FIELD: oil and gas industry.
SUBSTANCE: invention is referred to oil and gas industry, in particular, to methods limiting water influx to oil and gas wells and balancing injectivity profile. In the formation permeability control method consisting in sequential injection of emulsifying or suspension plug to the formation through an injector or producer; treatment is made simultaneously from the injectors side and producers side at the site; the compound with the following composition, wt %, is used as the emulsifying plug: Addinol-10 4.0, CaCl2 4.0, stock oil 20.0, process water 72.0, and the following composition is used as suspension with the following ratio of the components, wt %: natural fine chalk stone of M-3 brand - 5.0, process water - 95.0.
EFFECT: reduced permeability of flooded reservoir with highly permeability.
2 ex, 3 tbl
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Authors
Dates
2014-11-20—Published
2013-02-01—Filed