Key words: carbonate reservoir, natural fracturing, fractures opening, bottom-hole pressure, fractures permeability.
Wells flow indexes, reservoir permeability, natural fractures opening dependence on bottom-hole and lateral rock pressures ratio is established during the analysis of data, characterizing operation of producing wells of Tournaisian-Famennian deposit of Ozyornoye field. It is shown, that the deposit in the borehole zones is transformed from the fractured-porous type into the porous one at decreasing of bottom hole pressures and natural fractures closing during the reservoir deformation.
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