Assessment of oil and gas fields in California as potential CO2 storage sites

Kim, Tae Wook; Callas, Catherine; Saltzer, Sarah D.; Kovscek, Anthony R.

doi:10.1016/j.ijggc.2022.103579

Cited by 20 publications

(1 citation statement)

References 17 publications

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“…Shale reservoirs represent a significant resource for utilizing and storing CO 2 in the subsurface. , The low porosity and low permeability of shale formations make them natural geologic barriers for the upward transport of fluids and gases. Shale caprocks overlying sedimentary units with greater porosity and permeability could act as seals over the timescales necessary to confine CO 2 .…”

Section: Introductionmentioning

confidence: 99%

Effects of Supercritical CO₂ Injection on the Shale Pore Structures and Mass Transport Rates

et al. 2022

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Characterizing the pore structures and transport properties of low-permeability shales is critical for evaluating these formations as potential seals or storage sites for geological CO2 sequestration. Here, we use low-pressure gas adsorption in conjunction with nuclear magnetic resonance (NMR) to characterize the pore-size distribution of shales before and after injection of supercritical CO2. Nitrogen gas was used as the detecting phase for the adsorption experiments and pentane liquid was used for the NMR experiments. We also performed time-resolved NMR and gravimetric microbalance measurements to observe mass transport during desaturation. We use these data to estimate the self-diffusion coefficient of pentane and changes in the saturation state of the pore network. We analyzed samples with a range of compositions from the Wolfcamp shale before and after exposure to supercritical CO2 for 3 days. Integrating the gas adsorption and NMR data shows how supercritical CO2 injection alters the pore-size distribution for pore sizes <1 nm to 1 mm. Our results provide insights on how the pore structure and mass transport properties of different shale lithologies may evolve during storage of supercritical CO2.

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Section: Introductionmentioning

confidence: 99%

Effects of Supercritical CO₂ Injection on the Shale Pore Structures and Mass Transport Rates

et al. 2022

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Advances in carbon bio-sequestration

Twi-Yeboah¹,

Osei

Danquah

2023

Green Sustainable Process for Chemical and Environmental Engineering and Science

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Criteria and workflow for selecting depleted hydrocarbon reservoirs for carbon storage

et al. 2022

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Assessment of oil and gas fields in California as potential CO2 storage sites

Cited by 20 publications

References 17 publications

Effects of Supercritical CO₂ Injection on the Shale Pore Structures and Mass Transport Rates

Effects of Supercritical CO₂ Injection on the Shale Pore Structures and Mass Transport Rates

Advances in carbon bio-sequestration

Criteria and workflow for selecting depleted hydrocarbon reservoirs for carbon storage

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Assessment of oil and gas fields in California as potential CO2 storage sites

Cited by 20 publications

References 17 publications

Effects of Supercritical CO2 Injection on the Shale Pore Structures and Mass Transport Rates

Effects of Supercritical CO2 Injection on the Shale Pore Structures and Mass Transport Rates

Advances in carbon bio-sequestration

Criteria and workflow for selecting depleted hydrocarbon reservoirs for carbon storage

Contact Info

Product

Resources

About

Effects of Supercritical CO₂ Injection on the Shale Pore Structures and Mass Transport Rates

Effects of Supercritical CO₂ Injection on the Shale Pore Structures and Mass Transport Rates