Pore Connectivity Characterization of Lacustrine Shales in Changling Fault Depression, Songliao Basin, China: Insights into the Effects of Mineral Compositions on Connected Pores

Li, Zhuo; Liang, Zhikai; Jiang, Zhenxue; Yu, Hailong; Yang, Youdong; Xiao, Ling

doi:10.3390/min9030198

Cited by 13 publications

(3 citation statements)

References 82 publications

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“…Geological structure plays an important role in the process of CBM generation, occurrence, migration, and enrichment in coal seams [4][5][6][7][8][9][10][11]. Especially, the influence on CBM occurrence from the geological structure modification of the coal reservoir physical properties, such as porosity, adsorption, and permeability [12][13][14][15][16][17][18][19][20]. Research has been focused on the variation of gas content with geological structure; generally, fold and fault.…”

Section: Introductionmentioning

confidence: 99%

Multi-Phase Tectonic Movements and Their Controls on Coalbed Methane: A Case Study of No. 9 Coal Seam from Eastern Yunnan, SW China

Jiang

et al. 2020

Energies

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Multi-phase tectonic movements and complex geological structures limit the exploration and hotspot prediction of coalbed methane (CBM) in structurally complex areas. This scientific problem is still not fully understood, particularly in the Bumu region, Southwest China. The present paper analyses the occurrence characteristics and distribution of CBM based on the comprehensive analysis of CBM data. In combination with the analysis of the regional tectonics setting, geological structure features and tectonic evolution. The control action of multi-phase tectonic movements on CBM occurrence are further discussed. Results show that the Indosinian local deformation, Yanshanian intense deformation, and Himalayan secondary derived deformation formed the current tectonic framework of Enhong synclinorium. The intense tectonic compression and dextral shear action in the Yanshanian and Himalayan movements caused the complex geological structures in Bumu region, composed of the Enhong syncline, associated reverse faults and late derived normal fault. The CBM distribution is complex, which has the central and western NNE-trending high gas content zones along the syncline hinge zone and the reverse faults. The geological structure controls on CBM enrichment are definite and important. Based on geological structure features and responses of gas content, methane concentration, and gas content gradient, the gas controlling patterns of geological structure are determined and can be classified into five types: the reverse fault sealing, syncline sealing, monoclinal enrichment, normal fault dispersion, and buried floor fault dispersion types. The structural compression above the neutral surface plays an important role in the syncline sealing process, which is indicated by an increase in gas content gradient. The EW-trending tectonic intense compression and dextral shear action in the Himalayan movement avoided the negative inversion of NNE-trending Yanshanian compressive structure and its destruction of CBM reservoir. However, the chronic uplift and derived normal fault during Himalayan period caused the constant dissipation of CBM.

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Section: Introductionmentioning

confidence: 99%

Multi-Phase Tectonic Movements and Their Controls on Coalbed Methane: A Case Study of No. 9 Coal Seam from Eastern Yunnan, SW China

Jiang

et al. 2020

Energies

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“…Several papers [22][23][24][25][26][27] in this special issue focus on energy geology, addressing the structure and composition of coal and shale nanominerals as well as changes in nanopores and their fractal dimensions. They also describe structural characteristics such as the size, shape, and connectivity of nanopores in unconventional oil and gas reservoirs, along with their evolutionary laws and control factors.…”

mentioning

confidence: 99%

“…Pore connectivity of lacustrine shales has been inadequately documented in previous papers. Li and coauthors [27] examine findings relating to lacustrine shales from the lower Cretaceous Shahezi Formation in the Changling Fault Depression (CFD) based on investigations using field emission scanning electron microscopy (FE-SEM), mercury intrusion capillary pressure (MICP), low-pressure gas (CO 2 and N 2 ) sorption (LPGA), and spontaneous fluid imbibition (SFI) experiments. Their findings indicate that pores observed from FE-SEM images are primarily interparticle (interP) pores in clay minerals and organic matter (OM) pores.…”

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confidence: 99%

Editorial for Special Issue “Nanomineralogy”

Wan

Hochella

2020

Minerals

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Hydrothermal from – Geology to Nanotechnology and Nanogeoscience (Part - II)

Namratha

Nayan

Pandareesh³

et al. 2022

Journal of the Geological Society of India

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Hydrothermal process from a pure geologic science has now become one of the fast-emerging processing technologies to synthesize nanomaterials in the laboratory. Today it is an advanced technological tool, which facilitates to obtain nanomaterials and nanoparticles with desired size, shape, quality and functionality. In fact, hydrothermal technique has its bearing on the nature-inspired or geo-mimetic processes that are being employed extensively in the laboratory. The natural hydrothermal processes are acting ever since earth came into existence, and leading to the formation of a large variety of minerals, rocks and ores. Earth is a blue planet of the universe, where water is a major component which plays an important role in the formation of geological materials and hydrothermal circulation has always assisted by bacteria, photochemical and other related activities. The synthesis of advanced technological materials often occurs in the presence of biomolecules, proteins, organic ligands, DNA and amino acids. An understanding of nanogeoscience is becoming very relevant in the current context and is crossing into almost all the branches of geology including palaeoecology, mineralogy, environmental geology, energy geology, geochemistry, etc. Similarly, the hydrothermal processes in nature cover several branches of geology whether it is the origin of ores, minerals, rocks, but also life on the earth. In the present review, the authors discuss all the above aspects in detail with a future perspective of the field. Also, the authors have described the evolution of hydrothermal process from pure geology to the nanotechnology, nanogeoscience, nano-geopolymers, etc., with specific examples and depicted its relevance to the geologic science.

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Pore Connectivity Characterization of Lacustrine Shales in Changling Fault Depression, Songliao Basin, China: Insights into the Effects of Mineral Compositions on Connected Pores

Cited by 13 publications

References 82 publications

Multi-Phase Tectonic Movements and Their Controls on Coalbed Methane: A Case Study of No. 9 Coal Seam from Eastern Yunnan, SW China

Multi-Phase Tectonic Movements and Their Controls on Coalbed Methane: A Case Study of No. 9 Coal Seam from Eastern Yunnan, SW China

Editorial for Special Issue “Nanomineralogy”

Hydrothermal from – Geology to Nanotechnology and Nanogeoscience (Part - II)

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