Journal Articles Proceedings of the National Academy of Sciences of the United States of America Year : 2018

Mesoscale structure, mechanics, and transport properties of source rocks’ organic pore networks

Abstract

Significance In source rocks, natural hydrocarbons are generated from organic matter dispersed in a fine-grained mineral matrix. The potential recovery of hydrocarbons is therefore influenced by the geometry of the organic hosted porous networks. Here, the three-dimensional structures of such networks are revealed using electron tomography with a subnanometer resolution. The reconstructions are first characterized in terms of morphology and topology and then used to build a multiscale simulation tool to study the mechanics and the transport properties of confined fluids. Our results offer evidence of the prevalent role of connected nanopores, which subsequently constitutes a material limit for long-term hydrocarbon production.

Dates and versions

hal-03893030 , version 1 (10-12-2022)

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Jeremie Berthonneau, Amaël Obliger, Pierre-Louis Valdenaire, Olivier Grauby, Daniel Ferry, et al.. Mesoscale structure, mechanics, and transport properties of source rocks’ organic pore networks. Proceedings of the National Academy of Sciences of the United States of America, 2018, 115 (49), pp.12365-12370. ⟨10.1073/pnas.1808402115⟩. ⟨hal-03893030⟩
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