Weyburn oilfield core assessment investigating cores from pre and post CO2 injection: Determining the impact of CO2 on the reservoir

Jensen, Gavin

doi:10.1016/j.ijggc.2016.09.003

Cited by 8 publications

(3 citation statements)

References 9 publications

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“…In this project, not only is a considerable amount of additional oil recovered [88], but also the life cycle of the oilfield is extended for 20-25 years [89]. CO2-EOR studies based on the Weyburn case history have been mainly focused on long-term monitoring [90,91], induced seismicity [92], core assessment of CO2 impact on the reservoir [93], and interaction of formation waters, oil and minerals [94]. Cantucci et al [51] developed a geochemical model for CO2 storage in deep reservoirs using the Weyburn case history, and studied brine/oil geochemical equilibrium.…”

Section: Depleted Oil and Gas Reservoirsmentioning

confidence: 99%

A review of developments in carbon dioxide storage

et al. 2017

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Carbon capture and storage (CCS) has been identified as an urgent, strategic and essential approach to reduce anthropogenic CO2 emissions, and mitigate the severe consequences of climate change. CO2 storage is the last step in the CCS chain and can be implemented mainly through oceanic and underground geological sequestration, and mineral carbonation. This review paper aims to provide state-of-the-art developments in CO2 storage. The review initially discussed the potential options for CO2 storage by highlighting the present status, current challenges and uncertainties associated with further deployment of established approaches (such as storage in saline aquifers and depleted oil and gas reservoirs) and feasibility demonstration of relatively newer storage concepts (such as hydrate storage and CO2-based enhanced geothermal systems). The second part of the review outlined the critical criteria that are necessary for storage site selection, including geological, geothermal, geohazards, hydrodynamic, basin maturity, and economic, societal and environmental factors. In the third section, the focus was on identification of CO2 behaviour within the reservoir during and after injection, namely injection-induced seismicity, potential leakage pathways, and long-term containment complexities associated with CO2-brine-rock interaction. In addition, a detailed review on storage capacity estimation methods based on different geological media and trapping mechanisms was provided. Finally, an overview of major CO2 storage projects, including their overall outcomes, were outlined. This review indicates that although CO2 storage is a technically proven strategy, the discussed challenges need to be addressed in order to accelerate the deployment of the technology. In addition, beside the necessity of technoeconomic aspects, public acceptance of CO2 storage plays a central role in technology deployment, and the current ethical mechanisms need to be further improved.

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Section: Depleted Oil and Gas Reservoirsmentioning

confidence: 99%

A review of developments in carbon dioxide storage

et al. 2017

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“…Storing CO 2 in depleted oil and gas reservoirs is highly effective due to existing infrastructure and prior assessment for storage capacity. Additionally, gas injection techniques used in the oil and gas industry can be applied for CO 2 storage [38][39][40][41][42][43] .…”

Section: Underground Geological Co 2 Storagementioning

confidence: 99%

Interfacial tension and wettability alteration during hydrogen and carbon dioxide storage in depleted gas reservoirs

Dehghani,

Ghazi,

Kazemzadeh

2024

Sci Rep

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The storage of CO2 and hydrogen within depleted gas and oil reservoirs holds immense potential for mitigating greenhouse gas emissions and advancing renewable energy initiatives. However, achieving effective storage necessitates a thorough comprehension of the dynamic interplay between interfacial tension and wettability alteration under varying conditions. This comprehensive review investigates the multifaceted influence of several critical parameters on the alterations of IFT and wettability during the injection and storage of CO2 and hydrogen. Through a meticulous analysis of pressure, temperature, treatment duration, pH levels, the presence of nanoparticles, organic acids, anionic surfactants, and rock characteristics, this review elucidates the intricate mechanisms governing the changes in IFT and wettability within reservoir environments. By synthesizing recent experimental and theoretical advancements, this review aims to provide a holistic understanding of the processes underlying IFT and wettability alteration, thereby facilitating the optimization of storage efficiency and the long-term viability of depleted reservoirs as carbon capture and storage or hydrogen storage solutions. The insights gleaned from this analysis offer invaluable guidance for researchers, engineers, and policymakers engaged in harnessing the potential of depleted reservoirs for sustainable energy solutions and environmental conservation. This synthesis of knowledge serves as a foundational resource for future research endeavors aimed at enhancing the efficacy and reliability of CO2 and hydrogen storage in depleted reservoirs.

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“…The strata of interest in our study area, the Weyburn oil reservoir, can be divided into a marly layer and a vuggy layer; the former is composed of granular limestone, while the latter is finely crystalline to granular dolomite. Based on a petrological analysis and Scanning Electron Microscopy (SEM) inspection (Jensen, 2016;Njiekak et al, 2013), the Digby equation is suitable in the study area. Here, we improve upon the Digby equation to calculate the bulk modulus and shear modulus of dry rock and to estimate the P-and S-wave velocities of saturated rock under different pressures in combination with the Gassmann equation.…”

Section: Introductionmentioning

confidence: 99%

The influence of pore system change during CO₂storage on 4D seismic interpretation

2019

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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A 4D seismic forward model constitutes the foundation of 4D seismic inversion. Here, in combination with the Gassmann equation, the Digby model is improved to calculate the S-wave velocity, and the resulting equation is verified using rock testing results. Then, considering the influences of changes in the pore pressure, CO2 saturation and porosity on the P- and S- wave velocities, rock testing results from a CO2 injection area in the Weyburn field are used to calculate the P- and S-wave velocities of the reservoir. These P- and S-wave velocities are found to overlap under different pressure conditions with or without considering porosity variations. Therefore, two-layer models and well models are developed to simulate synthetic seismograms; the models considering porosity variations may provide greater seismic responses and different Amplitude Versus Offset (AVO) trends in the synthetic seismogram profiles than those without considering porosity variations. Thus, porosity variations must be considered when establishing 4D seismic forward models.

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Weyburn oilfield core assessment investigating cores from pre and post CO2 injection: Determining the impact of CO2 on the reservoir

Abstract: The purpose of this paper is to detail a mineralogical examination of core samples obtained from a recently drilled well in the Weyburn oilfield in southern Saskatchewan, Canada.

Cited by 8 publications

References 9 publications

A review of developments in carbon dioxide storage

A review of developments in carbon dioxide storage

Interfacial tension and wettability alteration during hydrogen and carbon dioxide storage in depleted gas reservoirs

The influence of pore system change during CO₂storage on 4D seismic interpretation

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Weyburn oilfield core assessment investigating cores from pre and post CO2 injection: Determining the impact of CO2 on the reservoir

Abstract: The purpose of this paper is to detail a mineralogical examination of core samples obtained from a recently drilled well in the Weyburn oilfield in southern Saskatchewan, Canada.

Cited by 8 publications

References 9 publications

A review of developments in carbon dioxide storage

A review of developments in carbon dioxide storage

Interfacial tension and wettability alteration during hydrogen and carbon dioxide storage in depleted gas reservoirs

The influence of pore system change during CO2storage on 4D seismic interpretation

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Product

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The influence of pore system change during CO₂storage on 4D seismic interpretation