| 摘要 |
FIELD: oil production, particularly enhanced recovery methods for obtaining hydrocarbons. ^ SUBSTANCE: method involves preparing development sections by drilling injection and producing wells in each section and injecting water for oil displacement into each producing well bottom; drilling horizontal producing well at one end of development section near reservoir roof so that horizontal producing well bore is parallel to oil-water contact outline. The injection well is horizontal and has bore arranged at opposite end of development section near oil-water contact outline and parallel to oil-water contact outline and horizontal producing well. Polymer and water plugs are alternately injected into injection well. Producing well is operated with drawdown exceeding critical water-free reservoir drawdown. Plugs are injected under well bottom pressure exceeding initial reservoir pressure. ^ EFFECT: increased efficiency of oil field development. ^ 2 cl, 1 ex, 1 tbl, 7 dwg |
