Results 71 to 80 of about 23,014 (223)

Quantitation and organic geochemical characterization of petroleum-like materials found on an undisturbed beach of the Padre Island National Seashore [PDF]

open access: yes, 1980
On June 3, 1979 the IXTOC I well in the Bay of Campeche 'blew out' with the subsequent release of 3 to 4 million barrels of oil. A major portion of that oil is known to have escaped recovery or was deliberately dispersed into the environment.
Scalan, Richard S., Winters, J. Kenneth
core   +1 more source

Prebiotic Effects of Lycium barbarum Polysaccharides on Gut Microbiota and Short‐Chain Fatty Acids Production in Wilson's Disease: An In Vitro Fermentation Study

open access: yesFood Science &Nutrition, Volume 14, Issue 4, April 2026.
Schematic overview of the experimental workflow investigating the effects of LBPs on gut microbiota. ABSTRACT Wilson's disease (WD) is a rare autosomal recessive disorder characterized by impaired copper metabolism and progressive multi‐organ damage. Emerging evidence suggests that gut microbiota dysbiosis and reduced microbial fermentation capacity ...
Shuzhen Fang   +6 more
wiley   +1 more source

Geochemical and Seismic Constraints on the Role of Mud Diapirs in Petroleum Migration and Accumulation in the Recôncavo Basin, NE Brazil

open access: yesJournal of Petroleum Geology, Volume 49, Issue 2, Page 433-447, April 2026.
ABSTRACT In the Recôncavo Basin, Northeast of Brazil, mud diapirs have been reported for decades, but their role within the basin's petroleum system remains poorly constrained. Here, we combine 2D seismic interpretation, field observations, and organic geochemical analyses of rocks and oil seeps to investigate the relationship between diapirism and ...
Cora Mattos   +3 more
wiley   +1 more source

Synthesis of Coal Tar‐Based Hypercrosslinked Polymers via Friedel‐Crafts Alkylation: An Efficient Way to Access Carbon Electrode Material for Supercapacitors

open access: yesENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 2, March 2026.
Liquid coal tar (CT) is synthesized into hypercrosslinked polymers (HCPs) via the Friedel–Crafts alkylation, followed by oxidation‐carbonization to form disordered microporous carbon. The resulting CF2CT exhibits a high three‐electrode specific capacitance of 342 F g−1 at 1 A g−1, and the assembled symmetric supercapacitor illuminates a light sign ...
Zhichao Ren   +6 more
wiley   +1 more source

Effects of hydrophobic CaO and SiO2 nanoparticles on Asphaltene Precipitation Envelope (APE): an experimental and modeling approach

open access: yesOil & Gas Science and Technology, 2018
An experimental and modeling approach was developed in this research to investigate the effects of CO2, new synthesized CaO and commercial SiO2 nanoparticle concentrations on the Asphaltene Precipitation Envelope (APE).
Ahmadi Yaser, Aminshahidy Babak
doaj   +1 more source

Numerical Validation of Asphaltene Precipitation and Deposition during CO2 miscible flooding

open access: yesPetroleum Research, 2020
Asphaltene precipitation, flocculation, and deposition can significantly reduce oil production by impacting wellbores, flowlines, and more importantly, formations’ pore space around the well.
Fahad I. Syed   +3 more
doaj   +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

Three Dimensional Measurements of Asphaltene Deposition in a Transparent Micro-Channel [PDF]

open access: yes, 2016
This study describes a novel experimental approach to directly measure the thicknesses of asphaltene deposits in micro-channels. The thickness of the asphaltene deposit is estimated using a visualization technique based on 3D digital microscopy.
Biswal, S. L.   +7 more
core   +1 more source

Evaluating the Limitations of One‐Dimensional High‐Temperature Gas Chromatography ‐ FID for Wax Solution Analysis: A Systematic Study

open access: yesJournal of Separation Science, Volume 49, Issue 3, March 2026.
ABSTRACT Wax deposition in petroleum systems is intrinsically connected with paraffin wax composition, yet their quantitative characterization by one‐dimensional high‐temperature gas chromatography with flame ionization detection (HTGC–FID), as prescribed by ASTM D5442, remains challenging.
Fernando B. Okasaki   +3 more
wiley   +1 more source

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