Abstract

The results of studies of sedimentary strata carbonatization in oil- and gas-bearing basins are generalized. The sources of CO2, H2CO3, and organic acids, which regulate the carbonate balance in stratum waters at the stages of diagenesis and catagenesis, as well as under the influence of superposed processes, including those with the participation of microorganisms, are considered. The scale of secondary carbonatization of deposits in the zone of water-oil contacts and in the interval of hydrothermal action is estimated.

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