FIELD: oil extractive industry.
SUBSTANCE: method includes complex use of measuring of natural electrical potentials in well-adjacent area and vibroacoustic cement bond logging of wells. By measuring natural electrical potentials presence and direction of behind-column liquid flows is determined in the well. By vibroacoustic cement bond logging well construction elements are determined and ranges of behind-column cement are localized, which are source of pollution and which are subject to correcting cementation.
EFFECT: higher efficiency.
9 dwg
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