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Fractal dimensions of shale

WebApr 8, 2024 · The heterogeneity of reservoir micro-pores and the multifractal nature of their geometric morphology control the migration of oil and gas in porous media and affect the characteristics of oil and gas accumulation and productivity at the macro-scale. In this paper, based on high-resolution x-ray microscope computer tomography (XCT), combined with … WebJan 6, 2024 · The fractal dimension can be used to evaluate the methane adsorption capacity; the larger the fractal dimension is, the larger the methane adsorption capacity is. Fractal analysis is helpful to better understand the pore structure and adsorption capacity of shale gas reservoirs.

Comparison of fractal dimensions from nitrogen adsorption data in shale ...

WebJun 28, 2024 · Whereas fractal dimension D 2 is sensitive to multiple parameters including the specific surface area, pore volume, and average pore diameter, suggesting that D 2 may represent the pore structure fractal dimension. (4) Shale with a large fractal dimension D 1 and a moderate fractal dimension D 2 has a strong capacity to store both adsorbed … WebAbstract： In the exploration and development of shale oil and gas,the research on pore structure characteristics of shale oil ... objects in this paper.The samples are classified according to the horizon and the are used in related experiments.The fractal dimensions of Wufeng Longmaxi formation are obtained by calculation.The fractal ... jeans oreiro https://mwrjxn.com

Fractal Dimension - BU

WebApr 27, 2024 · Compared with sandstone, the differences between fractal dimensions D 1 and D 2 of shale were larger, with the data points of six shale samples being farther away from the dotted line (D 1 = D 2) in Figure 12c. This may have resulted from the greater diversity of surface irregularities in pores with different sizes in shale. WebAug 20, 2016 · The fractal dimension values of shale are similar to that of coal, and this reflects that surface roughness of pores larger than 65 nm in both coal and shale is very similar. Based on the fractal principle, the calculated fractal dimension for this model can’t be larger than 3, but some calculated results shows the fractal dimensions are ... WebA fractal dimension is an index for characterizing fractal patterns or sets by quantifying their complexity as a ratio of the change in detail to the change in scale.: 1 Several types … jeans opruiming

Pore Structure and Fractal Characteristics of Shale under the

Category:Fractal dimension changes of shale pore structure and influence …

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Fractal dimensions of shale

Fractal dimension changes of shale pore structure and influence …

WebDec 16, 2024 · To study the mechanical behaviors of shales under uniaxial compression tests, two fractal dimensions Fs and Fb are used, in which Fs is calculated by the size distribution of fragmentations and Fb is … WebThe occurrence and flow of shale gas are substantially impacted by nanopore structures. The fractal dimension provides a new way to explore the pore structures of shale reservoirs. In this study, eight deep shale samples from Longmaxi Formation to Wufeng Formation in Southern Sichuan were selected to perform a series of analysis tests, which …

Fractal dimensions of shale

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http://math.bu.edu/DYSYS/chaos-game/node6.html WebWe assemble a multiscale physical model of gas production in a mudrock (shale). We then tested our model on 45 horizontal gas wells in the Barnett with 12–15 years on production. When properly used, our model may enable shale companies to gain operational insights into how to complete a particular well in a particular shale. …

WebAug 21, 2024 · Coalbed methane (CBM) and shale gas become two most important unconventional natural gas resources in US. The fractal dimension, known as the degree of self-similarity or irregularity, is an ... WebJun 12, 2024 · The fractal dimension can be taken as a visual indicator that represents the degree of development of the pore structure in shale. This paper tries to determine the key evaluation parameters of shale …

Websurface fractal dimension of a porous solid (D N) which can be expressed by:28 S(r) r2 DN (4) where S(r) is the surface area and r is the length of the yardstick which is used to … WebJun 12, 2024 · The fractal dimension can be taken as a visual indicator that represents the degree of development of the pore structure in shale. Keywords: Longmaxi Formation shale; pore structure; N 2 adsorption; …

WebApr 27, 2024 · According to the fractal FHH model, the ln(ln(p 0 /p)) versus ln(V) plots and calculated fractal dimension results of samples shale 6#, shale 5#, shale 4#, shale 3#, and shale 2# from N 2 adsorption data …

WebThe estimated permeability based on roughness fractal dimension is the best match. Gas relative permeability increases when fractal dimension increases, which means the … jeans organizer amazonWebJan 8, 2024 · Considering Tables 1–3, it is concluded that the fractal dimensions of samples would vary based on the model that is used. It can be seen that the FHH fractal … lada 507 paisWebJul 5, 2024 · The fractal dimension values of the studied shale range from 2.4292 to 2.6109, with a mean value of 2.5245, which is similar to the (mean 2.5990) of marine shale from the lower Cambrian Qiongzhusi Formation but larger than the (mean 2.3815) of lacustrine shale from the Qingshankou Formation of the Songliao Basin . lada 51 paisWebApr 2, 2024 · The fractal dimension quantifies the degree of roughness and is influenced primarily by the pore surfaces within the shale that typically include micro-, meso- and … lada 55 paisWeb(2) The fractal dimension of the fissures rised from 1.4 to 1.5, the total area of fissures is increased from 16,638 pixels to 17,707 pixels, and the total length is increased from 2217 to 3071 ... jeansoriginal opinieWeb12 rows · Mar 1, 2016 · Liang et al. (2015) showed that the fractal dimension of Wufeng shale that controls the pore ... The fractal dimensions of lacustrine shale are negatively correlated with the clay … Typical X-ray energies are in the range 30–160 keV for micro-CT machines – … The fluid characterization data obtained from XCMT can also be used as input. … The sizes and connections of the pores in a network of tetrahedral pores have been … Fractal modeling of capillary pressure curves for The Geysers rocks. … High pressure Mercury intrusion techniques are widely used for the determination of … Pore connectivity is limited in shale formations, unlike in conventional … Our point therefore is that algorithms for extraction of pore networks, whether … In the present work, high purity cBN powder (< 10 μm), Al powder (< 5 μm) and HfC … 1.. IntroductionThe first use of a network of pores to represent multiphase flow in … jeans organicWebThe estimated permeability based on roughness fractal dimension is the best match. Gas relative permeability increases when fractal dimension increases, which means the stronger wettability of core. Water changes pore structure directly, which leads to changes of mechanical properties and percolation ability of shale. jeans orgvsm donna