FIELD: oil and gas industry.
SUBSTANCE: while implementing the method a system consisting of temperature sensors and heat/cooling sources distributed along the well length are installed in a well. In order to determine the profile of formation a fluid inflow, when the well is operated for extraction distributed heat/cooling sources are switched on for the preset time using heat indicator marks and then the travel and change rate of heat indicator marks in the well is measured using temperature sensors. The flow travel rate in the well is calculated against the measured values, and the rate value is used for the determination of the well operational characteristics.
EFFECT: simplifying the method with the simultaneous increase of its data content.
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