Results 91 to 100 of about 2,457,187 (381)

Impact of the drilling fluid system on the effectiveness of a high pressure jetting assisted rotary drilling system

Heliyon, 2020
An enhanced drill bit combining high pressure fluid jetting with a conventional rotary drilling system incorporating a tailored drilling fluid was designed to improve drilling performance in hard crystalline rock.
Timon Echt, Thomas Stoxreiter, Johann Plank   +2 more
doaj  

SUBSTANTIATION OF MUD PREPARATION TECHNOLOGY [PDF]

, 2018
To study the advantages of hydrodynamic cavitation, to calculate the frequency of cavitation oscillations by the device parameters, to obtain a formula for determining the dispersion time of the material, and to study the flow of the drilling ...
KAMYSHATSKYI, Oleksandr, KHOMENKO, Volodymyr, KOZHEVNYKOV, Anatolii, NAUMENKO, Mykolai, PASHCHENKO, Oleksandr, RATOV, Boranbai   +5 more
core  

Sonochemical Functionalization of Glass

Advanced Functional Materials, EarlyView.
A new method for functionalizing glass using ultrasonication of aryl diazonium salts. Aryl radicals generated by ultrasounds react with glass, forming a stable, covalently bonded organic film. The functionalized glass adheres microorganisms such as microalgae, fungi, and bacteria, suggesting potential applications in enzyme production, filtration ...
Tiexin Li, Zane Datson, Sufia Hena, Steven Chang, Shane Werry, Leqi Zhao, Nasim Amiralian, Tejas Bhatelia, Francisco J. Lopez‐Ruiz, Melanie MacGregor, K. Swaminathan Iyer, Simone Ciampi, Muhammad J. A. Shiddiky, Nadim Darwish   +13 more
wiley   +1 more source

Frio pilot in CO2 sequestration in brine-bearing sandstones: The University of Texas at Austin, Bureau of Economic Geology, report to the Texas Commission on Environmental Quality to accompany a class V application for an experimental technology pilot injection well. [PDF]

, 2003
GEOSEQ project (LBNL, LLNL, ORNL), NETL, Schlumberger–Doll Research Center, Transpetco, Sandia TechnologiesJackson School of ...
Collins, Dan, Holtz, Mark H., Hovorka, Susan D., Knox, Paul R., Papadeas, Phil, Sakurai, Shinichi, Stehli, Donald   +6 more
core   +1 more source

Bi‐Directional Assembly of Boron Nitride µ‐Platelets by Micro‐Molding for Advanced Thermal Interface Materials

Advanced Functional Materials, EarlyView.
Bi‐directionally assembled BN µ‐platelets in micropatterns formed by a micro‐molding method for thermal interface materials are demonstrated. The BN µ‐platelets are vertically aligned selectively, while compressed regions without patterns accommodate horizontally assembled BN µ‐platelets. Through anisotropic orientation, high thermal conductivities for
Young Gil Kim, In‐Young Jung, Yujin Mun, Joo Hwan Shin, Sang Gil Lee, Gyan Raj Koirala, Taewoo Kang, Jehyung Ok, Hyesu Choi, Jiwon Kim, Youngkwang Shin, Seok Joon Kwon, Tae‐il Kim   +12 more
wiley   +1 more source

Experimental analysis of drilling fluid prepared by mixing iron (III) oxide nanoparticles with a KCl–Glycol–PHPA polymer-based mud used in drilling operation

Journal of Petroleum Exploration and Production Technology, 2020
Loss of drilling fluid commonly known as mud loss is considered as one of the critical issues during the drilling operation as it can cause severe formation damage.
Nayem Ahmed, Md. Saiful Alam, M. Salam
semanticscholar   +1 more source

Scaling‐Up of Structural Superlubricity: Challenges and Opportunities

Advanced Functional Materials, EarlyView.
At increasing length‐scales, structural superlubricity (SSL) faces challenges from physical and chemical energy dissipation pathways. This study reviews recent experimental and theoretical progress on these challenges facing the scaling‐up of SSL, as well as perspectives on future directions for realizing and manipulating macroscale superlubricity ...
Penghua Ying, Xiang Gao, Diana Berman, Oded Hod, Michael Urbakh   +4 more
wiley   +1 more source

Calculation of safe drilling mud density window for shale formation by considering chemo-poro-mechanical coupling effect

Petroleum Exploration and Development, 2019
It is difficult to define safe drilling mud density window for shale sections. To solve this problem, the general Biot effective stress principle developed by Heidug and Wong was modified.
Shifeng ZHANG, Haige WANG, Zhengsong QIU, Wenke CAO, Hongchun HUANG, Zhixue CHEN   +5 more
doaj  

Seismic response to evolving injection at the Rotokawa geothermal field, New Zealand [PDF]

, 2020
Catalogs of microseismicity are routinely compiled at geothermal reservoirs and provide valuable insights into reservoir structure and fluid movement.
Hopp, C, Mroczek, S, Savage, M, Sewell, S, Townend, J   +4 more
core   +3 more sources

Multifunctional Hydroxyapatite Coated with Gallium Liquid Metal‐Based Silver Nanoparticles for Infection Prevention and Bone Regeneration

Advanced Functional Materials, EarlyView.
A multifunctional hydroxyapatite (HAp) coating integrated with silver‐gallium liquid metal nanoparticles (HAp‐Ag‐GaNPs) exhibits dual antibacterial and osteogenic properties. It effectively inhibits Gram‐positive and Gram‐negative bacteria, including resistant strains, while enhancing bone regeneration.
Ngoc Huu Nguyen, Pengfei Zhang, Fathima Shana Pattar Kadavan, Zhaoning Xu, Tien Thanh Nguyen, Wenshao Li, Manh Tuong Nguyen, Chung Kim Nguyen, Duy Quang Pham, Thi Giang Tuyet Pham, Andrew Hayles, Markos Negash Alemie, Jitraporn Vongsvivut, Vincent Chan, Stephen Peter Kidd, Yunpeng Zhao, Krasimir Vasilev, Vi Khanh Truong   +17 more
wiley   +1 more source