Pore fractal characteristics

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August undefined, 2024

WebThe geometry parameters of roundness and shape index were adopted to study the pore morphology characteristics, and the relationship between geometry parameters and pore fractal dimension of the RAS were established by regression analysis method. WebMar 2, 2024 · The contributions of key pore geometry parameters, including the maximum pore diameter, minimum pore diameter, porosity, and fractal dimensions, to the initial permeability were investigated. A numerical analysis showed that the influence of fractal dimension on the permeability is finally reflected in the influence of pore structure …

New cognition on pore structure characteristics of Permian …

WebFeb 15, 2024 · Characteristics of pore structure of different metamorphic coal were discussed. • The fractal dimension characteristics of pore structure are studied. • Through fractal dimensions of pores, the accurate data of pore sizes in a wider range are obtained. • The new pore classification scheme is put forward by piecewise fractal dimensions. WebApr 12, 2024 · Abstract Wetting and drying (WD) cycles have a strong influence on the structure of soil, especially on the pore distribution, which can significantly affect soil quality and crop growth. Most studies have conducted the controlled cycles effects on soil pores at the laboratory. However, the effects of natural wetting and drying cycles (NWD) on the … ttc bid awards

Effects of cation exchange on the pore and surface structure and ...

WebFractal objects are characterized by self-similarity within a spatial range. The fractal dimension is calculated from the p exponent of Eq. 2, and gives information about the pore surface before and after the addition of the natural extract. For mass fractals (2 http://kjc.upc.edu.cn/_upload/article/files/c9/71/267df9104b9f9eb9db07c921f2b4/9e6e8a6c-c9d9-4ee0-b205-3ccd9de022d8.pdf WebApr 1, 2024 · DOI: 10.1016/j.energy.2024.127470 Corpus ID: 258047069; Experimental study of effect of liquid nitrogen cold soaking on coal pore structure and fractal characteristics @article{2024ExperimentalSO, title={Experimental study of effect of liquid nitrogen cold soaking on coal pore structure and fractal characteristics}, author={}, journal={Energy}, … ttc berlin eastside e.v

Pore Structure and Multi-Scale Fractal Characteristics of …

Effects of Wetting-Drying Cycles on the CT-Measured Macropore ...

WebAug 30, 2024 · When quantifying the complexity of shale pores, the fractal dimension is between 2 and 3. The larger the fractal dimension is, the more complex the shale pore structure. The object does not have fractal characteristics if the fractal dimension is less than 2 or greater than 3 (Tang et al., 2024). Results Pore types and characteristics of shale WebMay 1, 2024 · The pore surface fractal dimension (D S) of HBPRC in gel, capillary, and large pore regions decreases sequentially although it has no physical characteristics in a transition pore region. The incorporation of fibres has an insignificant effect on D S in gel and capillary pore regions; however, it has a reducing effect on D S in the large pore region. ttc berusWebFractal Analysis of Shale Pore Structure of Continental Gas Shale Reservoir in the Ordos Basin, NW China Energy & Fuels 2016-05-03 姜福杰姜福杰姜福杰，陈迪，陈健，李倩文，刘莹，邵新荷，胡涛，代进雄 30（6） 113 是 2 Pore characteristic analysis of a lacustrine shale: A case study in the Ordos Basin, NW phoebe thomas hetty feather

"WebIn this study, the microscopic pore distribution characteristics of fiber-reinforced cement mortar were obtained by using nuclear magnetic resonance (NMR) technology. The change trend of T2 spectrum curve and porosity cumulative distribution curve showed that the freeze-thaw resistance of cement mortar increased first and then decreased with the fiber … " - Pore fractal characteristics

Pore fractal characteristics

Evaluation of highly carbonated hydroxyapatite bioceramic …

WebFractal Characteristics of Coal Pores Based on Classic Geometry and Termodynamic models Acta Geologica Sinica-English Edition 2011 年 6 月 15 日 To better understand the characteristics of coal pores and their influence on coal reservoirs, coal pores in … WebApr 14, 2024 · On the other hand, the pore size is concentrated in the range of 0.1–1 μm in tight oil reservoirs, and the pore characteristics of such reservoirs show obvious micro-nano scale effects. 7 7. T. M. Koper Marc, “ Structure sensitivity and nanoscale effects in electrocatalysis,” Nanoscale 3(5), 2054– 2073 (2011).

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WebAug 17, 2024 · The present work is closely related to two streams of literature: coal pore structure characteristics and coal fractal characteristics. In the study of Guo et al. (2024), low quality blended coal is used as raw material to prepare gasified-coke under different residence time, and the changes of pore structure and fractal dimension are investigated. WebApr 20, 2024 · In this study, various testing methods were used to analyze the mineral characteristics, reservoir storage types and pore-throat network characteristics of the Permian tight sandstone in the Upper Paleozoic of the Ordos Basin. A fractal method was applied to evaluate the reservoirs’ microscopic heterogeneity. According to the results, the …

WebSeveral parameters such as size, shape and orientation of pores have been evaluated. In parallel, the mechanical properties such as fracture toughness and Weibull modulus were directly measured. In order to appreciate the relevance of the use of QIA, the mechanical parameters have also been deduced from the microstructural features, and a comparison … WebDec 14, 2024 · The total pore volume of PH lignite increases rapidly in the pore size range of 0.46–25 nm, the growth rate changes steeply in the pore size range of 25–147.5 nm, and then, it gradually becomes flat and stable, indicating that the cumulative pore volume contribution of PH lignite mainly comes from the pore volumes of ultra-micropores, …

WebSep 15, 2014 · CT X-ray was used to image surface features of biofilm and permeability pathways within the micron-scale pore networks of an oil-reservoir sandstone core (depth 4,796.2 ft), Eutaw Formation ... WebBi-fractal characterizatio n of the pore network of tight sandstone 论文 2024 年作者排序：第一作者；期刊名称： Frontiers in Earth Science；系统收录情况： SCI；发布当年影响因子：2.273； Song-Bi-Fractal Characterization of the Pore N.pdf 3 Dynamic reconstruction of the hydrocarbon generation ...

WebMay 27, 2024 · Further, with the help of mercury intrusion porosimetry (MIP) data and the MATLAB programming, the pore and SEM photos fractal dimensions of AACGS mortar specimens were obtained, respectively, and the relationship between the microscopic fractal dimensions and the macroscopic strength and the structural characteristics of pores was …

WebSep 6, 2024 · Pore fractal characteristics. Fractal theory has been widely used to analyze the irregularity and complexity of the pore structure in porous media. According to the percolation theory, in the process of a high-pressure mercury injection experiment, mercury will enter the sample in two stages. ttcbhWebpores showed typical three-stage fractal characteristics at boundary points of 1 nm and 9 nm (7 nm of coal samples from Zhaozhuang Colliery), and the fractal dimension with 1–9 nm (or 1–7 nm), as being significantly larger than those measured outside the given ranges. Pores in samples from ttc bike hoursWebJun 15, 2024 · The pore-size distribution and the fractal characteristics of the microscopic pore structure are systematically examined by means of nitrogen adsorption and mercury intrusion tests. ... The fractal dimension of the microscopic pore structure reveals two inflection points measuring approximately 5 and 80 nm, ... phoebe thomas naturopathWebEvaluation of carbonate heterogeneity, closely related to pore geometry and connectivity, is important in oil and gas field production and reservoir prediction 掌桥科研一站式科研服务平台 ttc bilibili prehistoryWebWith the development of coal-bed methane (CBM) mining technology, deep coal-beds have become the target of CBM development. In order to simulate changes in coal adsorption and permeability characteri ttc benchWebChuck Speicher has been a visionary leader in every endeavor he has chosen to pursue over a career that spans more than 3 decades. First in the wireless industry where his accomplishments lead an ... phoebe thompson forumWebJan 6, 2024 · 4.4 Pore fractal characteristics. The D is widely used to characterize the surface roughness and spatial structure complexity of porous media (Yang et al., 2014; Li et al., 2024; Peng et al., 2024). D is a quantitative index used to characterize the roughness or complexity of a solid surface. phoebe thompson instagram