What question did this study set out to answer?

To assess the thermo-poromechanical response of Pierre II shale under simulated in-situ carbon capture and storage conditions.

August 10, 2022Rock Mechanics and Rock EngineeringOpen Access

Thermo-Poromechanical Properties of Pierre II Shale

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Authors

NANicolaine AgofackSINTEF PCPierre CerasiSINTEF ESE. F. SønstebøSINTEF

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Implication

Experimental study demonstrates anisotropic thermal expansion and significant thermal pressurization in Pierre II shale caprock, highlighting risks to seal integrity during carbon dioxide storage.

Key Points

To assess the thermo-poromechanical response of Pierre II shale under simulated in-situ carbon capture and storage conditions.
Subjected Pierre II shale samples to confining and initial pore pressures representative of field conditions.
Applied a 60 °C thermal loading cycle spanning 30 °C to 90 °C under both drained and undrained conditions.
Modeled experimental observations using an anisotropic thermo-poro-elastic theoretical framework.
Observed directional anisotropy in the shale's thermal expansion coefficients and Skempton coefficient.
Measured a thermal pressurization coefficient generating pore pressure increases of up to 0.11 MPa/°C under undrained heating.

Cite This Study

Agofack et al. (2022) studied this question.

synapsesocial.com/papers/6aa297dd395a42d3a7fdca10 https://doi.org/10.1007/s00603-022-02994-6

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Implication

Experimental study demonstrates anisotropic thermal expansion and significant thermal pressurization in Pierre II shale caprock, highlighting risks to seal integrity during carbon dioxide storage.

Thermo-Poromechanical Properties of Pierre II Shale

Discussion

Member takes

Implication

Key Points

Cite This Study

Thermo-Poromechanical Properties of Pierre II Shale

Discussion

Member takes

Implication

Key Points

Cite This Study

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