FIELD: oil and gas industry.
SUBSTANCE: acoustic method of detection of fluid behind-casing flows location in well includes lowering and lifting of well noise signal receiver in well. During lifting curves of noise signal intensity changes are recorded, then the signal is processed using secondary equipment. Noise signal well receiver is lifted with constant certain speed V1. The receiver has highly-directional characteristic of direction, orthogonal to well axis. Output signal is processed by extraction from recorded noise signal of characteristics of receiver passing relative to location of fluid behind-the-casing flow for this speed V1.
EFFECT: simplifying implementation and improving method reliability.
5 cl, 3 dwg
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