Asphaltene deposition in the reservoirs, tubbing, and surface facilities causes serious flow
assurance problems with significant economic implications. Asphaltene flow assurance …

Asphaltenes, complex aromatic compounds from various carbonaceous sources, could be
obtained by solvent dissolution, filtration and adsorption. It was difficult to clarify the …

The Yen–Mullins model, also known as the modified Yen model, specifies the predominant
molecular and colloidal structure of asphaltenes in crude oils and laboratory solvents and …

Asphaltene structure is one of the most controversial topics in petroleum chemistry. The
controversy is centered on the organization of aromatic cores within asphaltene molecules …

Understanding organic matter properties in terms of maturity and production potential are
crucial for the initial assessment of unconventional plays. This is important since the amount …

Many studies have indicated that asphaltenes have two hierarchical nanocolloidal species,
the nanoaggregate and the cluster of nanoaggregates. These two species, along with the …

Asphaltenes, and their related issues, have been the focus of many literature investigations.
However, in-depth analysis of asphaltenes structure and its relation to asphaltenes stability …

Asphaltenes comprise the heaviest and least understood fraction of crude petroleum. The
asphaltenes are a diverse and complex mixture of organic and organometallic molecules in …

In this study, a heavy crude oil sample was separated on the basis of solubility and polarity,
resulting in saturates, aromatics, resins, and asphaltenes (SARA) fractions. The fractions …

Unbiased analysis of asphaltene molecules by mass spectrometry requires that the three
fundamental steps in mass spectrometry-volatilization, ionization, and mass analysis-are …