Results 31 to 40 of about 10,595 (295)

Optimization of a bio-based drilling fluid from waste Dacryodes Edulis (local pear) for oil exploration

, 2023
This study focused on the development and optimization of a bio-based drilling fluid from local pear seed for oil exploration, which can help lessen the environmental impact of oil spills.
Effiom, Precious-Chibuzo Oliver, Precious-Chibuzo Oliver Effiom   +1 more
core   +1 more source

Experimental Optimization of High-Temperature-Resistant and Low Oil—Water Ratio High-Density Oil-Based Drilling Fluid

, 2023
Problems such as well loss and collapses in deep shale gas drilling are most often due to the development of cracks in the shale formation, resulting in significant leaks of drilling fluid, the sticking and burrowing of drilling tools, and other ...
Zhenzhen Shen, Xingying Yu, Mingwei Wang, Song Li, Heng Zhang, Chaoli Gao, Haotian Zhang   +6 more
core   +1 more source

Research on and Application of Near-Oil-Based Drilling Fluid System

Zuanjingye yu wanjingye
In recent years many studies have been conducted on near-oil-based drilling fluids to overcome the problems encountered in using oil-based drilling fluids such as high formulation cost and difficulties in addressing the oily cutting treatment problem ...
Xiqiang SI, Zhonghua WANG
doaj   +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  

Review of Thermally Activated Twisted Coiled Polymer Actuators: A Materials Science Perspective

Advanced Functional Materials, EarlyView.
Thermally activated twisted and coiled polymer actuators (TCPAs) combine lightweight design, large deformation, and scalable fabrication for soft robotic and wearable applications. This review connects polymer structure, processing history, helix geometry, and thermomechanical characterization to actuator performance, highlighting current challenges in
Nadja Schenk, Lukas Benecke, Chokri Cherif, Johannes Mersch   +3 more
wiley   +1 more source

On the Stability of Oil-Based Drilling Fluid: Effect of Oil-Water Ratio

, 2020
Drilling fluids are complex mixtures of natural and synthetic chemical compounds used to cool and lubricate the drill bit, clean the wellbore, carry drilled cuttings to the surface, control formation pressure, and improve the function of the drill string
Titus Ntow Ofei, Lund, Bjørnar, Itung Cheng, Sigbjørn Sangesland, Bjørnar Lund, Sangesland, Sigbjørn, Saasen, Arild, Arild Saasen, Ofei, Titus Ntow, Cheng, Itung   +9 more
core   +1 more source

Sustainable Electrochemical Synthesis of High‐Quality MXenes: Mechanistic Insights, Applications, Challenges, and Technological Prospects

Advanced Functional Materials, EarlyView.
Electrochemical etching provides an eco‐friendly alternative to hazardous HF methods for MXene production. This approach facilitates the selective isolation of the A‐layer from MAX phases with tunable surface terminations. Controlling voltage, electrolytes, temperature, and duration enables the optimal structural integrity. Nevertheless, existing scale
Jagdeep Singh, Madhusudhana M Devadiga, Santosh K. Tiwari, AS Dhaliwal, Gurpreet Singh Selopal   +4 more
wiley   +1 more source

Multidimensional Cellular Micro‐Compartments to Model Invasive Lobular Carcinoma Dormancy

Advanced Healthcare Materials, EarlyView.
Invasive lobular carcinoma (ILC) is an understudied subtype of breast cancer that is susceptible to late recurrences. In this study, micro‐compartmentalization techniques spanning multiple dimensions, including 2D, pseudo‐3D, and 3D, are integrated to uncover the mechanisms underlying ILC dormancy, revealing the central role of p27Kip1.
Xilal Y. Rima, Sarmila Majumder, Divya S. Patel, Chunyu Hu, Hong Li, Xin Huang, Kim Truc Nguyen, Jacob Doon‐Ralls, Chiranth K. Nagaraj, Mangesh D. Hade, Setty M. Magaña, Eswar Shankar, Xiaoli Zhang, Daniel G. Stover, Bhuvaneswari Ramaswamy, Eduardo Reátegui   +15 more
wiley   +1 more source

Nanoparticle-based drilling fluids as promising solutions to enhance drilling performance in Egyptian oil and gas fields [PDF]

International Journal of Industry and Sustainable Development, 2020
Over the years, the discovery of petroleum in various regions of the world has led to the development of different techniques and equipment to enhance and optimize the drilling and production operations in this vital industry.
Abdel Sattar Dahab, Omar Mahmoud, Ahmed Mady   +2 more
doaj   +1 more source

Microgel‐Based 3D Bioprinting: A Convergent Strategy Integrating Material Design, Jamming Dynamics, and Biological Function

Advanced Healthcare Materials, EarlyView.
Microgel‐based 3D printed constructs represent a compelling and versatile innovation for engineering architecturally complex, dynamically remodelable, and biocompatible structures with high structural fidelity and bioactivity. By integrating material design, biofabrication, and biological function, these systems enable the development of adaptive ...
Elena Ghighină, Andreea Ioana Dinu, Jana Ghițman   +2 more
wiley   +1 more source