FIELD: oil and gas industry.
SUBSTANCE: invention relates to oil industry, in particular, to compositions for isolation of water influx in production wells and treatment of injection wells in order to level acceleration profile and increase coverage of beds by flooding. Composition contains 5–20 wt% of liquid glass with silicate module 2.7–3.5, 0.5–1 wt% over 100 % sodium aluminate and 80–95 wt% of water.
EFFECT: increased efficiency of isolation of water influx into well and manufacturability due to increased strength of composition at controlled time of gel formation at low reservoir temperature and simplified preparation.
1 cl, 1 tbl
| Title | Year | Author | Number |
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