Results 101 to 110 of about 2,457,187 (381)

A new type of whole oil-based drilling fluid

Petroleum Exploration and Development, 2014
To meet the demand of ultra-deep well drilling and shale gas well drilling, organic clay and a oil-based filtrate reducer were developed and a whole oil-based drilling fluid formula was optimized.
Jiancheng LI, Peng YANG, Jian GUAN, Yande SUN, Xubing KUANG, Shasha CHEN   +5 more
doaj  

Статичні змішувачі в циркуляційних системах промивальної рідини бурових установок [PDF]

, 2018
The work of three static mixer designs in flushing fluid circulation systems of drilling rigs was studied taking into account the basic parameters of drilling mud.
Biletskyi, V. S., Kuznetsova, Yu. I., Mishchuk, Yu. S.   +2 more
core   +1 more source

Carbon Nanotube 3D Integrated Circuits: From Design to Applications

Advanced Functional Materials, EarlyView.
As Moore's law approaches its physical limits, carbon nanotube (CNT) 3D integrated circuits (ICs) emerge as a promising alternative due to the miniaturization, high mobility, and low power consumption. CNT 3D ICs in optoelectronics, memory, and monolithic ICs are reviewed while addressing challenges in fabrication, design, and integration.
Han‐Yang Liu, Yun Sun, Dong‐Ming Sun, Hui‐Ming Cheng   +3 more
wiley   +1 more source

Structured, Shaped, or Printed Single‐Atom Catalysts and Their Applications

Advanced Functional Materials, EarlyView.
This paper reviews the design and use of structured single‐atom catalysts, which integrate porous architectures with the exceptional reactivity of isolated catalytic sites. It explores fabrication strategies, advanced characterization methods, and support materials that enhance thermal stability, mechanical robustness, and operational efficiency of ...
Jiachengjun Luo, Hushan Chand, Rafael Luque, Alina M. Balu, Gianvito Vilé   +4 more
wiley   +1 more source

Polymer Drilling Fluid with Micron-Grade Cenosphere for Deep Coal Seam

Journal of Chemistry, 2015
Traditional shallow coal seam uses clean water, solid-free system, and foam system as drilling fluid, while they are not suitable for deep coal seam drilling due to mismatching density, insufficient bearing capacity, and poor reservoir protection effect.
Peng Xu, Han-qiao Xiong, Xiao-lin Pu, Ju-quan Liu, Xing Liu   +4 more
doaj   +1 more source

A REVIEW ON GLYCEROL-BASED DRILLING FLUIDS AND GLYCERINE AS A DRILLING FLUID ADDITIVE

Rudarsko-geološko-naftni zbornik
A significant increase of energy demands all over the world and production decline from available oil and gas reservoirs have led the industry to invest in major offshore petroleum resources. However, drilling operations in offshore environments are usually restricted by environmental constraints.
Ali Momeni, Seyyed Shahab Tabatabaee Moradi, Seyyed Alireza Tabatabaei-Nejad   +2 more
openaire   +2 more sources

Autonomous Control of Extrusion Bioprinting Using Convolutional Neural Networks

Advanced Functional Materials, EarlyView.
This work presents a novel computer vision system for high‐fidelity monitoring of extrusion‐based bioprinting and a correction system utilizing convolutional neural networks for error mitigation. This system has demonstrated high detection accuracy and extrusion correction abilities that advance the state of the art toward accelerated printing ...
Daniel Kelly, Vasileios Sergis, Laura Ventura i Blanco, Karl Mason, Andrew C. Daly   +4 more
wiley   +1 more source

Результати впровадження розроблених протизношувальних домішок до бурових розчинів різних типів при бурінні свердловин [PDF]

, 2007
Разработана методика добавления предварительно разработанных противоизносных добавок к буровым растворам. Проведенные исследования подтвердили справедливость и эффективность полученных регрессивных уравнений оптимизации содержания соответствующих ...
Дрогомирецький, Я. М., Овецький, С. О.   +1 more
core  

Enhancing the performance of Xanthan gum in water-based mud systems using an environmentally friendly biopolymer [PDF]

, 2020
Xanthan gum is commonly used in drilling fluids to provide viscosity, solid suspension, and fluid-loss control. However, it is sensitive to high temperatures and not tolerant of field contaminants. This paper presents an experimental study on the effects
Akpan, EU, Enyi, GC, Nasr, GG
core   +2 more sources

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source