FIELD: oil and gas industry.
SUBSTANCE: method for stabilising intake capacity profile of pressure well includes preparation and injection of sediment-forming reagent into the formation and causing sedimentation in formation conditions at a temperature not lower than 80°C. The sediment-forming reagent is 20-50 wt % aqueous solution of calcium chloride and sulfamic acid mixture or its ester of general formula R-O-SO3-NH4, where R-CH3, C2H5 or C3H7 taken in mass ration of (30-70):(70-30).
EFFECT: increase insulation screen length, increase in oil recovery due to sedimentation and plugging of fluid channels of remote zones.
2 tbl, 1 ex
| Title | Year | Author | Number |
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| METHOD OF EQUALIZING INJECTIVITY PROFILE | 1995 |
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| METHOD FOR INCREASING OIL RECOVERY OF FORMATIONS | 2022 |
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| METHOD FOR DEVELOPMENT OF OIL DEPOSIT | 1996 |
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