Results 51 to 60 of about 1,915 (207)

A Green Amphoteric Surfactant Derived From Rapeseed Oil for Enhanced Oil Recovery From Carbonate Acidic Oil Reservoirs

open access: yesJournal of Surfactants and Detergents, EarlyView.
The Green Amphoteric Surfactant Derived From Rapeseed Oil for Enhanced Oil Recovery From Carbonate Acidic Oil Reservoirs. ABSTRACT Surfactants with both positive and negative functional groups (amphoteric or zwitterionic) are particularly advantageous in acidic oil reservoirs because they remain stable under harsh chemical conditions, tolerate acidic ...
Iman Nowrouzi   +2 more
wiley   +1 more source

Prediction of the Gas Injection Effect on the Asphaltene Phase Envelope

open access: yesOil & Gas Science and Technology, 2015
Asphaltene instability may occur when pressure, temperature and compositional variations affect the reservoir oil. Permeability reduction, wettability alteration, and plugging of wells and flow lines are the consequences of this phenomenon. Therefore, it
Bahrami Peyman   +3 more
doaj   +1 more source

Terrestrial Analogs to Titan for Geophysical Research

open access: yesReviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract Saturn's moon Titan exhibits remarkable parallels to the Earth in many geophysical and geological processes not found elsewhere in the solar system at the present day. These include a nitrogen atmosphere with a condensible gas—methane—replacing the Earth's water, leading to an active meteorology with rainfall and surface manifestations ...
Conor A. Nixon   +21 more
wiley   +1 more source

Triblock Polymer Engineering Enables Hydration‐Rich, High‐Performance, Fouling‐Resistant Interfaces

open access: yesAdvanced Functional Materials, Volume 36, Issue 36, 4 May 2026.
A molecularly engineered triblock polymer (PHZ) rapidly reorganizes into a hydration‐rich interfacial layer on diverse surfaces, strongly suppressing hydrophobic attraction and fouling. The triblock polymer provides robust energy and steric barriers to oily foulants, enabling high‐performance antifouling at ultralow dosage.
Chenyu Qiao   +6 more
wiley   +1 more source

Nanoarchitectonics of Porous Carbons Templated by Inorganic Metal Oxides and Alkali Metal Salts for Energy and Environmental Applications

open access: yesAdvanced Science, Volume 13, Issue 30, 28 May 2026.
This review explores inorganic metal oxides and metal salt nanoparticles templated porous carbons, highlighting their synthesis, structural features, and performance in energy and environmental applications. It critically compares template types, porosity control, and functional outcomes across recent literature.
Gurwinder Singh   +8 more
wiley   +1 more source

Asphaltene Precipitation in Algerian Oilfields: Experimental Investigation and Field Mitigation

open access: yesChemical Engineering Transactions, 2014
This study addresses two aspects for mitigating the asphaltene precipitation and deposition problem in Algerian oilfields: experimental study and field solution to the deposition problem. In the experimental study and in order to differentiate cases with
M. Eutamene   +4 more
doaj   +1 more source

Supercritical water deasphalting and desulphurization of heavy fuel oil with comprehensive molecular‐level analysis and techno‐economic analysis

open access: yesThe Canadian Journal of Chemical Engineering, Volume 104, Issue 4, Page 1727-1742, April 2026.
Supercritical water deasphalting. Abstract The removal of sulphur from heavy fuel oil (HFO) is essential to address environmental concerns and comply with the stringent regulations imposed by the International Maritime Organization (IMO) in 2020. Previously, the acceptable limit for sulphur was 3.5 wt.%, but it was recently changed to 0.5 wt.%.
Biswajit Saha   +6 more
wiley   +1 more source

Critical Review on the Molecular Behavior of Surfactants at the Oil–Water Interface During Oil Displacement

open access: yesEnergy Science &Engineering, Volume 14, Issue 3, Page 1626-1662, March 2026.
This review systematically explores the molecular behavior of diverse surfactants (anionic, cationic, nonionic, amphoteric) at the oil–water interface through molecular dynamics simulations. It highlights their roles in reducing interfacial tension, altering interfacial structure, and enhancing oil recovery efficiency.
Zhaowei Hou   +10 more
wiley   +1 more source

Investigation on C02 Induced Asphaltene Precipitation Using Baronia Oil Samples [PDF]

open access: yes, 2009
Asphaltene precipitation is one of the serious problems during the secondary and tertiary oil recovery in light oil reservoirs using C02 injection. Baronia RV2 light oil sample has been chosen to study the possibility of asphaltene precipitation during
Alta'ee, Ali Fikret Mangi
core  

Bitumen Emulsion—Mineral Surface Interactions: An NMR Study on the Interface Layer Composition

open access: yesMagnetic Resonance in Chemistry, Volume 64, Issue 2, Page 170-178, February 2026.
We describe a 1H NMR approach to study the interface layer formed by a specified bitumen emulsion in the presence of non‐magnetic as well as magnetic minerals. This approach is based on the consecutive flushing off “bulky” components of the bitumen emulsion and the following extraction of the surface layer material, which can then be analyzed by NMR ...
Andrei Filippov   +2 more
wiley   +1 more source

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