FIELD: obtaining oil from wells.
SUBSTANCE: invention relates to oil industry, particularly to heavy well killing fluids. In particular, disclosed is a method of producing a heavy liquid for killing wells, comprising mixing two salt solutions with a molar ratio of the sum of salts included in the first solution to the sum of salts included in the second solution of 0.5-1.3:2, evaporation of the solution obtained as a result of mixing to density of 1400-2650 kg/m3, evaporated solution cooling to temperature less than 25 °C with formation of sediment and filtration of evaporated solution with production of filtrate in form of heavy liquid for well killing.
EFFECT: method disclosed in the invention enables to obtain a heavy liquid for killing wells using available salt solutions, wherein the obtained liquid has the necessary characteristics for effective killing of a well.
7 cl, 2 dwg, 4 tbl
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