The formation of organic sediments, especially asphaltene in reservoirs, wells and
equipment, has a harmful effect on the oil production economy, which reduces oil production …

High polar asphaltenes are easy to precipitate and deposit in transportation pipelines and
subsequent processing. Adding chemical polymer inhibitors is an effective method to inhibit …

Asphaltene precipitation kinetics were investigated for four crude oils with different
asphaltene contents, each diluted with n-heptane at room conditions. The yields of …

One of the important challenges of the oil industry is the formation of asphaltene deposits
and emulsions, which cause many operational and economic problems. Asphaltenes are …

A review of the current state of research in the field of oil rheology is presented as the basis
for quantitative characterization of oil flow in the pipeline system. Based on recent …

Preventing asphaltene aggregation is one of the most severe technical challenges facing
the oil industry in all stages, from extraction to transportation and refining. Alkylphenols are …

Time-resolved size and structure measurements of asphaltenes while in the process of
precipitating were monitored for the first time using ultra-small-angle X-ray scattering. The …

Asphaltene-related flow assurance problems are prevalent in oil production processes and
are at the heart of issues such as the plugging of pipelines, the damage of rock formations …

Any change in the crude oil system equilibrium causes asphaltene precipitation,
aggregation, and finally deposition on rock or pipe surfaces. Treatment cost and production …

Thermal treatment is a promising technique for treating petroleum sludge (PS). However,
asphaltenes as a recalcitrant fraction of PS induce strong bounding between petroleum and …