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Jinsheng Cui, Baoxian Chen, Sibo Liu, Deming Zhao and Weiwei Zhang
Water ice is an important water source in lunar polar soil. Drilling and sampling lunar polar soil are important engineering tasks of lunar exploration. In view of the influence of temperature rise on the quality of samples obtained by drilling, the heat...
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Jinsheng Cui, Le Kui, Weiwei Zhang, Deming Zhao and Jiaqing Chang
As the frozen soil in the South Pole region of the Moon is an important water resource, the operation of drilling and retrieving samples of the frozen soil in this region will be a crucial task for us to accomplish in future deep-space exploration. Thus,...
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Georgios Makrodimitras, Anastasios Nikitas, Dimitrios Ktenas, Angelos G. Maravelis, Niki Marina Rokana, Nikolaos Pasadakis, Efthimios Tartaras and Aristofanis Stefatos
The Epanomi gas field discovery during the 1980s at the eastern fringe of the Thermaikos Basin in Northern Greece proved the existence of an active petroleum system in the area. Seismic and drilling exploration programs in the area provide data to study ...
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Yingjie Wang, Qiang Tan, Desheng Wu, Hao Chen, Naikun Hu and Yuxuan Zhao
In the deep well drilling process in the Fukang Depression of the Eastern Junggar Basin, rock fracturing issues and low rate of penetration (ROP) have posed significant challenges to drilling efficiency. Accurate predictions of ROP prior to drilling are ...
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Pyeong An Lee and Bo Hyun Kim
In microbiochips and microfluidic devices, microholes are a basic and important feature. The microdrilling of glass materials without cracks is still challenging in the fabrication of glass-based microdevices. This paper investigates the characteristics ...
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Francesca Glaviano, Roberta Esposito, Anna Di Cosmo, Francesco Esposito, Luca Gerevini, Andrea Ria, Mario Molinara, Paolo Bruschi, Maria Costantini and Valerio Zupo
Monitoring of aquatic ecosystems has been historically accomplished by intensive campaigns of direct measurements (by probes and other boat instruments) and indirect extensive methods such as aero-photogrammetry and satellite detection. These measurement...
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Muhammad Aamir, Majid Tolouei-Rad, Ana Vafadar, Muhammad Nouman Amjad Raja and Khaled Giasin
Multi-spindle drilling simultaneously produces multiple holes to save time and increase productivity. The assessment of hole quality is important in any drilling process and is influenced by characteristics of the cutting tool, drilling parameters and ma...
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Vasil Ivasiv,Andriy Yurych,Sergii Zabolotnyi,Lidiia Yurych,Vasyl Bui,Orest Ivasiv
Pág. 15 - 20
At present, the most common tools for drilling operations are those rock-destroying ones that are equipped with cutting elements made from polycrystalline diamonds (PDC) and diamond carbide inserts (DCI). Given this, it is a relevant task to study the in...
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Emin Musa Afandiyev,Mahamadali Nuraddin Nuriyev
Pág. 47 - 51
An analysis of the discarded drill pipes that had been used in wedge grips has revealed that the main reason for pipe rejection is the reduction of a pipe wall as a result of plastic deformations, due to damaging the pipe surface by the die teeth. The lo...
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Da Gong, Xiaopeng Fan, Yazhou Li, Bing Li, Nan Zhang, Raphael Gromig, Emma C. Smith, Wolf Dummann, Sophie Berger, Olaf Eisen, Jan Tell, Boris K. Biskaborn, Nikola Koglin, Frank Wilhelms, Benjamin Broy, Yunchen Liu, Yang Yang, Xingchen Li, An Liu and Pavel Talalay
Coring sediments in subglacial aquatic environments offers unique opportunities for research on paleo-environments and paleo-climates because it can provide data from periods even earlier than ice cores, as well as the overlying ice histories, interactio...
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