Results 91 to 100 of about 633,289 (344)
Yankuang ceshiThe efficient development of shale oil and gas is crucial for China’s energy security. Shale exhibits characteristics such as well-developed bedding planes, strong heterogeneity, low porosity, and low permeability. Previous studies have demonstrated that
Yangbing LI +6 more
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Open Chemistry, 2019 Traditional water-in-oil drilling fluids are limited by their shear thinning behavior. In this article, we propose the synthesis of a thermal resistant quaternary ammonium salt gemini surfactant DQGE-I. This surfactant was synthesized using monomers such
Liu Yonggui +4 more
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Multilateral drilling & completion technology based on Solid Expandable Tubular fixing system
Petroleum Exploration and Development, 2009 A new multilateral technology is developed based on the Solid Expandable Tubular (SET) fixing system. By this new technology, every kinds of tool in drilling, completion, well repair, and oil-formation improvement are located and operated according to ...
Zhang Yanping +3 more
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Quantifying the yield stress of bentonite muds mixed with other clays during drilling operations
, 2022 Alexis Bougouin +2 more
openalex +2 more sources
Advanced Functional Materials, EarlyView.Multicolor optoelectronic synapses are realized by vertically integrating solution‐processed MoS2 thin‐film and SWCNT. The electronically disconnected but interactive MoS2 enables photon‐modulated remote doping, producing a bi‐directional photoresponse.
Jihyun Kim +8 more
wiley +1 more source
Synthesis and application of polyacrylate reverse demulsifier with high stability
Gongye shui chuliPolyacrylate reverse demulsifier CR-3 was synthesized with methyl methacrylate, ethyl acrylate, and styrene as monomers by aqueous polymerization method. The effects of emulsifier type, emulsifier dosage, and effective content of CR-3 on the stability of
GUO Xiaoyi +5 more
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Highly Selective Toward HER or CO2RR by Regulating Cu Single and Dual Atoms on g‐C3N4
Advanced Functional Materials, EarlyView.This systematic study provides insights into the design of electrocatalysts for hydrogen evolution reaction (HER) and carbon dioxide reduction (CO2RR). It serves as a useful guide for tuning catalyst architecture toward efficient multifunctional performance by varying synthetic parameters, demonstrating the impact of copper (Cu) species ranging from ...
Wan‐Ting Chen +9 more
wiley +1 more source
Thermal Evaluation of Bone Drilling: Assessing Drill Bits and Sequential Drilling
BioengineeringSequential drilling is a common practice in dental implant surgery aimed at minimizing thermal damage to bone. This study evaluates the thermal effects of sequential drilling and assesses modifications to drilling protocols to manage heat generation.
Sihana Rugova, Marcus Abboud
openaire +3 more sources
Improving rock classification in terms of explosivity [PDF]
, 2019 Purpose. To improve rock classification in terms of explosivity relying upon the detailed analysis of characteristics of rating classifications available in the Russian Federation and in the world. Methods.
Kirsanov, A +5 more
core +1 more source
Covalent Organic Frameworks for Water Sorption: The Importance of Framework Physical Stability
Advanced Functional Materials, EarlyView.This study explores the water‐vapor stability of 2D covalent organic frameworks (COFs) with varying pore sizes. Results reveal microporous COFs demonstrate superior stability compared to mesoporous ones, despite lower water uptake. Mesoporous keto‐enamine‐linked COFs show enhanced stability due to intralayer hydrogen bonds, confirmed by simulations and
Wei Zhao +13 more
wiley +1 more source