Results 61 to 70 of about 1,345,286 (303)

Multiple Synergistic Drilling Fluid System Application in Aihu Oilfield

MATEC Web of Conferences, 2017
The unstable layer of Aihu oilfield is characterized by strong hydration dispersion and weak expansion. The theory of multiple synergistic wall stabilization was applied to improve synergistic efficiency of the drilling fluid.
Liu Yingbiao, Lu Zongyu, Dang Wenhui, Zhu Zhongxi   +3 more
doaj   +1 more source

Research on transmission of technology of downward information security for wellbore trajectory control

EURASIP Journal on Information Security, 2017
Information transmission is an important part of the wellbore trajectory automatic control system. Combined with the characteristics of the guided drilling system, drilling fluid pulse is selected as a tool for trajectory control.
Lin DeShu, Feng Ding
doaj   +1 more source

Analysis on the lateral vibration of drill string by mass effect of drilling fluid [PDF]

Mechanical Sciences, 2019
It is well known that the influence of the internal and external drilling fluid on the lateral vibration characteristics of drillstring cannot be ignored. In this paper, experiment apparatus for simulating drillstring vibration was established. Hammering
C. Yang, C. Yang, R. Wang, L. Han, Q. Xue   +4 more
doaj   +1 more source

Covalent Functionalization of 2D Semiconductors: A Roadmap to Advanced Electronic Devices

Advanced Functional Materials, EarlyView.
This Review presents recent advances in the covalent functionalization strategies for two‐dimensional semiconductors and their implementation in modern technologies. Layered materials are modified through diverse molecular chemistries (e.g., thiols, diazonium salts, alkyl halides, and electron‐deficient species) to tailor their surface properties ...
Ramiro Quirós‐Ovies, Bin Han, Paolo Samorì   +2 more
wiley   +1 more source

Proceedings of the Integrated Ocean Drilling Program 301: Juan de Fuca Hydrogeology

, 2005
<p>Integrated Ocean Drilling Program (IODP) Expedition 301 to the eastern flank of the Juan de Fuca Ridge was the first part of a multidisciplinary program designed to evaluate the formation-scale hydrogeologic properties within oceanic crust ...
Dumont, Marion, Lever, Mark A., Goto, Shusaku, Kiyokawa, Shoichi, Fisher, Andrew T., Nakagawa, Satoshi, Bartetzko, Anne C.M., Hulme, Samuel M., Tsuji, Takeshi, Engelen, Bert, Sager, William W., Sakaguchi, Masumi, Iturrino, Gerardo J., Hawkins, Lisa, Heuer, Verena, Noguchi, Takuroh, Coggon, Rosalind, Becker, Keir, Wheat, C. Geoffrey, Klaus, Adam, Hutnak, Michael, Steinsbu, Bjorn Olav, Nielsen, Mark Edward, Inagaki, Fumio, Urabe, Tetsuro   +24 more
core   +1 more source

Nano Borophene as a Programmable 2D Scaffold for Organized DNA Assembly and Long‐Range Energy Transfer

Advanced Functional Materials, EarlyView.
Borophene is introduced as a programmable 2D bio‐interface that organizes DNA through dual boron–sulfur and nucleobase interactions. This molecular architecture enables efficient long‐range nanosurface energy transfer, establishing new design principles for functional nano–bio interfaces and amplification‐free optical biosensing.
Teresa Aditya, Pranay Saha, John M. Sansalone, Shraddha Krishnakumar, Matthew Molinaro, André J. van der Vlies, Nada Maher, Adrienne Griffiths, Zakhro Zakirova, Ketan Dighe, Narayana R. Aluru, Dipanjan Pan   +11 more
wiley   +1 more source

Additively Manufactured Geometry‐Reconfigurable Soft Neural Probes With Monolithic Multifunctionality

Advanced Functional Materials, EarlyView.
A geometry‐reconfigured additive manufacturing strategy converts planar printed soft materials into soft compact neural probes with integrated hydrogel electrodes and microfluidic channels. The resulting NeuroMAP platform enables scalable multichannel recording, localized chemical delivery, stable in vivo electrophysiological recording, and reduced ...
Hyunjin Lee, Xinyi Wang, Sirui Li, Jihyang Park, Hyunseok Lee, Jianting Yao, Kedar Narayan, Yuqi Wang, Jiashu Ren, Yueqi Deng, Salahuddin Ahmed, Denver I. Greenawalt, Archana Pandiyan, Loganathan Veeramuthu, Chi‐Ching Kuo, Tao Zhou   +15 more
wiley   +1 more source

Wellbore Circulating Temperature Field Model for Ultra-High Density Oil-Based Drilling Fluid

Shiyou jixie, 2021
The existing bottomhole pressure models assume that the circulation temperature of drilling fluid is the formation temperature, which always leads to large errors in calculations.
Ruan Biao, Huang Hong, Xu Xinniu, Gan Renzhong, Zhang Wei, Yang Hu   +5 more
doaj  

Proceedings of the Integrated Ocean Drilling Program 334: Costa Rica Seismogenesis Project, Program A Stage 1 (CRISP-A1)

, 2012
<p>Integrated Ocean Drilling Program Expedition 334, also known as the Costa Rica Seismogenesis Project (CRISP), was designed to understand the processes that control nucleation and seismic rupture of large earthquakes at erosional subduction zones.
Vannucchi, Paola, Stipp, Michael, Uno, Masaoki, Malinverno, Alberto, Stroncik, Nicole A., Kutterolf, Steffen O., Ujiie, Kohtaro, Saito, Saneatsu, Harris, Robert N., Usui, Yoichi, Formolo, Michael J., McCay, Gillian A., Martino, Amanda J., Sak, Peter B., Ohkushi, Ken'ichi, Solomon, Evan A., Zhu, Junjiang, Tsutsumi, Akito, Vadakkeyakath, Yatheesh, Huftile, Gary, Conin, Marianne, Barckhausen, Udo, Torres, Marta E., Foley, Susan Murr, Zhao, Xixi, Yamamoto, Yuzuru, Nuzzo, Marianne, Arroyo, Ivonne G., Heuret, Arnauld, Kameda, Jun, Kim, Gil Young   +30 more
core   +1 more source

Hydrogels Augmented With Artificial Sweeteners can Inhibit Multidrug‐Resistant Acinetobacter baumannii Growth and Biofilm Formation While Demonstrating Safety in Pre‐Clinical Pilot Human Trials

Advanced Healthcare Materials, EarlyView.
Using PVA–borax hydrogels as carriers for off‐the‐shelf artificial sweeteners to fight multidrug‐resistant A. baumannii. These soft, biocompatible hydrogels rapidly reduce bacterial viability within multidrug‐resistant A. baumannii biofilms by more than 99% within one hour and sustain antimicrobial activity over time, while demonstrating safety in both
Jie Han, Mohamed Soliman, Bin Zhang, Dominika Krawiel, Ronan R. McCarthy   +4 more
wiley   +1 more source