Insights into enhanced oil recovery by thermochemical fluid flooding for ultra-heavy reservoirs: An experimental study

Sun, Qian; Zhang, Na; Liu, Wei; Li, Binfei; Li, Songyan; Bhusal, Aabiskar; Wang, Shuhua; Li, Zhaomin

doi:10.1016/j.fuel.2022.125651

Cited by 13 publications

(4 citation statements)

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“…The wettability of kerogen can also exhibit spatial heterogeneity within a given sample, as different regions of kerogen within a reservoir may exhibit varying degrees of oil-wetness or water-wetness (Zhang et al, 2018). These findings highlight the significance of thermal maturity in influencing the wettability of kerogen, with a transition from water-wet to more oil-wet conditions as maturity increases.…”

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confidence: 89%

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Geochemical Insights: Unraveling the Influence on Kerogen and Organic-rich Mudrocks

Alaquib

2023

Preprint

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The examination of geochemical factors and their impact on kerogen and organic-rich mudrocks holds significant implications for reservoir characterization, hydrocarbon exploration, and production strategies. The understanding of the geochemical environment empowers reservoir engineers and geoscientists to gain valuable insights into the distribution, quality, and producibility of hydrocarbons trapped within these formations. This knowledge is particularly crucial in the efficient development of unconventional resources, including shale gas and tight oil, as their successful exploitation heavily relies on comprehending the behavior and properties of kerogen and organic-rich mudrocks.Therefore, geochemistry assumes a critical role in unraveling the properties and behavior of kerogen and organic-rich mudrocks, which are fundamental to petroleum geology and hydrocarbon exploration. This comprehensive review delves into the wide-ranging influence of geochemistry on various facets of kerogen and organic-rich mudrocks. Specifically, it investigates the interplay between geochemical factors and their effects on the physical properties of kerogen, wettability characteristics, adsorption properties, wettability of organic-rich mudrocks, and dynamic properties within kerogen pores. By examining the intricate relationship between geochemical processes and these organic-rich materials, this review sheds light on their behavior and potential applications within the energy industry.

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confidence: 89%

“…The wettability of organic shales plays a crucial role in determining the efficiency of hydrocarbon extraction from these unconventional reservoirs (Sun et al, 2018). Wettability refers to the affinity of a solid surface for a particular fluid, typically oil, water, or gas.…”

Section: Wettability Of Kerogen and Organic Shalesmentioning

confidence: 99%

Geochemical Insights: Unraveling the Influence on Kerogen and Organic-rich Mudrocks

Alaquib

2023

Preprint

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“…a large amount of heat and nitrogen gas were released, which effectively cleaned the fractures. Sun et al 54 utilizing thermochemical fluids to reduce ultraheavy oil viscosity for enhancing its production.…”

Section: Introductionmentioning

confidence: 99%

Mitigating Liquid Loading in Gas Wells Using Thermochemical Fluid Injection: An Experimental and Simulation Study

Elyasa,

Hassan,

Mahmoud

et al. 2024

ACS Omega

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Liquid loading significantly hinders gas production in unconventional shale wells, restricting flow and causing productivity decline. This study presents a novel approach to address this challenge, utilizing thermochemical fluids to generate in situ pressure and heat and effectively mitigating liquid loading issues. Laboratory experiments were conducted using a specially designed flow loop system to evaluate the performance of thermochemical fluids in alleviating liquid loading. The key treatment parameters such as thermochemical volumes, injection rate, number of cycles, and optimum injection time were optimized to improve the removal efficiency. In addition, PIPESIM software (pipe simulation program) was used to validate the effectiveness of the thermochemical approach for removing the liquid loading issue. Both laboratory results and PIPESIM outcomes confirmed the efficiency of thermochemical fluids in handling liquid loading. Removal efficiency of more than 90% can be achieved using thermochemical injection. The liquid removal efficiency increases with the number of cycles due to the generation of more pressure and heat at later injection cycles. Increasing injection cycles from 1 to 3 resulted in liquid removal efficiency rising from 17 to 95%. Also, PIPESIM results indicated that the gas production rate can be improved by around 74% after applying thermochemical treatment. Overall, this study introduces an effective treatment for liquid loading mitigation with significant potential to enhance gas production. The proposed method offers several advantages, including ease of application and extended well life.

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“… Heterogeneity in wettability: The wettability of kerogen can exhibit spatial heterogeneity within a given sample due to variations in thermal maturity levels. Different regions of kerogen within a reservoir may exhibit varying degrees of oil-wetness or water-wetness(Zhang et al, 2018).…”

mentioning

confidence: 99%

Insights into the Influence of Geochemistry on Kerogen and Organic-rich Mudrocks

alaqib

2023

Preprint

View full text Add to dashboard Cite

The investigation of geochemical factors and their influence on kerogen and organic-rich mudrocks has profound implications for reservoir characterization, hydrocarbon exploration, and production strategies. Understanding the geochemical environment allows reservoir engineers and geoscientists to gain insights into the distribution, quality, and producibility of trapped hydrocarbons within these formations. This knowledge is particularly critical for effectively developing unconventional resources, such as shale gas and tight oil, as their exploitation relies heavily on the behavior and properties of kerogen and organic-rich mudrocks. Hence, geochemistry plays a pivotal role in comprehending the properties and behavior of kerogen and organic-rich mudrocks, which are essential in petroleum geology and hydrocarbon exploration. This comprehensive review paper delves into the extensive impact of geochemistry on various aspects of kerogen and organic-rich mudrocks. Specifically, it examines how geochemical factors influence the physical properties of kerogen, the characteristics of wettability, the adsorption properties, the wettability of organic-rich mudrocks, and the dynamic properties within kerogen pores. By analyzing the intricate interplay between geochemical processes and these organic-rich materials, this review sheds light on their behavior and potential applications in the energy industry.

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Insights into enhanced oil recovery by thermochemical fluid flooding for ultra-heavy reservoirs: An experimental study

Cited by 13 publications

References 40 publications

Geochemical Insights: Unraveling the Influence on Kerogen and Organic-rich Mudrocks

Geochemical Insights: Unraveling the Influence on Kerogen and Organic-rich Mudrocks

Mitigating Liquid Loading in Gas Wells Using Thermochemical Fluid Injection: An Experimental and Simulation Study

Insights into the Influence of Geochemistry on Kerogen and Organic-rich Mudrocks

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