Impact of microbial-rock-CO2 interactions on containment and storage security of supercritical CO2 in carbonates

Kolawole, Oladoyin; Millikan, Cecil; Kumar, Mohit; Ispas, Ion; Schwartz, Brandon; Weber, Joachim; Badurina, Luka; Šegvić, Branimir

doi:10.1016/j.ijggc.2022.103755

Cited by 19 publications

(6 citation statements)

References 71 publications

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“…Previous pilot studies have demonstrated the potential of improving hydrocarbon production and recovery in oil and gas reservoirs with gas injection into shales. 53,54 In addition, CO 2 interaction with shales under supercritical conditions can result in increased porosity, 4,5,29,32,53 with a reduction in its mechanical properties such as unconfined compressive strength, Young's modulus, fracture toughness, and hardness. 4,6,55 Thus, the injection of CO 2 into immature shale before maturity as proposed in this study will induce in situ alterations over succeeding years with its minerals interacting with the CO 2 through dissolution and precipitation, and these changes will impact and weaken its mechanical properties, and this could rejuvenate the shale when mature in future years for CO 2 storage and/or increased hydrocarbon production through CO 2 -EOR.…”

Section: Implications For Co 2 Utilization and Sequestration In Shalementioning

confidence: 99%

“…The anthropogenic climate change due to greenhouse gas emissions can be combated with various proposed technologies to reduce atmospheric CO 2 , among which is by capturing CO 2 for utilization or injection in geologic media for long‐term storage 1–4 . Carbon dioxide (CO 2 ) is injected into shale formations (mostly mature Shales) for CO 2 ‐enhanced oil recovery (CO 2 ‐EOR) 5–7 or for CO 2 storage 8–13 .…”

Section: Introductionmentioning

confidence: 99%

“…he anthropogenic climate change due to greenhouse gas emissions can be combated with various proposed technologies to reduce atmospheric CO 2 , among which is by capturing CO 2 for utilization or injection in geologic media for long-term storage. [1][2][3][4] Carbon dioxide (CO 2 ) is injected into shale formations (mostly mature Shales) for CO 2 -enhanced oil recovery (CO 2 -EOR) [5][6][7] or for CO 2 storage. [8][9][10][11][12][13] Thermal maturation is a diagenetic process of heating a source rock, such as shale, thereby inducing temperature-time-driven reactions leading to the conversion of sedimentary organic matter to oil and gas.…”

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confidence: 99%

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CO₂‐Induced alterations due to thermal maturation in shale: Implications for CO₂ utilization and storage

Onwumelu,

Kolawole,

Bouchakour

et al. 2023

Greenhouse Gases

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Shales have low to ultra‐low porosity and permeability, which makes them an attractive candidate for CO2 utilization during CO2‐enhanced oil recovery (CO2‐EOR) or for geologic CO2 storage (GCS). Shale are source rocks, and thus, there is a continuous induced diagenetic process that can alter their properties as they reaches maturity at greater in situ temperature. However, there are significant knowledge gaps in the possibility of CO2 utilization during this diagenetic process (thermal maturation) to achieve long‐term CO2 storage. This experimental study investigates the potential for CO2 utilization in shale due to induced thermal maturation at in situ conditions, and the implications of pre‐maturation CO2 injection in shale for GCS and CO2‐EOR. Here, we used subsurface hydrocarbon‐rich Bakken and Green River shales exposed to CO2 for a specific period. This is followed by inducing the unexposed and CO2‐exposed shales to thermal maturity. Subsequently, we evaluated the total organic carbon (TOC), liberated hydrocarbons (S2), and the mineralogical and mechanical properties of the mature and CO2‐exposed mature shales. We further assessed the implications of CO2 utilization and storage in thermally matured Bakken and Green River shales for long‐term storage or CO2‐EOR. The results indicate that if CO2 is injected into shales before attaining maturity, higher hydrocarbon production and more significant mechanical weakness can be expected when they attain maturity in Bakken shales (+30% liberated hydrocarbons; −31% Young's modulus; −34% hardness) and Green Rivers shales (+8% liberated hydrocarbons; −40% Young's modulus; −30% hardness), and this is relative to Bakken and Green River shales without CO2 injection before attaining thermal maturity. Further, CO2‐exposed mature Bakken and Green River shales can alter the minerals in shales with the dissolution of dolomite and precipitation of calcite, which promotes mineral trapping and achieve a lower TOC (Bakken shale = −24%; Green River shale = −26%), and this is relative to Bakken and Green River shales without CO2 injection before attaining maturity. Analyses of the results suggest that the application of this proposed CO2 injection and utilization in immature shales could access more excellent CO2‐storage reservoirs in Bakken and Green River shales without waiting for a more extended period for the shales to become viable and mature, which is the case with the present GCS and CO2‐EOR operations in shale reservoirs globally. Also, our proposed pre‐maturation CO2 injection could rejuvenate mature shales for increased hydrocarbon production through CO2‐EOR, yield a greater sealing efficiency, and mitigate leakage risks for long‐term CO2 storage. The results from this study provide novel insights that can advance CO2 utilization for future GCS and/or CO2‐EOR in immature Bakken and Green River shales while at the same time providing an immediate and viable option for storage by depleting atmospheric CO2 to meet the global net‐zero by 2050. © 2023 Society of Chemical Industry and John Wiley & Sons, Ltd.

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Section: Implications For Co 2 Utilization and Sequestration In Shalementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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CO₂‐Induced alterations due to thermal maturation in shale: Implications for CO₂ utilization and storage

Onwumelu,

Kolawole,

Bouchakour

et al. 2023

Greenhouse Gases

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“…Bio-geo-chemical interactions [45,46] Interaction of host rock with supercritical CO 2 can alter properties of rocks and alter ductility and cohesion of rocks.…”

Section: Introductionmentioning

confidence: 99%

Comprehensive review of geomechanics of underground hydrogen storage in depleted reservoirs and salt caverns

Ramesh Kumar,

Honorio,

Chandra

et al. 2023

Preprint

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Hydrogen is a promising energy carrier for a low-carbon future energy system, as it can be stored on a megaton scale (equivalent to TWh of energy) in subsurface reservoirs. However, safe and eﬀicient underground hydrogen storage requires a thorough understanding of the geomechanics of the host rock under fluid pressure fluctuations. In this context, we summarize the current state of knowledge regarding geomechanics relevant to carbon dioxide and natural gas storage in salt caverns and depleted reservoirs. We further elaborate on how this knowledge can be applied to underground hydrogen storage. The primary focus lies on the mechanical response of rocks under cyclic hydrogen injection and production, fault reactivation, the impact of hydrogen on rock properties, and other associated risks and challenges. In addition, we discuss wellbore integrity from the perspective of underground hydrogen storage. The paper provides insights into the history of energy storage, laboratory scale experiments, and analytical and simulation studies at the field scale. We also emphasize the current knowledge gaps and the necessity to enhance our understanding of the geomechanical aspects of hydrogen storage. This involves developing predictive models coupled with laboratory scale and field-scale testing, along with benchmarking methodologies.

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“…Unconventional reservoirs are a critical resource in this era of energy transition and sustainability due to their important contributions to energy production and geo-storage. Currently, there is an increased focus on CO2-enhanced oil recovery (CO 2 -EOR) (Welkenhuyse et al 2018;Wei et al 2021;Kashkooli et al 2022) and geological CO 2 storage (GCS) (Eshkalak and Aybar 2015;Senger et al 2015;Levine et al 2016;Azenkeng et al 2020;Kolawole et al 2021aKolawole et al , 2022Ozotta et al 2021a, b, c) in unconventional hydrocarbon reservoirs, and the extraction of hot fluid for energy through enhanced geothermal systems (Gholizadeh Doonechaly et al 2013;McClure and Horne 2014;Kolawole et al 2021b). These energy solutions can only be achieved through efficient stimulation to develop a complex fracture network and pore structure in the host rocks to extract heat and hydrocarbon, or for CO 2 storage.…”

Section: Introductionmentioning

confidence: 99%

Pore morphology effect on elastic and fluid flow properties in Bakken formation using rock physics modeling

Ozotta

Saberi²,

Kolawole

et al. 2022

Geomech. Geophys. Geo-energ. Geo-resour.

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Unconventional geo-resources are critical due to their important contributions to energy production. In this energy transition and sustainability era, there is an increased focus on CO2-enhanced oil recovery (CO2-EOR) and geological CO2 storage (GCS) in unconventional hydrocarbon reservoirs, and the extraction of hot fluid for energy through enhanced geothermal systems. However, these energy solutions can only be achieved through efficient stimulation to develop a complex fracture network and pore structure in the host rocks to extract heat and hydrocarbon, or for CO2 storage. Using Bakken formation well data and rock physics models, this study aimed to identify the post-depositional effect of pore structure on seismic velocity, elastic moduli, and formation fluid; and further predict the best lithofacies interval for well landing, and the implications for fluid (gas, oil, and water) recovery in naturally- and often systematically-fractured geosystems. The KT and DEM models' predictions show distinct formation intervals exhibiting needle-like pores and having higher seismic velocities (Vp and Vs) and elastic moduli (K and µ), relative to other formation intervals that exhibit moldic pores. At the same fluid concentration, the needle-like pores (small aspect ratios) have a higher impact on elastic moduli, Vp, and Vs than on the moldic spherical pores with all other parameters held constant. Vp is affected more than Vs by the properties of the saturating fluid (gas, oil, or water) with Vp being greater in Bakken formation when it is water-saturated than when it is gas-saturated. Vs exhibit the reverse behavior, with Vs greater in the gas-saturated case than in the water-saturated case. Further, analyses suggest that the middle Bakken formation will have a higher susceptibility to fracturing and faulting, and hence will achieve greater fluid (oil and water) recovery. Our findings in this study provide insights that are relevant for fluid production and geo-storage in unconventional reservoirs. Article highlights Integrated well log data and rock physics models. Investigated the effect of changes in pore structure on elastic properties and fluid flow in shale. Increase in porosity causes a reduction in elastic moduli and seismic velocities. Vp is more affected by pore geometry than Vs depending on density and properties of saturating fluid. Lithofacies with needle−like pores are more susceptible to fracturing than lithofacies with intragranular pores.

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Impact of microbial-rock-CO2 interactions on containment and storage security of supercritical CO2 in carbonates

Cited by 19 publications

References 71 publications

CO₂‐Induced alterations due to thermal maturation in shale: Implications for CO₂ utilization and storage

CO₂‐Induced alterations due to thermal maturation in shale: Implications for CO₂ utilization and storage

Comprehensive review of geomechanics of underground hydrogen storage in depleted reservoirs and salt caverns

Pore morphology effect on elastic and fluid flow properties in Bakken formation using rock physics modeling

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Impact of microbial-rock-CO2 interactions on containment and storage security of supercritical CO2 in carbonates

Cited by 19 publications

References 71 publications

CO2‐Induced alterations due to thermal maturation in shale: Implications for CO2 utilization and storage

CO2‐Induced alterations due to thermal maturation in shale: Implications for CO2 utilization and storage

Comprehensive review of geomechanics of underground hydrogen storage in depleted reservoirs and salt caverns

Pore morphology effect on elastic and fluid flow properties in Bakken formation using rock physics modeling

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CO₂‐Induced alterations due to thermal maturation in shale: Implications for CO₂ utilization and storage

CO₂‐Induced alterations due to thermal maturation in shale: Implications for CO₂ utilization and storage