Seismically induced fault leakage from the Val d'Agri hydrocarbon reservoir (Southern Italy) DOI Creative Commons
Giulia Schirripa Spagnolo, F. Gori, Marino Domenico Barberio

и другие.

The Science of The Total Environment, Год журнала: 2025, Номер 975, С. 179193 - 179193

Опубликована: Март 31, 2025

Hydrocarbon leakage from reservoirs poses significant environmental and societal problems, including the potential contamination of drinking water agricultural soils. Distinguishing between natural anthropogenic is challenging but crucial for assessing human impacts on reservoir seal integrity developing effective mitigation strategies. To address this issue, study presents an innovative approach that combines traditional groundwater analyses with fluid inclusion investigation to evaluate hydrocarbon seepage in both present past shallow fluids, providing insights into long-term sealing history. The Val d'Agri oil field Southern Italy, environmentally sensitive area where suspected, serves as ideal case study. Raman spectroscopy inclusions Pleistocene-Holocene fault-related calcite veins reveals entrapment saturated hydrocarbons minor aromatic components, similar those current reservoir. This indicates temporary breaches occurred naturally geological (earlier than extraction), likely due fault-valve action during strong earthquakes. Hydrogeochemical indicate San Giovanni spring, located near productive wells, exhibits negative δ34S(SO4) (-14.20 ‰) δ13Cdeep (-11.8 values, along a high CO2 concentration (5.4 mmol/L). These results methane oxidation related mixing hydrocarbons, released seismic events, meteoric fluids. findings highlight importance reconstructing pre-production processes assess hazards more effectively, particularly seismically active, hydrocarbon-rich regions such Basin.

Язык: Английский

Seismically induced fault leakage from the Val d'Agri hydrocarbon reservoir (Southern Italy) DOI Creative Commons
Giulia Schirripa Spagnolo, F. Gori, Marino Domenico Barberio

и другие.

The Science of The Total Environment, Год журнала: 2025, Номер 975, С. 179193 - 179193

Опубликована: Март 31, 2025

Hydrocarbon leakage from reservoirs poses significant environmental and societal problems, including the potential contamination of drinking water agricultural soils. Distinguishing between natural anthropogenic is challenging but crucial for assessing human impacts on reservoir seal integrity developing effective mitigation strategies. To address this issue, study presents an innovative approach that combines traditional groundwater analyses with fluid inclusion investigation to evaluate hydrocarbon seepage in both present past shallow fluids, providing insights into long-term sealing history. The Val d'Agri oil field Southern Italy, environmentally sensitive area where suspected, serves as ideal case study. Raman spectroscopy inclusions Pleistocene-Holocene fault-related calcite veins reveals entrapment saturated hydrocarbons minor aromatic components, similar those current reservoir. This indicates temporary breaches occurred naturally geological (earlier than extraction), likely due fault-valve action during strong earthquakes. Hydrogeochemical indicate San Giovanni spring, located near productive wells, exhibits negative δ34S(SO4) (-14.20 ‰) δ13Cdeep (-11.8 values, along a high CO2 concentration (5.4 mmol/L). These results methane oxidation related mixing hydrocarbons, released seismic events, meteoric fluids. findings highlight importance reconstructing pre-production processes assess hazards more effectively, particularly seismically active, hydrocarbon-rich regions such Basin.

Язык: Английский

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