Impact of Kerogen Geochemistry and Reservoir Temperature on Contact Angle and Wettability of Kerogen

Jagadisan, Archana; Heidari, Zoya

doi:10.30632/spwla-5043

Cited by 4 publications

(3 citation statements)

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“…The increased adsorption of water at low thermal maturity could significantly depend upon water-wet kerogen. 67 Recently, Jagadisan and Heidari 40 prepared synthetic organic-rich mudrock samples by mixing known quantities of clay minerals, non-clay inorganic minerals, and kerogen. They observed that the water adsorption capacity of heat-treated kerogen samples decreased with increasing thermal maturity.…”

Section: Effect Of Thermal Maturity Of Organic Mattermentioning

confidence: 99%

“…Jagadisan and Heidari also found that the volume of water adsorbed in samples at higher thermal maturity decreases by 16% compared to organic-rich mudrocks at low thermal maturity at the same concentration of non-swelling clay minerals. The increased adsorption of water at low thermal maturity could significantly depend upon water-wet kerogen …”

Section: Effect Of Thermal Maturity Of Organic Mattermentioning

confidence: 99%

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Complexities Driving Wettability Evaluation of Shales toward Unconventional Approaches: A Comprehensive Review

et al. 2021

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Wettability is a challenging property of oil and gas shale reservoirs, which are geologically and geochemically intricate formations. Furthermore, the mineral composition, organic matter content, generated pore types, pressure, temperature, and saturation conditions significantly affect the observed wetting affinity. Hence, a deep understanding of the complexities facing the researchers is needed. This review analyzes the most relevant published research on the wettability evaluation of shales for a better understanding and delineation. Here, the effects of shale composition, organic matter content, maturity, pore types, and reservoir conditions are addressed. It also focuses on the unconventional and emerging approaches to the wettability evaluation of shales. At last, future perspectives, concluding remarks, and recommendations are presented.

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Section: Effect Of Thermal Maturity Of Organic Mattermentioning

confidence: 99%

Section: Effect Of Thermal Maturity Of Organic Mattermentioning

confidence: 99%

Complexities Driving Wettability Evaluation of Shales toward Unconventional Approaches: A Comprehensive Review

et al. 2021

View full text Add to dashboard Cite

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“…In some recent studies, Jagadisan and Heidari − observed that thermal maturation induces variations in the kerogen’s chemical structure and modifies its oxygen and hydrogen content, which affects its wettability. Although the maturities of outcrop and subsurface shales are different, the variations in the measured wettabilities of outcrop and equivalent subsurface samples might be unexpected.…”

Section: Comparison Based On Geochemical Characteristicsmentioning

confidence: 99%

Use of Outcrop as Substitute for Subsurface Shale: Current Understanding of Similarities, Discrepancies, and Associated Challenges

et al. 2021

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Full coring in shale reservoirs is challenging, time consuming, and risky due to fragility. Therefore, shale outcrop analogs are often used as an alternative to enhance the understanding of corresponding subsurface reservoir formation multifaceted mineralogy and rock characteristics. As consequence, many researchers perform their fundamental experimental studies on the core samples collected from outcrops when the subsurface unconventional shale samples are scarce. An assumption is often made that the rock composition and properties of outcrop and subsurface samples remain the same which raises some serious concerns and demands a thorough review of published research to check the validity of this approach to characterize shale reservoirs. The high degree of lateral and vertical heterogeneity and anisotropy, weathering, contamination, and postdepositional tectonic activities further add to the major challenges. In this literature-based study, the authors revisit the current understanding and challenges of using shale outcrops to complement the available subsurface samples and use them for the preliminary evaluation of underexploration and undeveloped unconventional shale reservoirs. The similarities and discrepancies of mineralogical, petrophysical, geochemical, and geomechanical properties are discussed. Finally, some concluding remarks and recommendations are presented.

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Emerging advances in CO₂ storativity and trappability within shale reservoirs

Hameli,

Belhaj,

AlDhuhoori

et al. 2024

Energy Science & Engineering

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Geological carbon storage and utilization is widely regarded as the most realistic method of reducing carbon emissions throughout the energy transition era. In recent times, the implementation of carbon dioxide (CO2) injection has emerged as a potential method for increasing the recovery of hydrocarbon and facilitating the interaction of CO2 in shale reservoirs. This methodology enables the mitigation of total carbon emissions released into the earth's atmosphere. The concept of using CO2 geological sequestration in unconventional shale formations seems to be a prudent approach in responding to both the growing energy demand and mandating environmental requirements simultaneously. Shale reservoirs have received significant interest in the global context because to their substantial reserves and widespread distribution. This research offers a comprehensive analysis of the essential components involved in the sequestration of CO2 in shales, therefore improving the trapping and long‐term storage of CO2. In addition, it explores the extraction of hydrocarbons in this context. Gaining a comprehensive understanding of the fundamental factors that contribute to the storativity and trappability of CO2 is crucial for improving the displacement of methane gas (CH4) during shale gas recovery. This is particularly relevant in depleted the reservoirs of shale gas, where the aim is to enhance the effectiveness of in situ CO2 sequestration while reducing the leakage risk.

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Impact of Kerogen Geochemistry and Reservoir Temperature on Contact Angle and Wettability of Kerogen

Cited by 4 publications

References 0 publications

Complexities Driving Wettability Evaluation of Shales toward Unconventional Approaches: A Comprehensive Review

Complexities Driving Wettability Evaluation of Shales toward Unconventional Approaches: A Comprehensive Review

Use of Outcrop as Substitute for Subsurface Shale: Current Understanding of Similarities, Discrepancies, and Associated Challenges

Emerging advances in CO₂ storativity and trappability within shale reservoirs

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Impact of Kerogen Geochemistry and Reservoir Temperature on Contact Angle and Wettability of Kerogen

Cited by 4 publications

References 0 publications

Complexities Driving Wettability Evaluation of Shales toward Unconventional Approaches: A Comprehensive Review

Complexities Driving Wettability Evaluation of Shales toward Unconventional Approaches: A Comprehensive Review

Use of Outcrop as Substitute for Subsurface Shale: Current Understanding of Similarities, Discrepancies, and Associated Challenges

Emerging advances in CO2 storativity and trappability within shale reservoirs

Contact Info

Product

Resources

About

Emerging advances in CO₂ storativity and trappability within shale reservoirs