Results 41 to 50 of about 3,562,404 (304)

Research of weight on bit transmission law of ultra-long directional borehole along coal seam

Gong-kuang zidonghua, 2019
In order to further increase directional borehole depth along coal seam and improve drilling efficiency of ultra-long directional borehole, influencing factors of weight on bit(WOB) transmission of ultra-long directional borehole along coal seam were ...
LIU Fei, XU Chao, WANG Xian, JIANG Lei, BI Zhiqi   +4 more
doaj   +1 more source

A Novel Efficient Borehole Cleaning Model for Optimizing Drilling Performance in Real Time

Applied Sciences, 2023
The drilling industry has evolved significantly over the years, with new technologies making the process more efficient and effective. One of the most crucial issues of drilling is borehole cleaning, which entails removing drill cuttings and keeping the ...
Mohammed Al-Rubaii, Mohammed Al-Shargabi, Dhafer Al-Shehri, Abdullah Alyami, Konstantin M. Minaev   +4 more
doaj   +1 more source

Improving gas bubbles’ half life in foam drilling fluid [PDF]

, 2013
An underbalanced drilling using foam drilling fluid is one of the most effective solutions which are capable of preventing formation damage, differential sticking, or circulation lost.
Ismail, Ahmad Shamsulizwan, Mamat, Baihaqi, Mamat, Nur Suriani, Mamat, Mohd Baihaqi, Ismail, Issham, Kamis, Azmi, Ikhsan, Azman   +6 more
core   +1 more source

Application of Response Surface Methodology in Lunar Deep Rock Layer Drilling Experiments in Low-Temperature and Anhydrous Environments

Aerospace
The Chang’e project has completed a sampling mission of the shallow lunar soil layer; however, the exploration of the deep lunar rock layer remains unaddressed.
Xinyue Zou, Qian Li, Lanlan Xie
doaj   +1 more source

Bridging the gap: a genetically validated avian chorioallantoic membrane platform for investigation of spontaneous circulating tumor cells

Molecular Oncology, EarlyView.
We established the avian chorioallantoic membrane (CAM) assay as a scalable in vivo model for studying circulating tumor cells (CTCs). Human gastrointestinal tumors spontaneously released genetically validated CTCs that were detected across multiple platforms, demonstrating that the CAM model provides an accessible tool for investigating early cancer ...
Dennis Roth, Rui P. L. Neves, Julia Geheb, Christian Ballmeyer, Nathalie Gaßmann, Kiki C. Andree, Monica Sudarsanam, Christiane Driemel, Celine Örencik, Andrè Franken, Eslam Elmaghraby, Sven H. Loosen, Roderburg Christoph, Sebastian Schoelch, Hans Neubauer, Wolfram T. Knoefel, Nikolas H. Stoecklein, Georg Fluegen   +17 more
wiley   +1 more source

Hole Cleaning during Drilling Oil and Gas Wells: A Review for Hole-Cleaning Chemistry and Engineering Parameters

Advances in Materials Science and Engineering, 2023
Efficient hole cleaning during drilling operations is critical to maintain a high rate of penetration and smooth drilling, leading to minimum drilling problems and economical drilling efficiency. This process involves several important factors, including
Mohammed Al-Rubaii, Mohammed Al-Shargabi, Dhafer Al-Shehri   +2 more
doaj   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

DigiChrom: A Domain Ontology for Semantic Representation of Trivalent Chromium Platings and Its Large Language Model‐Based Alignment With Multiple Mid‐Level Ontologies

Advanced Engineering Materials, EarlyView.
Digitalizing electroplating requires both domain knowledge and interoperability. This work introduces PlatOn, a domain ontology for trivalent chromium plating and coating characterization, and a hybrid pipeline that aligns it to a mid‐level reference ontology by combining eight similarity metrics with language model reasoning. Expert‐validated mappings
Janik Harter, Elena Garcia Trelles, Christoph Schweizer, Thomas Seifert, Christoph Baumer, Mahmoud Elkady, Katja Feige, Daniel Grimme, Edgar Hoffmann, Andreas Waibel, Anke Walter   +10 more
wiley   +1 more source

Designing Orthogonal‐Arc Trajectories for Horizontal Wells to Reduce Drilling Cost in Development of Shale Oil/Gas Reservoirs

Energy Science & Engineering
Designing 3‐dimensional (3D) horizontal well trajectories is critical for enhancing drilling efficiency in shale reservoirs. The objective of this work is to develop an easy‐to‐drill 3D trajectory to cut drilling cost in the development of shale oil/gas ...
Jun Zhang, Boyun Guo, Sohail Nawab
doaj   +1 more source

Proceedings of the Integrated Ocean Drilling Program 338: Stage 3: NanTroSEIZE Plate Boundary Deep Riser 2

, 2014
<p>As part of the NanTroSEIZE program, operations during Integrated Ocean Drilling Program (IODP) Expedition 338 were planned to extend and case riser Hole C0002F, begun during IODP Expedition 326 in 2010, from 856 to 3600 meters below seafloor ...
Jurado Rodriguez, Maria, Kameo, Koji, Masuda, Harue, Wu, Hung-Yu, Phillips, Stephen, Strasser, Michael, Fabbri, Olivier, Milliken, Kitty, Webb, Susanna, Schleicher, Anja, Geersen, Jacob, Sanada, Yoshinori, Hayashi, Hiroki, Saffer, Demian, Moe, Kyaw Thu, Hüpers, Andre, Kanamatsu, Toshiya, Shan, Yehua, Kanagawa, Kyuichi, Rashid, Harunur, Toczko, Sean, Tudge, Joanne, Maeda, Lena, Takeshita, Toru, Olcott, Katelyn, Heirman, Katrien, Esteban, Lionel, Motoyama, Isao, Underwood, Michael, Ramirez, Sebastian, Kido, Yukari, Wilson, Dean, Kitajima, Hiroko, Sawyer, Derek, Yamaguchi, Asuka, Song, Insun, Hammerschmidt, Sebastian, Oohashi, Kiyokazu, Toki, Tomohiro, Dugan, Brandon, Moore, Gregory, Mishra, Ravi, Skarbek, Robert   +42 more
core   +1 more source