Late-epigenetic framboidal pyrites in deep-lying reservoirs of gas-condensate pools
DOI:
https://doi.org/10.15407/dopovidi2018.08.076Keywords:
framboidal pyrite, gas-condensate hydrocarbon systems, late-epigenetic processes, secondary reser voirsAbstract
The presence of framboidal pyrites within the pore space of deep-lying (4500-6500 m) secondary reservoirs of gas-condensate pools has been found. It belongs to the terminal late-epigenetic mineral new formations. This is not only the sign of specific tectonophysical and geothermobaric conditions at great depths, but the indicator of the processes of self-cleaning of deep-seated gas-c ondensate systems from hydrogen sulphide as a resul t of its reactions with Fe2+ cations of condensed hydrocarbon waters connected with the deep hydrogeologic inversion.
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