FIELD: technology for well examination of liquid substances.
SUBSTANCE: sensor has at least one comparing electrode and at least one connector between comparing electrode and measuring electrode, while said electrodes and connector form potentiometric sensor which during operation is subject to effect of well flow through aperture or channel for picking samples, and in which a connector is capable of providing for continuous conducting way between comparing electrode and measuring electrode in presence of flow containing hydrocarbon. Well tool for measuring characteristic parameter of well flow includes said sensor.
EFFECT: effective sensor and tool for performing potentiometric measurements in subterranean well.
2 cl, 15 dwg
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