FIELD: oil and gas extractive industry, possible use during operation of wells with anti-corrosive liquid in inter-tubular space, during control of pressurization of cased wells, during control of integrity of anti-corrosive liquid in force wells.
SUBSTANCE: in accordance to method, working agent is forced in, mouth pressure is measured, pressure in inter-tubular space is measured and well parameters are determined. Working agent flow at well mouth is measured. As parameter being measured, volume of anti-corrosive liquid in inter-tubular space is selected, which is computed using analytical formula. Also determined from analytical formula are pressure losses during passage of working agent through well column.
EFFECT: preservation of well operation mode and simplification of measurements, possible determining of volume of anti-corrosive liquid present at current moment in inter-tubular well space.
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