Hydraulic properties measurement of tight sandstone for CO2 geological storage

Yu, Ju Hyeon; Choi, Jun Hyung; Shinn, Young Jae; Lee, Dong Hoon

doi:10.1007/s12303-015-0063-9

Cited by 6 publications

(1 citation statement)

References 12 publications

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“…When constant upstream and downstream flow rates were achieved, the pressure difference between upstream and downstream was measured using a pressure transducer. The injection of a compressible gas (e.g., nitrogen gas) can result in overestimation of gas permeability compared to the measurement of liquid permeability, due to the presence of the gas slip effect [24]-a larger effect is typically observed at a lower permeability [25]. Therefore, gas permeability was calibrated to account for the gas slippage effect based on a Klinkenberg calibration.…”

Section: Broadband Rock Permeability Measurement Systemmentioning

confidence: 99%

Directional Hydraulic Characteristics of Reservoir Rocks for CO2 Geological Storage in the Pohang Basin, Southeast Korea

Choi

Lee

Shinn³

et al. 2021

Energies

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This study conducted core sampling of an offshore borehole for geological reservoir characterization of a potential CO2 storage site in southeast Korea. From this, two promising geological formations at ~739 and ~779 m were identified as prospective CO2 storage reservoirs. Injection efficiency and CO2 migration were evaluated based on directional measurements of permeabilities from core plugs. The directional transport properties were determined using both a portable probe permeameter and a pressure cell capable of applying different in situ confining pressures. Both steady state and unsteady state measurements were used to determine permeability—the method selected according to the expected permeability range of the specific sample. This expected range was based on rapid screening measurements acquired using a portable probe permeameter (PPP). Anticipated performance of the prototypical CO2 injection site was evaluated based on flow modeling of the CO2 plume migration pathway including CO2 transport through the overlying formations based on the measured directional hydraulic properties. These analyses revealed that the injection efficiency at a depth of 739 m was double that at 779 m. These correlations among and distributions of the directional permeabilities of the potential CO2 geological storage site can be utilized for the assessment of CO2 storage capacity, injectivity, and leakage risk.

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Section: Broadband Rock Permeability Measurement Systemmentioning

confidence: 99%