FIELD: oil production industry. SUBSTANCE: according to method, well is filled with oil. Acid solution is injected under pressure which is close to value of well casing string testing pressure. Injection is performed by portions: injected in first portion is acid solution of high concentration and in small volume, injected in second portion is acid solution of low concentration and in large volume. Final portion is pressure-forced by oil. Then technological delay is undertaken under pressure during 7-10 days for levelling profile of inflow or during not over 30 min for increasing permeability of down-hole zone of well. Development of well is performed by injecting alternating portions of air and oil into annular space. EFFECT: high efficiency. 2 cl
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Authors
Dates
1997-11-10—Published
1997-02-18—Filed