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Boyuan Zhu, Jianghui Meng, Chen Song, Renfang Pan, Zhengping Zhu and Jineng Jin
The structural evolution and sedimentary differentiation of the Sichuan Basin in China are complex, with intricate reservoir pore structures that significantly impact shale gas production. This study examines the complexity and heterogeneity of the micro...
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Kaipeng Zhu, Kai Li, Yadong Ji, Xiaolong Li, Xuan Liu, Kaide Liu and Xuandong Chen
The microscopic pore structure of sandstone determines its macroscopic permeability. Based on computer tomography (CT) technology, CT scans were performed on three different types of sandstone pore structures, namely coarse sandstone, medium sandstone, a...
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Yalin Nan, Ya-Ni Wei, Kui Liu and Yanbo Cao
The micro pores in loess show regional variation in structure on the Loess Plateau and greatly influence the physical properties and macro behaviors of loess. In this study, the 3D microstructures of Malan loess from Lanzhou (LZ), Qingyang (QY), Hengshan...
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José V. Gaspareto, Jocenei A. T. de Oliveira, Everton Andrade and Luiz F. Pires
Representative elementary volume (REV) is required for representative measurements of soil physical properties. However, questions may arise whether REV depends on how the soil structure is modified or whether processes in the soil affect REV. Here, we e...
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Fengjuan Dong, Zeyong Sun, Zhanwu Gao, Xuefei Lu, Yue Chen, Hai Huang and Dazhong Ren
Nanoscale pore-throat systems are widely developed in the pore-throat of tight reservoirs. The pore-throat structures of different microscales are complex and diverse with obvious microscale effects. Taking the Chang 63 tight sandstone reservoir of the H...
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Sheng Wu, Yongchun Tang, Mian Lin and Andrew Sneddon
Cuttings/cores? Headspace Isotope and Composition Analysis (HICA) provides an effective way to calculate the nano pore throat size and distributions much like nitrogen and CO2 adsorption BET/BJH analysis, and it could also provide information about the o...
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Lei Chen, Dongqing Li, Feng Ming, Xiangyang Shi and Xin Chen
In cold regions, hydraulic conductivity is a critical parameter for determining the water flow in frozen soil. Previous studies have shown that hydraulic conductivity hinges on the pore structure, which is often depicted as the pore size and porosity. Ho...
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Maria Dolores Fidelibus, Ilenia Argentiero, Filomena Canora, Roberta Pellicani, Giuseppe Spilotro and Gaetano Vacca
Studies dating almost a century relate clay properties with the structure of the diffuse double layer (DDL), where the charged surfaces of clay crystal behave like an electric capacitor, whose dielectric is the interstitial fluid. The intensity of the in...
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Xiaoming Guo, Tongqian Zhao, Lin Liu, Chunyan Xiao and Yuxiao He
Sewage irrigation has a strong influence on the physical, chemical, and biological properties of soil. However, the effects of sewage irrigation on the pore characteristics of soil are not well understood. This study compares the effects of sewage irriga...
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Jaqueline Dalla Rosa, Miguel Cooper, Frédéric Darboux, João Carlos Medeiros, Carla Campanaro and Luiz Roberto Martins Pinto
Surface crusts, formed by raindrop impact, degrade the soil surface structure causing changes in porosity. An experiment was conducted with the objective of evaluating the influence of the formation of a crusting layer on the porosity (percentage of area...
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Rudzani A Sigwadi, Sipho E Mavundla, Nosipho Moloto, Touhami Mokrani
Zirconia nanoparticles were prepared by the precipitation and ageing methods. The precipitation method was performed by adding ammonium solution to the aqueous solution of zirconium chloride at room temperature. The ageing method was performed by leaving...
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Xianzheng Yu, Hua Liu, Xiaolin Fan, Liangyu Zhu, Chengqi Zhang and Shiyi Zhang
In marine environments, bridge piers and columns are prone to corrosion caused by harmful media, particularly chloride ions. This corrosion can lead to cracking of the steel bars in the protective layer of the bridge piers. To enhance the corrosion resis...
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Jinhuan Zhao, Changling Liu, Chengfeng Li, Yongchao Zhang, Qingtao Bu, Nengyou Wu, Yang Liu and Qiang Chen
Characterizing the electrical property of hydrate-bearing sediments is essential for hydrate reservoir identification and saturation evaluation. As the major contributor to electrical conductivity, pore water is a key factor in characterizing the electri...
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Yasutaka Tanaka, Taro Uchida, Hitoshi Nagai and Hikaru Todate
Soil pipes are commonly found in landslide scarps, and it has been suggested that build-up of pore water pressure due to clogged soil pipes influences landslide initiation. Several researchers have also suggested that entrapped air in the soil layer incr...
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Manting Zhang, Mingyi Hu, Sile Wei, Quansheng Cai, Wei Fu, Fang Shi, Lei Zhang and Haiyan Ding
The Upper Permian Longtan Shale is a significant reservoir in western Guizhou. To clarify the main factors controlling the low-mature marine?continental transitional shale pore development in western Guizhou, pore types were classified with scanning elec...
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Abdulrazak Jinadu Otaru, Olalekan David Adeniyi, Ige Bori, Olufemi Ayodeji Olugboji and Joseph Obofoni Odigure
In recent decades, cellular metallic materials have increasingly been used for control of reverberation and cutback. These materials offer a unique combination of expanded pores, high specific surfaces, improved structural performance, low weight, corros...
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Hongwei Deng, Guanglin Tian, Songtao Yu, Zhen Jiang, Zhiming Zhong and Yanan Zhang
Micro-pore structure has a decisive effect on the physical and mechanical properties of porous materials. To further improve the composition of rock-like materials, the internal relationship between microscopic characteristics (porosity, pore size distri...
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Shaohua Wang, Pandi Wang, Hualing Zhai, Qibo Zhang, Linya Chen, Lunliang Duan, Yifei Liu and Dong-Sheng Jeng
In this paper, the results of a series of experiments on wave-induced pore-water pressures around a mono-pile are presented. Unlike the previous study, in which the mono-pile was fully buried, the mono-pile in this study was installed at 0.6 m below the ...
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Zipeng Wang, Yue Zhu, Zhenxue Jiang, Houjian Gong, Yu Yang, Bo Wang and Xin Wang
The continental shale oil resource in China exhibits significant potential and serves as a crucial strategic alternative to the country?s conventional oil and gas reserves. The efficacy of shale oil exploration and production is heavily contingent upon t...
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Bicheng Zhou, Anatoly V. Brouchkov and Jiabo Hu
Frost heaving in soils is a primary cause of engineering failures in cold regions. Although extensive experimental and numerical research has focused on the deformation caused by frost heaving, there is a notable lack of numerical investigations into the...
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