Results 41 to 50 of about 9,794,287 (242)

Experimental Study on Optimization of Gravel Packing Parameters for Sand Control in Unconsolidated Sandstone Reservoirs

Journal of Marine Science and Engineering
Offshore unconsolidated sandstone reservoirs suffer from severe sand production, which impairs wellbore stability and productivity. This study evaluates gravel packing in light-oil unconsolidated sandstone reservoirs in the Weizhou field.
Peng Du, Hairui Guo, Youkeren An, Yiqun Zhang   +3 more
doaj   +1 more source

High‐Entropy Ceramic‐Enhanced Deformable Triboelectric Nanogenerator for Noncontact Biomechanical and Raindrop Energy Harvesting

Advanced Materials, EarlyView.
A large‐area, deformable high‐entropy‐ceramic (HEC)‐doped triboelectric nanogenerator with a trilayer architecture is developed, consisting of an HEC‐doped triboelectric layer, a graphite‐like textile charge‐storage layer, and stretchable carbon black electrodes.
Shengyou Li, Wei‐Chen Peng, Syun‐Hong Chou, Zhi‐Xian Yan, Jiann‐Yeu Chen, Dun‐Jie Jhan, Wei‐Chun Yang, Shi‐Hong Chen, Yi‐Lin Huang, Cheng‐Hung Tsai, Ming‐Yen Lu, Heng‐Jui Liu, Cheolmin Park, Ying‐Chih Lai   +13 more
wiley   +1 more source

Effect of Slot Width and Density on Slotted Liner Performance in SAGD Operations

Energies, 2020
Sand production from a poorly consolidated reservoir could give rise to some severe problems during production. Holding the load bearing solids in place is the main goal of any sand control technique.
Yujia Guo, Alireza Nouri, Siavash Nejadi
doaj   +1 more source

Radiative Thermal Management for Extreme Environments: Mechanisms and Design Strategies

Advanced Materials, EarlyView.
In this review, we discuss the fundamental mechanisms of radiative cooling and solar heating, material and structural design strategies, hybrid approaches integrating additional heat transfer pathways, and durability‐oriented designs addressing environmental stresses.
Hyung Rae Kim, Haeseong Kim, Joo Hwan Ko, Gil Ju Lee, Dae‐Hyeong Kim, Young Min Song   +5 more
wiley   +1 more source

A Thermoreversible Gelation Pathway to Plant Cuticle‐Inspired Biopolymer Aerogel Monoliths Based on Network‐Spherulitic Crystal Assemblies

Advanced Materials, EarlyView.
To address functionality limitations in plant‐based and industrially compostable polymer aerogels, this work introduces bio‐inspired aerogels with broadened functionality. Inspired by functional plant tissues, lightweight biopolymer aerogels based on exclusively stereocomplex crystals are fabricated, featuring hierarchically macro‐/meso‐porous ...
Anthony V. Tuccitto, Zeineb Ben Rejeb, Rafaela Aguiar, Nello D. Sansone, Sumaiya Farzana, Isaac Ali, Jun Uk Lee, Daniel J. Davidson, Ailsa K. Edward, Chul B. Park, Patrick C. Lee   +10 more
wiley   +1 more source

Assessment of the influence of plant shape and porosity on the wind shadow area based on numerical simulation

International Soil and Water Conservation Research
We systematically investigated the responses of wind shadow area characteristics to variations in plant porosity and u∗/Uh (u∗ represents friction velocity and Uh represents wind speed at a height of 0.25 m) across five plant shapes using numerical ...
Xuyang Liu, Chunlai Zhang, Liqiang Kang, Xueyong Zou, Zhuoli Zhou   +4 more
doaj   +1 more source

Sand Control Productivity Prediction Model for Secondary Completion of Horizontal Wells in Offshore Oilfield

Shiyou jixie, 2022
There are many productivity prediction models for horizontal wells; however, these models generate some errors in the prediction, since they do not consider the sand control method for secondary completion. In this paper, based on the simulation with the
Lin Haichun, Wei Congda, Zou Xinbo, Meng Zhaolan, Wang Yao, Gao Zhiwei, Deng Fucheng   +6 more
doaj  

Seamless Mechanical Programming Through Hybrid Epoxy–Acrylate Printing for Soft–Rigid Robots

Advanced Materials, EarlyView.
Hybrid epoxy‐acrylate printing enables seamless fabrication of soft–rigid robotic systems with covalently integrated interfaces and functionally graded mechanics. Grayscale exposure expands the accessible material space, enabling spatially programmed actuation through patterned stiffness while revealing the mechanics and durability of continuously ...
David C. Bershadsky, Franz A. Stolpen, Zachariah A. Page, Lillian Chin   +3 more
wiley   +1 more source

Flexibility evaluation of psammophytes using Young’s modulus based on 3D numerical simulation

Frontiers in Environmental Science
Flexible psammophytes play an important role in controlling soil wind erosion and desertification, owing to their characteristics. Although flexibility of psammophytes has been considered in previous studies, the interaction between flexible psammophytes
Hongxu Xiang, Xiaoxu Wu, Rende Wang, Chunming Shi, Hui Fang, Xueyong Zou, Xueyong Zou, Zhiyi Guo, Jie Yin, Xingchen Liu, Xiaofan Yang   +10 more
doaj   +1 more source

Erosion Simulation Test of Gravel Pack Metal Mesh Screen Pipe

Shiyou jixie, 2021
In order to avoid the erosion damage of the metal mesh screen pipe by sand particles in water source well, the post-mixed abrasive jet erosion test device was used to carry out erosion test device installation and test scheme design of gravel pack screen
Zhou Huan, Pang Mingyue
doaj