Microbial Diversity Under the Influence of Natural Gas Storage in a Deep Aquifer.

ABSTRACT: Deep aquifers (up to 2km deep) contain massive volumes of water harboring large and diverse microbial communities at high pressure. Aquifers are home to microbial ecosystems that participate in physicochemical balances. These microorganisms can positively or negatively interfere with subsurface (i) energy storage (CH₄ and H₂), (ii) CO₂ sequestration; and (iii) resource (water, rare metals) exploitation. The aquifer studied here (720m deep, 37°C, 88bar) is naturally oligotrophic, with a total organic carbon content of <1mg.L^-1 and a phosphate content of 0.02mg.L^-1. The influence of natural gas storage locally generates different pressures and formation water displacements, but it also releases organic molecules such as monoaromatic hydr

SUBMITTER: Ranchou-Peyruse M 

PROVIDER: S-EPMC8549729 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature