FIELD: oil and gas industry.
SUBSTANCE: when the method is being realised, at least one container is installed on the lowered equipment and then lowered to the well to the pre-determined distance from the well head and it includes a tracer mark, with further monitoring of wellbore fluid or gas for content of the tracer mark. The container housing is made from the material capable of being dissolved or decomposed under action of water or gas and resistant to action of hydrocarbon medium.
EFFECT: increasing the obtained information on filtration in the formation and on ongoing processes in the well with concretisation in time and space.
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