepting intervals of layer. Water is fed under pressure of 10- 20%, which surpasses pressure of slurry injection into the well. EFFECT: increased oil yield.
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