METHOD OF DIAGNOSIS OF EMERGENCY STATE OF RESERVOIRS Russian patent published in 2010 - IPC G01N17/02 

FIELD: testing equipment.

SUBSTANCE: presented invention refers to chemical industry and may be used for diagnosis of emergency state of reservoirs subjected to pitting corrosion. Method of diagnosis of emergency state of reservoirs in corrosive environment includes location of tri-electrode system in it, which consists of working electrode, subsidiary electrode and comparison electrode, by means of successive determination of working electrode potential in open circuit, of pitting potential, of margin of pitting resistance by potential as difference between pitting potential and potential of open circuit, and threshold value of potential of working electrode within margin of pitting resistance by potential; at that after determination of threshold value of potential of working electrode, electrode is maintained at this value of potential, then potential of working electrode is displaced from threshold value of potential to potential of open circuit and in opposite direction, at that values of current intensity and potential are recorded, upon which at determined value of potential comparison of value of current intensity of straight and opposite direction is performed, and if value of current intensity of straight direction exceeds value of current intensity of opposite direction, emergency state of reservoir is determined.

EFFECT: improvement of validity and simplification of method of diagnosis of emergency state of reservoirs.

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