Progress in Exploration, Development and Utilization of Oil Shale in China

Xu, Yinbo; Sun, Pingchang; Yao, Su Ping; Liu, Z; Tian, Xuemei; Li, F; Zhang, J

doi:10.3176/oil.2019.2.03

Cited by 18 publications

(6 citation statements)

References 22 publications

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“…1 Oil shale deposits in China are primarily found in Jilin, Liaoning, and Guangdong provinces, with Jilin being the wealthiest. 2 Oil shale deposits are typically found at shallow depths and have low reservoir temperatures, making them relatively easy to exploit compared to conventional oil and gas reserves. However, the hydrocarbon-bearing porous media in oil shale contain solid, nonflowing kerogen that must be cracked into smaller, flowable hydrocarbon molecules through heating.…”

Section: Introductionmentioning

confidence: 99%

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Oil Shale In Situ Production Using a Novel Flow-Heat Coupling Approach

Jia,

Huang

2024

ACS Omega

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Oil shale development, a significant global energy concern, involves the pyrolysis of kerogen, a process that can heat and contaminate groundwater with pyrolysis products. To address these challenges, this study introduces the ambienttemperature gas in situ heating (ATGIH) method as an alternative to traditional techniques. The ATGIH method establishes a low-temperature gas barrier to prevent water infiltration into the production zone by placing heating holes between the injection and production wells. The effectiveness of the ATGIH method in mitigating groundwater contamination during oil shale development is demonstrated through thermochemically coupled reservoir simulations. The study further discusses how gas injection enhances the flowability of mobile oil and gas phases into production wells and how controlling the Dykstra−Parsons coefficient, a measure of heterogeneity, can mitigate gravity segregation and aggregate viscous fingering issues. Our results show that well spacing is a critical factor in designing oil shale development, with a larger spacing resulting in higher energy efficiency but lower oil recovery rates. Furthermore, the study reveals that porosity decreases while permeability increases during pyrolysis due to thermal cracking and pore structure changes. It also highlights that heterogeneityinduced issues can be alleviated by increasing the correlation length to make the system more homogeneous. Therefore, the ATGIH method represents a key innovation in oil shale development, offering a solution that mitigates groundwater contamination while improving the energy efficiency.

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Section: Introductionmentioning

confidence: 99%

“…Oil shale deposits in China are primarily found in Jilin, Liaoning, and Guangdong provinces, with Jilin being the wealthiest . Oil shale deposits are typically found at shallow depths and have low reservoir temperatures, making them relatively easy to exploit compared to conventional oil and gas reserves.…”

Section: Introductionmentioning

confidence: 99%

Oil Shale In Situ Production Using a Novel Flow-Heat Coupling Approach

Jia,

Huang

2024

ACS Omega

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“…Defined as a high-ash solid combustible organic rock, oil shale is typically a finegrained sedimentary rock (usually shale) with a high kerogen content that is sufficient for fractionating a significant amount of oil [1][2][3]. It has more than 40% ash content and 3.5% oil content and is regarded as a typical unconventional oil and gas resource.…”

Section: Introductionmentioning

confidence: 99%

Ecological Restoration and Transformation of Maoming Oil Shale Mining Area: Experience and Inspirations

Zhao

Zhang

Xie

et al. 2023

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Oil shale is a kind of unconventional energy resource with abundant reserves, but its exploitation has a continuous negative impact on the environment, which has hindered the research and exploitation of oil shale under the international environmental consensus on issues such as climate change. Therefore, more attention should be paid to environmental problems as the side effect of oil shale exploitation. With the combination of field research, literature collection, and tracking survey, the oil shale open-pit exploitation and management process in Maoming, Guangdong, China, has been investigated, and its development and transformation model has been subsequently refined and summarized. The research results show that Maoming oil shale open-pit mine area has gone through four main stages: pre-exploitation stage, large-scale utilization stage, restoration stage, and green development stage. Through the management of mine pit treatment, vegetation restoration, ecological park construction, and tourism resource development, the abandoned open-pit mine has been transformed into an ecological park combining ecosystem, tourism, and cultural resources. In this process, this area has achieved the transformation from rough resource extraction to environment-friendly sustainable growth in its development mode. As a successful case of open-pit mine management in the world, the ecological restoration experience in Maoming can function as a reference for the smooth development and transformation of other oil shale mines in developing countries.

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“…Besides, it is also the raw material for construction, and cement and chemical fertilizers production. Currently, the research on oil shale mainly focuses on its comprehensive utilization and geological exploration [8][9][10][11][12]. Despite its abundant reserves and versatility of applications, oil shale exploration and utilization face a number of challenges, including high costs and environmental pollution.…”

Section: Introductionmentioning

confidence: 99%

A bibliometric comparative study on global oil shale research: hotspots, trends and regional focus

Zhao¹,

Zhang²,

Ren³

et al. 2023

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The world energy mix has been confronted with significant challenges since the international circumstances became increasingly complicated. Oil shale is a typical alternative resource to traditional oil, therefore, it is of great significance to re-evaluate its exploitation and utilization status and research trend under the new background. Through the bibliometric analysis of 944 articles on oil shale published between 2012 and 2022 collected from the Web of Science (WoS) database, this research has carried out a review on the global publication and research trend in oil shale relevant studies. It then investigated and compared the research characteristics in three major countries that carry out oil shale related research, to identify the opportunities of oil shale development in different nations under the restriction of diversified factors. The results show that during the last ten years, research on oil shale has experienced a continuous growth in publication quantity and greatly contributed to the oil shale development with the production of highest cited studies. As for the regional characteristics, Estonia focuses on the comprehensive utilization of oil shale and stands out in its engagement in the environment protection, while China and the United States are still accumulating the applied technological research and fundamental science knowledge and conservatively develop the utilization of oil shale. Although different regions have developed different

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Progress in Exploration, Development and Utilization of Oil Shale in China

Cited by 18 publications

References 22 publications

Oil Shale In Situ Production Using a Novel Flow-Heat Coupling Approach

Oil Shale In Situ Production Using a Novel Flow-Heat Coupling Approach

Ecological Restoration and Transformation of Maoming Oil Shale Mining Area: Experience and Inspirations

A bibliometric comparative study on global oil shale research: hotspots, trends and regional focus

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