Results 61 to 70 of about 21,307 (276)

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

Modeling and Scaling of the Viscosity of Suspensions of Asphaltene Nanoaggregates

open access: yesEnergies, 2017
The scaling and modeling of the viscosity of suspensions of asphaltene nanoaggregates is carried out successfully taking into consideration the solvation and clustering of nanoaggragates, and the jamming of the suspension at the glass transition volume ...
Rajinder Pal
doaj   +1 more source

Crude oil viscosity reduction using TiO2, MgO, and Al2O3 nanoparticles

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Summary of the laboratory procedures, viscosity test conditions, obtained results, and viscosity trends based on the investigated parameters. Abstract The viscosity of crude oil plays a crucial role in enhancing oil recovery and flow efficiency within well columns and pipelines.
Iman Nowrouzi   +2 more
wiley   +1 more source

Probing Mechanical Properties of Water-Crude Oil Interfaces and Colloidal Interactions of Petroleum Emulsions using Atomic Force Microscopy [PDF]

open access: yes, 2017
Atomic force microscopy (AFM) is frequently used to elucidate complex interactions in emulsion systems. However, comparing results obtained with “model” planar surfaces to curved emulsion interfaces often proves unreliable, because droplet curvature can ...
David Harbottle   +4 more
core   +2 more sources

Hydrophobically Modified Chitosan‐Based Polymers for Enhanced Oil Recovery

open access: yesCleanMat, EarlyView.
Conversion of biowaste (shrimp shells) into high value product for upstream applications. ABSTRACT The upstream petroleum industry significantly contributes to environmental pollution through the use of fossil‐derived chemicals. This study explores the potential of green alternatives by synthesizing and evaluating chitosan‐based polymers for enhanced ...
Alexandra Scerbacova   +2 more
wiley   +1 more source

Chemical characterization of liquefaction products of an inertinite enriched northern Alaska coals [PDF]

open access: yes, 1989
A Northern Alaskan coal rich in inertinites was further enriched by density gradient separations. The degree of condensation of the enriched coal was estimated to be low, mainly 3 ring.
Mayasandra, Venugopal
core  

A study of the combustion chemistry of petroleum and bio-fuel oil asphaltenes [PDF]

open access: yes, 2016
The combustion of heavy fuel oils such as Bunker C and vacuum residual oil (VRO) are widely used for industrial applications such as furnaces, power generation and for large marine engines. There is also the possible use of bio-oils derived from biomass.
Atiku, FA   +4 more
core   +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

Influence of asphaltene deposition on oil seepage characteristics

open access: yes地质科技通报, 2021
Asphaltene deposition not only damages reservoir physical properties, but also affects fluid saturation distribution and seepage characteristics.The oil-water, oil-gas and three-phase relative permeability curves with or without asphaltene deposition ...
Xinwen Li, Guowei Zhang
doaj   +1 more source

Dust evolution, a global view: I. Nano-particles, nascence, nitrogen and natural selection . . . joining the dots [PDF]

open access: yesRSOS published 2016, 2021
The role and importance of nano-particles for interstellar chemistry and beyond is explored within the framework of The Heterogeneous dust Evolution Model at the IaS (THEMIS), focussing on their active surface chemistry (nascence), the effects of nitrogen doping and the natural selection of interesting nano-particle sub-structures. Nano-particle driven
arxiv  

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