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Fei Gao, Yu Zhang, Chang Chen, Xiaosen Li and Zhaoyang Chen
The effectiveness of horizontal well drilling in improving the gas recovery efficiency of hydrate production makes it a promising technology for commercial exploitation. However, during horizontal well drilling in hydrate reservoirs, it is crucial to con...
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Heng Liu, Wenzhi Xu, Quanchun Yuan, Jin Zeng, Xiaohui Lei and Xiaolan Lyu
In addressing the challenges of high energy consumption and low efficiency in fertilization borehole drilling for clayey soils in southern orchards, this study utilizes the Discrete Element Method to establish a simulation model for clayey soils. Through...
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Guohong Chen, Peng Cai, Jiewei Zhan, Yueqiao Yang, Zhaowei Yao and Zhaoyue Yu
Since the beginning of spring 2022, successive landslides have occurred in the eastern pit slope of the Wolong Coal Mine in Qipanjing Town, Otog Banner, Inner Mongolia, which has adversely affected the mine?s production safety. This study aims to reveal ...
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Dongyu Su, Zhifang Chen, Nanxiang Liu and Xuyue Chen
Wellbores drilled in igneous formation with weak interlayers face significant risk of instabilities. This study aims to investigate the underlying mechanisms of these instabilities by employing a combination of rock mechanics tests and numerical simulati...
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Zihan Jiao, Xuefeng Zhao, Danyang Li, Zhe Sun and Wangbing Li
In recent years, safety issues involving foundation pits have attracted extensive attention in the industry. The external angle of the foundation pit bears a greater load and is more prone to collapsing. Anchor support technology is one of the most widel...
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Abdek Hassan Aden
At the center of the Republic of Djibouti, an eroded rift called Asal is located where tectonic and magmatic activities can be observed at the surface. Multiple studies were carried out with different exploration methods, such as structural, geophysical ...
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Hua Tong and Yongbo Shao
In recent years, trenchless horizontal directional drilling (HDD) technology has developed rapidly towards the direction of large pipe diameter and long span. During construction, the buckling deformation and large drag torque of the drillstring (DS) are...
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Patrik Flegner, Ján Kacur, Milan Durdán and Marek Laciak
In the presented research, methods of processing the vibrational signal of acceleration from horizontal drilling rig aggregates were applied. The significance of the given study is that signal processing methods have not yet been applied to such an exten...
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Dimitrios Mendrinos, Constantine Karytsas, Spyridon Karytsas, Flavio Poletto, Biancamaria Farina and Erika Barison
This paper presents correlations derived by linear regression analysis of seismic velocities VP and VS and elastic moduli EP and ES with temperature in Los Humeros superhot (SHGS) and Acoculco enhanced (EGS) geothermal systems at depths down to 3 km belo...
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Sebastián Jovic,Gerardo Páez,Matías Galina,Diego Guido,Conrado Permuy Vidal,Luciano López,Stabro Kasaneva
Pág. 110 - 124
The high sulfidation epithermal gold deposit El Guanaco is located in the Palaeocene-Lower Eocene metallogenic belt in the Antofagasta Region, northern Chile, 215 km SE of Antofagasta city. The deposit is characterized by a system of sub-parallel ledges ...
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