Ore-controlling structures of sandstone-hosted uranium deposit in the southwestern Ordos Basin: Revealed from seismic and gravity data

Zhang, Pingchuan; Yu, Changqing; Zeng, Xiaoyu; Tan, Shunjia; Chen, Lu

doi:10.1016/j.oregeorev.2021.104590

Cited by 13 publications

(3 citation statements)

References 36 publications

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“…In contrast to Figure 3 b, large-scale faults may disconnect the deeper Proterozoic strata [ 36 ] and local small faults control the LFm thickness variation. The banded distribution is seen in two dominant directions, the first one is W-E and the second one NE-SW [ 37 ], which is consistent with the base faces of fluvial meandering channels [ 38 ], but differs from the S-N and WN-ES directions of faults strike that were ascertained near the injection well by 3D seismic exploration from the CCUS project field.…”

Section: Resultsmentioning

confidence: 72%

Deep Groundwater Flow Patterns Induced by Mine Water Injection Activity

Chen

Rudakov

et al. 2022

IJERPH

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Mine water injection into deep formations is one of the effective approaches for reducing the drainage from coal mines in the arid and semi-arid region of the Ordos basin, China. Many coal mines are attempting to execute the related projects. Under the influence of groundwater protection, the understanding of regional groundwater flow is becoming highly important to the mine water monitoring, whereas quite few academic research teams focus on the deep groundwater flow pattern by mine water injection. This paper reveals the spatial distribution of Liujiagou Formation that is in positive correlation with the terrain, and its local thickness is influenced by the dominant W-E and NE-SW directions of geological structures. Only a part of sandstone rocks consists of aquifers, the rest 61.9% of relatively dry rock provide the enhanced storage space and partial mudstone aquicludes decrease the possibility of the vertical leakage for mine water. The dynamic storage capacity is evaluated at 2.36 Mm3 per 1 km2 and over 25.10 billion m3 in this study area. Two hydrogeologic cross-sections of basin-scale identify the W-E and N-S regional groundwater flow directions, with the lower Yellow River catchment becoming the discharged region. The hierarchically and steadily nested flow systems containing coal mining claims are influenced by coal mining activity. The groundwater depression cone in a shallow coal measure aquifer is caused by mine water drainage whereas the groundwater mound in Liujiagou Formation is generated by mine water injection activity. The numerical simulation revealed that the groundwater head rebound is slightly decreased and will not recover to its initial baseline within 500 years due to its low porosity and permeability. This study elucidates the deep groundwater flow patterns induced by mine water injection and provides a practical methodology for the management and pollution monitoring of mine water injection activity.

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Section: Resultsmentioning

confidence: 72%

Deep Groundwater Flow Patterns Induced by Mine Water Injection Activity

Chen

Rudakov

et al. 2022

IJERPH

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“…Recent research has focused on advanced seismic attribute analysis methods, including machine learning-based approaches, attribute fusion techniques for improved reservoir characterization, and integrating seismic attributes with other geophysical data . Additionally, studies have explored the application of seismic attributes in unconventional resource plays and the assessment of seismic attribute uncertainty, , further enhancing their usefulness in geoscience and reservoir engineering.…”

Section: Introductionmentioning

confidence: 99%

Accentuating the Reservoir Potentials of Balkassar Field by Delineating the Fracture Trends and Hydrocarbon Prospects with the Aid of Seismic Attributes

Waqas,

Shazia,

Muyyassar

2024

ACS Omega

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“…The presence of sandstone-type uranium deposits alongside oil and gas resources frequently occurs in China's basins [26][27][28][29], indicating a close relationship and coexistence between these resources. This can be attributed to the fact that sandstone, particularly high-porosity and permeability sandstone, functions as a storage space for oil and gas, as well as channels and storage sites for the transportation and enrichment of fluids carrying uranium [30][31][32]. In addition, the geological structures and sedimentary environments required by hydrocarbon generation and uranium mineralization share certain similarities [33].…”

Section: Introductionmentioning

confidence: 99%

A Review of the Metallogenic Mechanisms of Sandstone-Type Uranium Deposits in Hydrocarbon-Bearing Basins in China

Yao

Song

et al. 2023

Eng

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As a valuable mineral resource, uranium is extensively utilized in nuclear power generation, radiation therapy, isotope labeling, and tracing. In order to achieve energy structure diversification, reduce dependence on traditional fossil fuels, and promote the sustainable development of energy production and consumption, research on the metallogenic mechanisms and related development technologies of uranium resources has been one of the focuses of China’s energy development. Sandstone-type uranium deposits make up approximately 43% of all deposits in China, making them the most prevalent form of uranium deposit there. Sandstone-type uranium deposits and hydrocarbon resources frequently coexist in the same basin in China. Therefore, this study summarizes the spatial and chronological distribution, as well as the geological characteristics, of typical sandstone-type uranium deposits in China’s hydrocarbon-bearing basins. From the perspectives of fluid action, geological structure, and sedimentary environment, the metallogenic mechanisms of sandstone-type uranium deposits in hydrocarbon-bearing basins are explored. According to the research, the rapid reduction effect of oil and gas in the same basin is a major factor in the generation of relatively large uranium deposits. Additionally, ions such as CO32− and HCO3− in hydrothermal fluids of hydrocarbon-bearing basins, which typically originate from dispersed oil and gas, are more conducive to uranium enrichment and sedimentation. This study provides guidance for efficient sandstone-type uranium deposit exploration and production in hydrocarbon-bearing basins and helps to achieve significant improvements in uranium resource exploitation efficiency.

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Ore-controlling structures of sandstone-hosted uranium deposit in the southwestern Ordos Basin: Revealed from seismic and gravity data

Cited by 13 publications

References 36 publications

Deep Groundwater Flow Patterns Induced by Mine Water Injection Activity

Deep Groundwater Flow Patterns Induced by Mine Water Injection Activity

Accentuating the Reservoir Potentials of Balkassar Field by Delineating the Fracture Trends and Hydrocarbon Prospects with the Aid of Seismic Attributes

A Review of the Metallogenic Mechanisms of Sandstone-Type Uranium Deposits in Hydrocarbon-Bearing Basins in China

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