In this study, various water-soluble and oil-soluble demulsifiers were selected for separation
of water from crude oil emulsions and their productivity measured using the Bottle-test …

One major challenge often encountered during the production and transportation of crude oil
in petroleum industries is the formation of extremely stable emulsions. This problem is …

In petroleum science, asphaltenes are well-known as the most refractory fraction of crude oil
and remain infamous for problems in production, transportation, and refining processes …

In crude oil production and processing, asphaltene aggregation followed by precipitation is
a major problem for the oil industry as it causes deactivation of catalysts, blocking pipelines …

In many oil production sites water injection is used as a piston to push the crude out of the
well. As the age of the field progresses, the ratio of water to oil produced increases. Agitation …

Asphaltenes with complicated molecular structures consist of many aromatic portions, alkyl
chains, and different functional groups. Various methods can determine their average …

A continuous demanding in raw chemicals cost reduction and processing simplification
facilitates the exploration and development of new materials in current plastics industries. In …

The main purpose of this study is to elucidate the effect of catalyst on asphaltene molecular
structure during hydrocracking of C 5-isolated asphaltene. Remained asphaltene and coke …

Solid-state 1 H NMR spectroscopy under ultrafast magic angle spinning (60 kHz) is used for
the first time to investigate the solid phase aggregate structure of a petroleum asphaltene …

This paper investigates the influence of asphaltene's structural parameters on its solubility,
including aromatic sheet diameter and aromaticity. Aromatic sheet diameter (L a) was …