Characterization of Acoustic Emission Parameters during Fracture Process of Siltstone with Prefabricated Void by Xiaorong Liu, Lulin Zheng, Hengyi He, Qing Qiu, Ziqi Liu, Xuefeng Li, Lin Yan, Gang Huang

“…In order to explore the damage effect of borehole pressure relief technology on rock, uniaxial compression and acoustic emission tests were carried out on siltstone specimens with borehole diameters of 8 mm, 12 mm, and 16 mm, respectively, and the acoustic emission signals of the whole process were collected simultaneously to explore the uniaxial compression of siltstone specimens with prefabricated holes in this paper. …”
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Investigating the Use of Open Air Burnt Sorghum and Wheat Straw Ashes to Soften Hard Water. by Bainomugisha, Jonan

“…This study investigated the use of open air burnt sorghum and wheat straw ashes to soften hard water, three water samples that is sample A which was collected from a borehole at the camp of CICO-UNRA on Hoima Butiaba Wanseko road project located in Hoima District, B from a borehole in wanseko village - kigwera parish Bulisa District, and sample C from Koranorya borehole Ruk:ungiri District. …”
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Study on Reasonable Size of Coal and Rock Pillar in Dynamic Pressure Roadway Segment of Fully Mechanized Face in Deep Shaft by Binyang Sun, Pingsong Zhang, Haifeng Lu

“…In this paper, based on the geological condition of working face 1231(1) in a mine in Huainan, a method that combines the use of a borehole and Brillouin optical time domain reflectometry (BOTDR) was proposed to analyze the stress variation laws of coal and rock pillar areas, and the parameters of the monitoring borehole and installation technique of the sensing optical cables were designed. …”
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Effect of the Preexisting Fissure with Different Fillings in PMMA on Blast-Induced Crack Propagation by Xin Yang, Xiangguo Zeng, Chuanjin Pu, Dingjun Xiao

“…In order to study the dynamic crack propagation law in fissured rock under the different fillings, a borehole with 7 mm diameter was processed in the center of a polymethyl methacrylate (PMMA) specimen. …”
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Fuzzy Comprehensive Evaluation on the Effect of Measures Operation for Oil-Water Well by Zhi-Bin Liu, Wei Qing, Xin-Hai Kong

“…The measures operation is an important component of borehole operation, and the operation effects directly affect the increase of oil and gas production. …”
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Numerical Study on Crack Propagation by Using Softening Model under Blasting by Rong Hu, Zheming Zhu, Jun Xie, Dingjun Xiao

“…In order to validate the proposed model, a set of blasting models with a crack and a borehole with different incident angles with the crack were established. …”
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Advances in Simulation of Stratigraphic-Structural Evolution of Basin Fill: A Retrospective to Guide Future Progress by Prashant Dhote, Uday Bhan

“…However, these methods face significant challenges due to sparse sampling and the inability to capture reservoir variability beyond boreholes. Geostatistical techniques typically depend on borehole data, which represent only a small fraction of the total reservoir volume. …”
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Steering Parameters for Rock Grouting by Gunnar Gustafson, Johan Claesson, Åsa Fransson

“…In Swedish tunnel grouting practice normally a fan of boreholes is drilled ahead of the tunnel front where cement grout is injected in order to create a low permeability zone around the tunnel. …”
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Analytical Solutions of a Space-Time Fractional Derivative of Groundwater Flow Equation by Abdon Atangana, P. D. Vermeulen

“…The solution obtained via Frobenius method is valid in the vicinity of the borehole. This solution is in perfect agreement with the data observed from the pumping test performed by the institute for groundwater study on one of their boreholes settled on the test site of the University of the Free State. …”
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Evolution of Wellbore Pressure During Hydraulic Fracturing in a Permeable Medium by Ali Lakirouhani

“…When the initial flaw length is small or compressibility effects are important, the initiation of the fracture is accompanied by instability and the occurrence of a sudden decrease in borehole pressure and a sudden increase in crack length. …”
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Ensuring irrigation water availability for off-season vegetable production in the face of competition from rural domestic water supplies in the commune of Lalo (Benin) by Djigbo Félicien Badou, Christophe Nouvewa, Christian Allé, Audrey Merveille Adango, Luc Ollivier Sintondji

“…Results show that a borehole operating at 85 % of its flow capacity (21.6 m3/h), effectively meets peak water demand in January, estimated at 5639.2 m3 (181.9 m3/d), with 15 % of the borehole flow allocated to domestic water supply. …”
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Micro-CT Characterization of Wellbore Cement Degradation in SO42-–Bearing Brine under Geological CO2 Storage Environment by Manguang Gan, Liwei Zhang, Xiuxiu Miao, Yan Wang, Xiaojuan Fu, Mingxing Bai, Xiaochun Li

“…For the carbonation case, precipitations in the borehole occurred in the cement sample cured at ambient pressure, while the cement sample cured at high pressure did not produce any precipitation in the borehole. …”
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Height of the Fractured Zone in Coal Mining under Extra-Thick Coal Seam Geological Conditions by Dequan Sun, Xiaoyan Li, Zhijie Zhu, Yang Li, Fang Cui

“…Observation through the borehole televiewer showed that the fractured zone height was 171 m. …”
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Penetration Form of Inter-Hole Cracks under Double-Hole Blasting Conditions with Inclined Fissures by Shiwei Shen, Yue Zhao, Chang Liu, Shulin Dai, Fei Wu, Man Jiang

“…The dominant fracture surface was formed in the vertical direction between the borehole and the fracture. Finally, the crack penetrates to form “Z”-type over-excavation, which was analyzed by the dynamic caustics test. …”
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Geomechanical Characteristics and Stimulation of Dibei Deep Tight Sandstone Reservoirs in the Kuqa Depression of Tarim Basin by Ke Xu, Haijun Yang, Hui Zhang, Zhimin Wang, Lu Fang, Guoqing Yin, Haiying Wang

“…In addition, the favorable borehole trajectory considers both the sweet spot penetration and borehole wall stability, which will reduce the difficulty of fracturing and is conducive to the efficient stimulation of tight gas reservoirs. …”
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Fast forward modeling and response analysis of extra-deep azimuthal resistivity measurements in complex model by Pan Zhang, Shaogui Deng, Xiyong Yuan, Fen Liu, Weibiao Xie

“…However, the signal is jointly affected by interfaces located both ahead of the drill bit and around the borehole, making it impossible to directly obtain the interface position from the signal. …”
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A Stepwise Discrimination Method of Multi-Index in Landslide Stability Monitoring by Hao Chen, Honggang Wu

“…Based on the monitoring data on deep displacement of borehole, there are many monitoring indicators that can reflect the slope state. …”
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Study on the Retention of Large Mining Height and Small Coal Pillar under Thick and Hard Roof of Bayangaole Coal by Shankun Zhao, Jianping Zuo, Lei Liu, Kaijun Wu

“…The coal pillar stress distribution at the 311102 working face in the Bayangaole Mine is analyzed and revealed. In addition, borehole stressmeter, PASSAT monitoring system, and numerical modelling are fully utilized. …”
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An investigation of hydraulic fracturing initiation and location of hydraulic fracture in preforated oil shale formations by Lianghao Zhai, Yang Xun, Huanan Liu, Bo Qi, Jinghua Wu, Yafei Wang, Chen Chen

“…However, the presence of the horizontal wellbore and the perforation borehole significantly complicates the distribution of the local stress field. …”
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Heavy Metal Contamination of Foods by Refuse Dump Sites in Awka, Southeastern Nigeria by J. K. C. Nduka, O. E. Orisakwe, L. O. Ezenweke, M. N. Chendo, T. E. Ezenwa

“…Nickel levels in the borehole sample ranged from 0.001 to 0.227 mg/l, whereas the highest level of lead was 0.01 mg/l. …”
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