Results 61 to 70 of about 29,376,018 (272)

Productivity for Horizontal Wells in Low‐Permeability Reservoir with Oil/Water Two‐Phase Flow [PDF]

Mathematical Problems in Engineering, 2014
This paper presents a semianalytical steady‐state productivity of oil/water two‐phase flow in low‐permeability reservoirs with both top and bottom boundaries closed which takes the permeability stress‐sensitive and threshold pressure gradient into account. Using the similar approach as Joshi’s (1988), the three‐dimensional (3D) horizontal well problem
Yu-Long Zhao, Lie-Hui Zhang, Zhi-Xiong He, Bo-Ning Zhang   +3 more
openaire   +1 more source

Electrospun Wood‐Derived Biopolymers as Electrodes in Electrochemical Energy Storage Technologies

Advanced Functional Materials, EarlyView.
Electrospinning transforms wood‐derived cellulose and lignin into architecturally defined, binder‐free carbon electrodes with tuneable porosity and functionality. This review shows how fibre design enables decoupled charge and mass transport, enhancing performance across battery systems, while identifying key challenges in spinnability, scalability ...
Michael W. Thielke, Hattie R. Chisnall, Jesus Vazquez Chavez, Ana B. Jorge Sobrido   +3 more
wiley   +1 more source

Modeling of Two-Phase Flow in Rough-Walled Fracture Using Level Set Method

Geofluids, 2017
To describe accurately the flow characteristic of fracture scale displacements of immiscible fluids, an incompressible two-phase (crude oil and water) flow model incorporating interfacial forces and nonzero contact angles is developed.
Yunfeng Dai, Zhifang Zhou, Jin Lin, Jiangbo Han   +3 more
doaj   +1 more source

Chitin‐Derived Carbon‐Metal Functional Materials

Advanced Functional Materials, EarlyView.
Functional carbon materials are synthesized from combination of biopolymer (chitin) and iron precursors. The resultant material exhibits superior surface area and adsorptive properties compared to carbon materials synthesized directly from pure chitin.
Herry Fang, Chao Hsuan (Joseph) Sung, Haitao Yu, Ezra Sarmiento, Katarina Kotanchek, Ryan Christopher Lee, Michelle Chan, David Kisailus   +7 more
wiley   +1 more source

Oil Phase Velocity Measurement of Oil-Water Two-Phase Flow with Low Velocity and High Water Cut Using the Improved ORB and RANSAC Algorithm

Measurement Science Review, 2020
Velocity is an important parameter for fluid flow characteristics in profile logging. Particle tracking velocimetry (PTV) technology is often used to study the flow characteristics of oil wells with low flow velocity and high water cut, and the key to ...
Han Lianfu, Wang Haixia, Cong Yao, Liu Xingbin, Han Jian, Fu Changfeng   +5 more
doaj   +1 more source

Microscale Patterning of Ultrahigh‐Viscosity Metallic‐Polymer Composites via Embedded Droplet Writing

Advanced Functional Materials, EarlyView.
A hybrid additive manufacturing platform integrates direct droplet writing of metallic composite with VAT photopolymerization to fabricate architected soft magnetic composites. This approach enables microscale patterning of high‐viscosity materials for programmable actuators, adaptive fluidic devices, and switchable adhesives, offering tunable ...
Yeowon Yoon, Jian Ni, Sungmo Park, Yang Xu, Yong Chen   +4 more
wiley   +1 more source

Monitoring Gas Void Fraction In Two-Phase Flow With Acoustic Emission [PDF]

, 2010
The two-phase gas/liquid flow phenomenon can be encountered over a range of gas and liquid flow rates in the chemical engineering industry, particularly in oil and gas production transportation pipelines.
Addali, Abdulmajid
core   +3 more sources

Void Fraction Measurement of Oil–Gas–Water Three-Phase Flow Using Mutually Perpendicular Ultrasonic Sensor

Sensors, 2020
The complex flow structure and interfacial effect in oil−gas−water three-phase flow have made the void fraction measurement a challenging problem.
Weikai Ren, An Zhao, Ningde Jin
doaj   +1 more source

Effect of Crude Oil-Water Two-Phase Flow on Pump Performance

Engineering and Technology Journal, 2009
An experimental study of pump performance (i.e. head, discharge, power, etc.) was achieved by using a centrifugal pump with crude oil-water two-phase flow. The crude oil used was from Sherao oil field in Kirkuk (Iraq) with a density of 838 kg/m3, dynamic viscosity of 6.0 cP and surface tension of 0.027 N/m at a temperature of 25oC.
Banipal N. Yaqob, Ihsan F. Abbas
openaire   +2 more sources

ATP‐Mediated Bidirectional Communication Between Natural and Artificial Cells for Controlled Bioreactions

Advanced Functional Materials, EarlyView.
Establishment of bidirectional communication behavior between natural and artificial cells. The first type of communication from natural dendritic cells to artificial polymeric cells was achieved via ATP release after cell lysis. The released ATP was taken up via gated UV‐controlled permeability increase of the polymeric membrane for performing ...
Ilona Kalte, Tsvetomir Ivanov, Leonhard Seufert, Shoupeng Cao, Lucas Caire da Silva, Volker Mailänder, Katharina Landfester   +6 more
wiley   +1 more source