Pore fractal characteristics

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August undefined, 2024

WebOct 18, 2024 · Exploration practice indicates that free gas is the key to the large-scale development of shale gas, while adsorbed gas is also of great significance to the sustainable development of shale gas, and thus systematic researches on absorbed pores are needed. To date, researches on pore structure and multi-scale fractal characteristics … 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 ...

The fractal characteristics of pore size distribution in

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 … 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. software for plumbing business

Pore structure, fractal characteristics and permeability prediction of ...

<3) fractal dimension D is calculated as D=6-p, for surface fractals D=p. 29 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). WebFinally, combined with TOC and mineral compositions, the relationship between pore structure and fractal dimension is discussed. And the following research results are obtained. First, dominant lithofacies of Dalong Formation are argillaceous-rich siliceous shale and argillaceous-rich/siliceous mixed shale, which has smaller specific surface area … slow fluorescent protein

Pore Fractal Characteristics of Hydrate‐Bearing Sands and …

Fractal characteristics of shale pore structure and its influence on ...

WebPore pressure prediction Wellbore stability in HPHT conditions Hydraulic fracturing with acid and proppant ... The lack of direct data and the complexities of the fracture characteristics make fracture network prediction and modelling in these applications very ... Application of power-spectrum–volume fractal method for detecting hypogene, ... 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. software for plumbing contractorsWebChuck 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 ... software for pny m.2 pcie drive

"WebNov 15, 2024 · Fractal analysis was performed on carbonate core plug samples from the Ordovician Majiagou carbonate reservoirs in the Ordos Basin using mercury intrusion capillary pressure (MICP), nuclear magnetic resonance (NMR), and the x-ray computed tomography (CT) measurements to improve our understanding of the pore structure … " - Pore fractal characteristics

Pore fractal characteristics

$Pore structure, fractal characteristics and permeability prediction of ...$

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, … WebThe surface of C16 was covered with highly porous apatite layers comprising large pores measuring 600–800 nm and smaller pores inside it measuring 200–400 nm ... In particular, C12 with biomimetic hierarchical micro-/nanohybrid topography demonstrated superior fractal features, the best capacity in protein adsorption and the ensuing ...

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WebWith 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 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

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 WebFeb 12, 2024 · Results show that the pore space occupied by fluids within hydrate-bearing sands is inherently fractal. The area pore-size fractal dimension decreases but the tortuosity fractal dimension changes little with increasing hydrate saturation, and the sum of these two fractal dimensions can be used to predict the volume pore-size fractal dimension.

WebApr 13, 2024 · The D values of MNAs were 2.93 (D S) and 2.87 (D N), respectively, indicating a typical surface fractal feature and the dominance of open pores in the composite aerogels. WebFeb 15, 2024 · The pore structures present multiple fractal behaviors, with fractal dimensions showing an increasing trend as the pore diameter decreases. The cover coefficient, a parameter that allows characterization of the caprock sealing performance, shows an increasing trend along with increasing the fractal dimension of pore structure.

WebMar 28, 2024 · The evaluation of pore characteristics in lacustrine shales is of significance for shale oil and ...

WebPore Fractal Characteristics of Hydrate-Bearing Sands and Implications to the Saturated Water Permeability 1 Introduction. Gas hydrates are crystalline compounds composed of water and gas molecules, and they are mainly found in... 2 Theory and Experimental Method. In nature, the cumulative number of ... software for port agentsWebThe 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. software for planning and schedulingWebAug 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. slow flushing toilet remedyWebpores 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 slow flushing toilet cureWebMay 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. slow flu recoveryWebMay 27, 2024 · It is important to control and predict the macroscopic properties through pore structure parameters of cement-based materials. Microscopic pore structure of concrete has many characteristics, such as sizes and disordered distribution. It is necessary to use fractal theory to describe the pore structure of concrete. In order to establish the … software for playing dvdWebNov 20, 2024 · By calculating pore surface fractal dimensions based on Zhang’s fractal model, the obvious fractal characteristics of micropores (<100 nm) and macropores (> 10 5 nm) have been found. software for plagiarism checker online