FIELD: gas industry.
SUBSTANCE: invention relates to gas industry, in particular to compositions with condensed solid phase for temporary isolation of reservoir when killing wells with terrigenous reservoir of non-uniform permeability, including clay minerals, and reservoir temperatures up to 150°C. Composition consists of following components, mass%: carboxymethylcellulose 0.5-4.0, calcium chloride 7-12, potassium phosphate dibasic 21-25, sodium lauryl sulfate 0.5-1.2, water - balance.
EFFECT: technical result is increase in efficiency of temporary isolation of productive formation in wells, preservation of reservoir filtration-capacitive properties, possibility of using composition over wide range of reservoir temperatures, Increase of manufacturability of repair work.
1 cl, 1 tbl, 4 ex
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