FIELD: oil and gas production.
SUBSTANCE: invention relates to compositions for treating well bottom zone and performing water shutoff operations. Composition of invention contains 5-30% of naphthenic acid of its salt, 5-30% of an additional reagent (Galka-Termogel), and water. Composition can further contain water-dissolved calcium chloride in amounts 5 to 15%.
EFFECT: enhanced composition efficiency due to enabled gelation time and viscosity growth control, extended application area, and utilized petrochemical production waste.
2 cl, 1 tbl, 3 ex
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Authors
Dates
2006-02-20—Published
2004-08-24—Filed