Results 31 to 40 of about 762,465 (298)

Performance evaluation of temperature-resistant nano-surfactants [PDF]

open access: yesE3S Web of Conferences, 2022
Surfactant flooding is a common technique in tertiary oil recovery. However, due to the high temperature of some reservoirs and the strong heterogeneity caused by their own geological conditions, the use of common surfactants in high-temperature ...
Wang Qunyi   +6 more
doaj   +1 more source

Determination of the Minimum Miscible Pressure of the Supercritical Carbon Dioxide and the Formation Oil System by the Pendant Drop Method [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2022
Carbon dioxide miscible displacement plays an important role in the field of miscible displacement for enhanced oil recovery. However, there is a very important relationship between the formation of miscible displacement and the minimum miscible pressure.
Yuejun Zhao   +4 more
doaj   +1 more source

Effect of Coconut Protein and Xanthan Gum, Soybean Polysaccharide and Gelatin Interactions in Oil-Water Interface

open access: yesMolecules, 2022
We report on our study of the interactions between coconut protein extracted from coconut meat and three hydrocolloids (gelatin, xanthan gum, and soybean polysaccharide) and their interfacial adsorption and emulsification properties.
Yi Yang, Dong Xiang
doaj   +1 more source

Stability Evaluation Indexes of Emulsified Asphalt for Cold Regeneration [PDF]

open access: yesZhengzhou Daxue xuebao. Gongxue ban, 2021
Aiming at the stability of emulsified asphalt for cold regeneration, laboratory tests were carried out on the types and dosage of emulsifier, particle size, Zeta potential and interfacial tension of SBR modified emulsified asphalt, and the index ...
WANG Decai   +3 more
doaj   +1 more source

Fundamentals of interfacial wettability in ironmaking and steelmaking

open access: yes工程科学学报, 2018
There are various interfacial phenomenona in ironmaking and steelmaking, including slag foaming, nucleation, aggregation, removal of inclusions in steel, and refractory corrosion.
CHENG Li-mei, ZHANG Li-feng, SHEN Ping
doaj   +1 more source

The Effect of a Novel Surface Modified Nanoparticles on Wettability Alteration and Enhanced Oil Recovery [PDF]

open access: yesChemical Process Design
Recently, nano-fluids (N-fluids) have emerged as cost-effective and efficient materials for enhanced oil recovery (EOR). In this context, N-fluids have shown significant potential in altering the wettability of carbonate rocks and reducing the ...
Ehsan Jafarbeigi
doaj   +1 more source

Synthesis and Performance Evaluation of a Betaine Surfactant [PDF]

open access: yesE3S Web of Conferences, 2020
Using sodium bisulfite and epichlorohydrin as raw materials, the ring-opening reaction is carried out under the action of acatalyst to produce sodium 3-chloro-2-hydroxypropane sulfonate, followed by dodecyl tertiary amine, isopropanol, sodium hydroxide ...
Zhang Rongjun   +5 more
doaj   +1 more source

Effect of Contact Time and Gas Component on Interfacial Tension of CO2/Crude Oil System by Pendant Drop Method

open access: yesJournal of Spectroscopy, 2015
Pendant drop method has been used to measure the equilibrium interfacial tension and dynamic interfacial tension of CO2/crude oil system under the simulated-formation condition, in which the temperature is 355.65 K and pressure ranges from 0 MPa to 30 ...
Xin Wang   +6 more
doaj   +1 more source

A novel surface active polymer oil displacement agent

open access: yesPetroleum Exploration and Development, 2012
Based on the relationship between the molecule structure of monomers and their performance, two types of polymerizable monomers with low oil/water interfacial tension have been synthesized, which coplymerizes acrylamide to synthesize a novel polymer oil ...
Pingde LIU   +3 more
doaj   +1 more source

Seed-like Hollow Nanoparticles by a Dynamic Interfacial-Tension-Controlled Polar Growth Strategy

open access: yes, 2023
Hollow nanomaterials have attracted significant interest. However, developing an effective growth mechanism for synthesizing seed-like hollow nanoparticles (SHNPs) with tailored structures still remains challenging.
Jiajia Zhao (537913)   +13 more
core   +1 more source

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