FIELD: industrial geophysics, possible use for increasing precision of interval limit detection and increasing perforation quality of casing string of well.
SUBSTANCE: in accordance to method, artificial electronic filtration potentials are induced simultaneously by means of acoustic influence on well space. Electric potential gradient is registered between measuring electrodes with 0,5 meter spaces between them relatively to grounded comparison electrode. On basis of change of value of electric potential after perforation, limits are determined and degree of connection of formation to internal surface of casing string is evaluated.
EFFECT: increased precision when determining limits of perforation interval, increased information capacity of geophysical research including estimation of hydro-dynamic connection of formation to internal cavity of casing string.
2 dwg
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