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Zihao Yuan, Ruinan Mu, Haifeng Zhao and Ke Wang
In this work, a dynamic model is proposed to simulate the drilling and steering process of an autonomous burrowing mole to access scientific samples from the deep subsurface of the Moon. The locomotive module is idealized as a rigid rod. The characterist...
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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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Munzarin Morshed, Muhammad Saad Khan, Mohammad Azizur Rahman and Syed Imtiaz
Application of Newtonian and non-Newtonian fluids in horizontal flow loop conditions for directional drilling operations.
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Tiankui Guo, Zhanqing Qu, Facheng Gong and Xiaozhi Wang
Conventional hydraulic fracturing is not effective in target oil development zones with available wellbores located in the azimuth of the non-maximum horizontal in-situ stress. To some extent, we think that the radial hydraulic jet drilling has the funct...
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