FIELD: oil producing industry; applicable in performance of works involved in equalization of injectivity profile in injection wells and inflow profile in producing wells. SUBSTANCE: method includes injection of plugging material resistant to acid under formation conditions, and injection of acid. Acidproof plugging material is used in form of clay-base material. Plugging material is forced into water-encroached interval of bottomhole zone by fresh water and process is let to be completed under pressure of fresh water. With maintained pressure of water forcing, new portions of plugging material are forced by fresh water until increase in water forcing. Then, well producing interval is subjected to general acid treatment. EFFECT: fuller equalization of profiles of injectivity or inflow in well.
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF TREATMENT OF WELL BOTTOM-HOLE ZONE | 2002 |
|
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