FIELD: compositions based on high-molecular compounds, specifically, water-absorbing acryl copolymers used in processes of insulation of oil and gas wells. SUBSTANCE: composition to change permeability of pools has water-absorbing copolymer, oxidizing agent, alkaline agent with following proportion of components, per cent by mass: acryl copolymer 0.1-5.0; oxidizing agent 0.001-0.4; alkaline agent 0.001-0.2; water being the balance. Usage of proposed composition leads to change of permeability of productive pool under high temperature and mineralization of stratal water in wide range of controlled time, to sealing of well for 18-36 h to conduct drilling and repair operations with subsequent restoration of permeability of pool after 24-48 h. EFFECT: improved efficiency of composition. 1 cl, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
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