Results 71 to 80 of about 4,972 (256)
Simulation of mud invasion and analysis of resistivity profile in sandstone formation module
Petroleum Exploration and Development, 2017 To investigate the dynamic invasion process of drilling fluid, the parameters of the physical model in laboratory were optimized based on numerical simulation and a physical simulation system for mud invasion in undisturbed zone was developed.
Yiren FAN +4 more
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Electrolyte Design for Fast‐Charging Lithium‐Based Batteries
Advanced Materials, EarlyView.A decade of progress in fast‐charging electrolytes for lithium batteries is reviewed. Electrolyte design strategies spanning solvents, salts, additives, and advanced systems, such as localized high‐concentration electrolytes (LHCEs), are summarized. Advanced diagnostic tools for lithium plating and interphase chemistry are discussed, with perspectives ...
Chen Liu, Zehao Cui, Arumugam Manthiram
wiley +1 more source
External Flow Field and Rock Erosion Characteristics of a Coaxial Straight‐Swirling Mixed Jet
Energy Science & EngineeringRadial jet drilling is an effective technology for mining coal‐bed methane. A self‐propelled jet bit greatly affects drilling efficiency. Simulations and laboratory experiments using a coaxial straight‐swirling mixed jet (CSMJ) were performed to study ...
Peng Du, Zhao Peng
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Advanced Materials Interfaces, EarlyView.Ultrathin MXene/EMF composite foams achieve a specific shielding efficiency of 749.6 dB.dB·cm3$\mathrm{dB}\cdot {\mathrm{cm}}^{3}$/g, while the silver‐enhanced MXene/Ag/EMF reaches 81.4 dB shielding effectiveness at just 1.0 mm thickness. Both composites exhibit rapid Joule heating, retain stability up to 250∘C$^\circ{\rm C}$, and withstand 1000 ...
Abdullah A. Mahmood +7 more
wiley +1 more source
Radial Head Changes in Osteochondritis Dissecans of the Humeral Capitellum
Orthopaedic Journal of Sports Medicine, 2018 Background: Osteochondritis dissecans (OCD) of the elbow has almost exclusively been described in the humeral capitellum, with only a small number of reports describing secondary osteochondral changes in the radial head.
Mark Wu BS +3 more
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Advanced Materials Interfaces, EarlyView.Nonwoven textile architectures are emerging as versatile platforms for next‐generation energy storage, demonstrating how tailored materials and fabrication strategies enhance ion transport, conductivity, flexibility, and scalability for high‐performance sustainable devices.
Tarikul Islam +6 more
wiley +1 more source
EFFECT OF DRILLING OPERATION DYNAMICS ON DEEP HOLE ACCURACY
Advanced Engineering Research, 2010 Radial non-linear dynamic performance of drilling operation on various stages is considered. Effect of some factors on non-linear dynamic performance is analysed.
Vitaly S. BYKADOR
doaj
Numerical simulation study on impact factors to dynamic filtration loss
Journal of Petroleum Exploration and Production TechnologyDuring drilling operations, naturally, fractured formations are prone to show serious mud losses, which hinder drilling and increase nonproductive time and costs.
Cuilong Kong +4 more
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Shiyou jixie, 2022 Radial horizontal well technology, which is based on hydraulic jet radial drilling, can increase the drainage capacity of low permeability reservoirs and unconventional oil and gas wells, and self-propelled multi-nozzle jet bit is the core component of ...
Zhang Tao +5 more
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Записки Горного института, 2019 With an increase in the share of old and low-yield wells and for the efficient exploitation of fields, it is necessary to include low-capacity formations into production.
I. A. Lyagov +4 more
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