Geology and Resources of Some World Oil-Shale Deposits

Dyni, J R

doi:10.3176/oil.2003.3.02

Cited by 220 publications

(29 citation statements)

References 8 publications

(11 reference statements)

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“…Oil shale can be defined as a sedimentary rock containing various amounts of solid organic materials dispersedly bound in a mineral matrix . The organic phase is usually of excellent economic and practical value, making oil shale a renewed research focus in the last several years. − In addition to obtaining shale oil and combustible gas through low-temperature retorting on the ground, − recent studies have suggested that oil shale is a fine gas source rock, , whose gas content can approach the lower limit of the Lewis shale in the San Juan Basin, United States …”

Section: Introductionmentioning

confidence: 99%

Greenhouse Gas Emissions during Oil Shale Crushing and Its Main Controlling Factors: A Contrast Study of Oil Shale in Yaojie and Fushun Areas, China

Wang,

Lu,

Chen

et al. 2024

ACS Omega

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Geological bodies are important sources of greenhouse gas (GHG) emissions. Organic-rich oil shale in sedimentary basins is a good gas source rock, the GHG in which will be released into the atmosphere during crushing to affect climate change. Quantitative calculations of GHG emissions during oil shale crushing were carried out on oil shales from the Yaojie (YJ) and Fushun (FS) mining areas in China. Organic geochemistry, X-ray diffraction, and pore structure analysis experiments, as well as the relationship between storage time and GHG emissions, were analyzed to investigate the main controlling factors of GHG release in different types of oil shales. The results showed that the CH 4 and CO 2 released from the YJ oil shale were 0.002−0.145 mL/g and 0.011−0.054 mL/g, respectively; the CH 4 and CO 2 released from the FS oil shale were 0.0001−0.0008 mL/g and 0.002−0.045 mL/g, respectively. Residual CH 4 release was closely related to total organic carbon (TOC) and maturity: the CH 4 released from the organic-rich and mature YJ oil shale was much higher than that of the FS oil shale, which is relatively organic-lean and immature. The control factors of the released CO 2 vary in different regions: CO 2 released from the YJ oil shale was somewhat affected by the TOC, while that released from the FS oil shale was mainly controlled by carbonate minerals and their contributing pores. The results of pore structure and organic maceral analyses indicated that both organic and inorganic pores of the YJ oil shale are occupied by asphaltenes, forming a key gas preservation mechanism of residual CH 4 and CO 2 as solutes dissolved in asphaltenes. In addition, CO 2 has a greater absorptive capacity than CH 4 and is therefore more difficult to release during the same crushing time. As oil shale is stored for longer periods, residual CH 4 will be preferentially released to the atmosphere, while residual CO 2 will be released in large quantities during crushing.

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Section: Introductionmentioning

confidence: 99%

Greenhouse Gas Emissions during Oil Shale Crushing and Its Main Controlling Factors: A Contrast Study of Oil Shale in Yaojie and Fushun Areas, China

Wang,

Lu,

Chen

et al. 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

Land

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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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“…Oil shale is a sedimentary rock with high ash contents and combustible organic matters. Shale oil and combustible gas can be obtained through dry distillation, and shale oil processed into a variety of refined oil [1][2][3]. China is a big energy consumer, but its conventional energy supply is still grim [4].…”

Section: Introductionmentioning

confidence: 99%

Evolution Law of Porosity and Permeability in In-Situ Pyrolysis Zone of Oil Shale

Zhang¹,

Jiang²,

Li³

et al. 2023

IJHT

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This paper tested the permeability and porosity of oil shale during the pyrolysis process. Combined with the in-situ pyrolysis simulation, this paper analyzed and discussed the evolution of permeability and porosity in the oil shale in-situ pyrolysis zone through electric heating technology. During the pyrolysis of oil shale, the porosity and permeability increased significantly when temperature ranged from 300℃ to 500℃. The scope of the in-situ pyrolysis zone expanded with the increase of heating time and pyrolysis saturation was reached essentially after six years of heating. After in-situ pyrolysis, oil shale's permeability and porosity changed greatly within 7.5 meters in the vertical direction and 4.8 meters in the horizontal direction from the central wellbore of the heating well. Oil shale in this area changed from aquifuge to aquitard.

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Geology and Resources of Some World Oil-Shale Deposits

Cited by 220 publications

References 8 publications

Greenhouse Gas Emissions during Oil Shale Crushing and Its Main Controlling Factors: A Contrast Study of Oil Shale in Yaojie and Fushun Areas, China

Greenhouse Gas Emissions during Oil Shale Crushing and Its Main Controlling Factors: A Contrast Study of Oil Shale in Yaojie and Fushun Areas, China

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

Evolution Law of Porosity and Permeability in In-Situ Pyrolysis Zone of Oil Shale

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