Evaluation of facies heterogeneity in reef carbonate reservoirs: A case study from the oil field, Perm Krai, Central-Eastern Russia

Martyushev, Dmitriy A.; Chalova, Polina O.; Davoodi, Shadfar; Ashraf, Umar

doi:10.1016/j.geoen.2023.211814

Cited by 25 publications

(13 citation statements)

References 66 publications

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“…As reported, the adsorption methane density could reach 2–7 times the bulk density, and the magnitude continues to rise by intensifying molecule–surface interactions. ,,, Hence, from theoretical perspective, ultra-tight formations possess the advantage over traditional geological sites on storing more CO 2 due to the presence of the adsorption phase. Currently, related research on CO 2 sequestration in ultra-tight formations is heat; however, microscopic characterization on CO 2 behavior inside nanopores, ,,− like quantified description of adsorption phase density and thickness as well as the magnitude on CO 2 storage quantity the nanopores could improve over macropores, remains a challenging knowledge gap. ,,− Effective evaluation on CO 2 sequestration in ultra-tight formations cannot be accomplished favorably until figuring out the nanoconfined CO 2 behavior and its comprehensive relevant sensitivity analysis.…”

Section: Introductionmentioning

confidence: 99%

CO₂ Storage Behavior in Nanopores: Implications for CO₂ Sequestration in Ultra-Tight Geological Formations

Huang

Lü

et al. 2023

Ind. Eng. Chem. Res.

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The fatal challenge that human beings are currently facing is global warming as a result of excessive CO 2 emission in the atmosphere. CO 2 sequestration, gaseous CO 2 injection into ultra-tight geological sites, is regarded as a promising approach to achieve CO 2 reduction substantially. In this work, emphasis is paid to CO 2 storage potential inside depleted shale or coal seam where the presence of nanopores is rich, and CO 2 molecules store in both bulk and adsorption states in nanopores. The microscopic characterization on CO 2 behavior in the nanospace, particularly quantitative description on the difference between CO 2 in the adsorption and bulk states, is still lacking. With the intention to shed light on nanoconfined CO 2 behavior, a simple yet robust theoretical work rooting in the chemical potential equilibrium of each CO 2 molecule in the entire system is implemented, and the shift of critical properties due to the nanoconfinement effect is coupled. Then, the CO 2 density can be described as a function of distance away from the nanopore wall; the CO 2 molecule is found to accumulate more densely while approaching the nanopore wall, suggesting an adsorption behavior from microscopic perspective. Results show that (a) the CO 2 adsorption-phase thickness is insensitive to nanopore size, ranging from 0.58 to 0.64 nm, and the ratio of adsorption density over bulk density could reach 1−2 orders of magnitude; (b) the CO 2 amount the 2 nm nanopore is able to store could reach over 7.2 times that in macropores, displaying the unique advantage of shale and coal formations on CO 2 sequestration over conventional oil/gas reservoirs; (c) increasing pressure can improve the total CO 2 geological sequestration performance, and the improvement of magnitude at the lowpressure range could be as great as 2.9 times that at a high-pressure range. This work provides a doable framework to investigate the CO 2 existence behavior in nanopores, enriching the theoretical basis to identify favorable geological sites for CO 2 sequestration.

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Section: Introductionmentioning

confidence: 99%

CO₂ Storage Behavior in Nanopores: Implications for CO₂ Sequestration in Ultra-Tight Geological Formations

Huang

Lü

et al. 2023

Ind. Eng. Chem. Res.

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“…Few cracks were observed on the sample surface; however, no void-filling materials (which are normally organic contents) were observed on the sample surface (Figure C). Generally, carbonate rocks contain layered, stromatolitic interlayers, with short stylolite seams formed by a black substance . The porosity of this sample is around 20% and is identified as intergranular porosity between the grain matrix on the sample surface.…”

Section: Resultsmentioning

confidence: 99%

“…Generally, carbonate rocks contain layered, stromatolitic interlayers, with short stylolite seams formed by a black substance. 50 The porosity of this sample is around 20% and is identified as intergranular porosity between the grain matrix on the sample surface. This high porosity indicates a highly effective gas-bearing lithotype compared to other rocks such as sandstone, 51 due to the presence of only one mineral.…”

Section: Observations From Sem Analysismentioning

confidence: 92%

Subsurface Hydrogen Storage in Limestone Rocks: Evaluation of Geochemical Reactions and Gas Generation Potential

Al-Yaseri,

Fatah,

Alsaif

et al. 2024

Energy Fuels

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Underground hydrogen storage (UHS) in carbonate reservoirs is a suitable solution for safe storage and efficient hydrogen recovery during the cycling process. The uncertainties associated with potential geochemical reactions between hydrogen, rock, and brine may impact the long-term containment of produced hydrogen in carbonate formations. Despite the current interest in studying hydrogen-rock reactions, only limited work is available in the literature. In this study, we experimentally evaluate the reactivity of carbonate rocks to hydrogen and address the potential of gas generation induced by geochemical reactions. Limestone samples are treated with hydrogen under 1500 psi and 75 °C temperature for a duration between 6 and 13 months using simple reaction cells. Scanning electron microscopy (SEM) analysis is performed to examine the potential dissolution/precipitation reactions induced by hydrogen. In contrast, gas chromatography (GC analyzer) analysis and inductively coupled plasma optical emission spectroscopy (ICP-OES) are conducted to detect gas generation and ion precipitation. The experimental results indicate no significant impact of hydrogen treatment on surface morphology and pore structure even after 6 months of treatment, suggesting that abiotic reactions in carbonate rocks are unlikely to occur during the first stages of UHS. Furthermore, in the presence of brine, there are no apparent indications of geochemical reactions occurring between hydrogen and calcite, and no traces of any other gases are detected after 13 months of treatment. Besides, the solutions’ pH remains almost unchanged, with a minor increase in calcium (Ca2+) ions in the solution, which is attributed to the presence of water, not hydrogen reactions. The results of this work promisingly support the utilization of carbonate reservoirs for long-term hydrogen storage.

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“…To our current knowledge, little research has been devoted to investigating nanoconfined CO 2 behavior under varying surface-molecule interaction strengths. Specific nanopore surface material, such as carbon sheets, clay, and kerogen molecules recently, is utilized to examine CO 2 adsorption or competitive adsorption over original methane and water. ,,− Li et al (2020) found rich nanopores in tight reservoirs could be filled with water, and then how much CO 2 could solubilize into injected water is a critical issue . With the purpose of exploring it, the impact of salinity and pH on nanoconfined CO 2 solubility was investigated.…”

Section: Introductionmentioning

confidence: 99%

Surface-Molecule Interaction Strength on CO₂ Adsorption Capacity in Nanopores: Implications to Advance CO₂ Sequestration Performance

Sun,

Wu,

Huang

et al. 2023

Ind. Eng. Chem. Res.

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Evaluation of facies heterogeneity in reef carbonate reservoirs: A case study from the oil field, Perm Krai, Central-Eastern Russia

Cited by 25 publications

References 66 publications

CO₂ Storage Behavior in Nanopores: Implications for CO₂ Sequestration in Ultra-Tight Geological Formations

CO₂ Storage Behavior in Nanopores: Implications for CO₂ Sequestration in Ultra-Tight Geological Formations

Subsurface Hydrogen Storage in Limestone Rocks: Evaluation of Geochemical Reactions and Gas Generation Potential

Surface-Molecule Interaction Strength on CO₂ Adsorption Capacity in Nanopores: Implications to Advance CO₂ Sequestration Performance

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Evaluation of facies heterogeneity in reef carbonate reservoirs: A case study from the oil field, Perm Krai, Central-Eastern Russia

Cited by 25 publications

References 66 publications

CO2 Storage Behavior in Nanopores: Implications for CO2 Sequestration in Ultra-Tight Geological Formations

CO2 Storage Behavior in Nanopores: Implications for CO2 Sequestration in Ultra-Tight Geological Formations

Subsurface Hydrogen Storage in Limestone Rocks: Evaluation of Geochemical Reactions and Gas Generation Potential

Surface-Molecule Interaction Strength on CO2 Adsorption Capacity in Nanopores: Implications to Advance CO2 Sequestration Performance

Contact Info

Product

Resources

About

CO₂ Storage Behavior in Nanopores: Implications for CO₂ Sequestration in Ultra-Tight Geological Formations

CO₂ Storage Behavior in Nanopores: Implications for CO₂ Sequestration in Ultra-Tight Geological Formations

Surface-Molecule Interaction Strength on CO₂ Adsorption Capacity in Nanopores: Implications to Advance CO₂ Sequestration Performance