FIELD: oil and gas industry.
SUBSTANCE: losses of liquid caused by leakages Q1 and Q2 are measured at different heights of column of liquid in a tube column, and the distance from the well head to a leakage point is determined, for instance, out of a reduced mathematical expression on ratio of measured losses Q1 and Q2.
EFFECT: reduced time losses for location of leakage and possibility to pinpoint locations of small leakages.
1 ex
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