July 25, 2025Open Access

Use of Depleted Oil and Gas Reservoirs as Bioreactors to Produce Hydrogen and Capture Carbon Dioxide

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Bioreactors convert residual hydrocarbons into hydrogen in depleted oil reservoirs, suggesting a path to CO2 capture.

Depleted oil reservoirs serve as bioreactors for hydrogen production using indigenous microbiota.
The process involves microbial conversion of residual hydrocarbons, promoting renewable hydrogen generation.
Strategies like nutrient modulation enhance hydrogen generation while addressing risks of CO2 and H2S.
Infrastructure reuse can lower costs, but overcoming biotechnological challenges is critical for economic viability.

Sampaio et al. (2025) studied this question.

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