Results 91 to 100 of about 21,307 (276)

Enhancing asphaltene precipitation modeling by cubic-PR solid model using thermodynamic correlations and averaging techniques

open access: yesPetroleum Science, 2019
Cubic equation-of-state solid models are one of the most widely used models to predict asphaltene precipitation behavior. Thermodynamic parameters are needed to model precipitation under different pressures and temperatures and are usually obtained ...
Aktham E. Shoukry   +2 more
doaj   +1 more source

Hydrocarbon Potential of the Pabdeh Formation: Geochemical Insights Into Immature Source Rock Capabilities

open access: yesEnergy Science &Engineering, Volume 13, Issue 6, Page 3371-3385, June 2025.
ABSTRACT The Pabdeh Formation (Paleocene‐Oligocene) is one of the hydrocarbon‐generating formations in the Zagros sedimentary basin. In this study, to evaluate its hydrocarbon potential and the distribution of organic matter maturity, samples were collected from oil fields in southwestern Iran and the Dezful embayment and analyzed geochemically.
Yingchun Liu   +3 more
wiley   +1 more source

Modelling of Diesel fuel properties through its surrogates using Perturbed-Chain, Statistical Associating Fluid Theory [PDF]

open access: yes, 2018
The Perturbed-Chain, Statistical Associating Fluid Theory equation of state is utilised to model the effect of pressure and temperature on the density, volatility and viscosity of four Diesel surrogates; these calculated properties are then compared to ...
Gavaises, M.   +4 more
core   +1 more source

An improved modeling approach for asphaltene deposition in oil wells including particles size distribution

open access: yesOil & Gas Science and Technology, 2018
There are several approaches to model Asphaltene deposition process in the wellbore. There are different assumptions to simplify the problem in the previous investigations for specific conditions, limiting the prediction range of the models. In this work,
Eyni Leila   +3 more
doaj   +1 more source

Enhanced solvation force extrapolation for speeding up molecular dynamics simulations of complex biochemical liquids [PDF]

open access: yes, 2019
We propose an enhanced approach to the extrapolation of mean potential forces acting on atoms of solute macromolecules due to their interactions with solvent atoms in complex biochemical liquids. It improves and extends previous extrapolation schemes by including additionally new techniques such as an exponential scaling transformation of coordinate ...
arxiv   +1 more source

Chemical enhanced oil recovery from shale‐rich tight carbonate reservoirs using 2‐butoxyethanol as a mutual solvent and diluted seawater

open access: yesThe Canadian Journal of Chemical Engineering, Volume 103, Issue 5, Page 2119-2135, May 2025.
This graphical abstract shows the experiments conducted, including interfacial tension, contact angle, oil swelling and production under imbibition, along with graphs presenting the results. Abstract Oil production from tight reservoirs due to their very low permeability and high capillary pressure requires complex operations and materials, so that ...
Iman Nowrouzi   +2 more
wiley   +1 more source

Pyrolysis of asphaltenes and biomarkers for the fingerprinting of the _Amoco Cadiz_ oil spill after 23 years [PDF]

open access: yes, 2009
The chemical composition of the petroleum products accidently or deliberately released in the environment varies considerably with time under the action of biological (biodegradation) and physico-chemical (photo-oxidation) processes.
Fré, Jean Oudot
core   +1 more source

Problematic Stabilizing Films in Petroleum Emulsions: Shear Rheological Response of Viscoelastic Asphaltene Films and the Effect on Drop Coalescence [PDF]

open access: yes, 2014
Adsorption of asphaltenes at the water-oil interface contributes to the stability of petroleum emulsions by forming a networked film that can hinder drop-drop coalescence.
Alvarez G.   +44 more
core   +1 more source

Hierarchically Engineered Triple‐Defensive Antifouling Coating with Well‐Regulated Structure for Enhanced Wastewater Treatment

open access: yesAdvanced Functional Materials, Volume 35, Issue 16, April 18, 2025.
Inspired by shark skin, which has a hydrophilic “denticle layer” and a low surface energy “mucus layer,” a triple‐defense antifouling coating is developed. This coating features a robust hydrophilic catalytic nanoparticle layer overlaid with dispersed hydrophobic perfluoro‐silane domains, optimizing fouling resistance, release, and degradation for ...
Wenshuai Yang   +8 more
wiley   +1 more source

Molecular Components and Molecular Modelling for Asphalt: A Review

open access: yesAdvanced Physics Research, Volume 4, Issue 4, April 2025.
Various techniques are developed for the separation and characterization of molecular components for asphalt materials, which serve as the foundations for the molecular modeling, aiming to correlate the physical properties with their molecular compositions.
Zhijin Wang   +4 more
wiley   +1 more source

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