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

Results of the continuation of a review series covering the period 2009 to 2012 on high-
pressure phase equilibria are given, including a compilation of systems investigated, recent …

Injecting low salinity brines is regarded as an enhanced oil recovery (EOR) process through
IFT reduction. However, the exact mechanism behind this process is an unsettled and …

The research on the flowability of waxy oil has spanned more than a century and is still
attracting much attention. How to improve the flowability of waxy oil to ensure safe and …

Interfacial tension (IFT) as one of the main properties for efficient CO2 flooding planning in
oil reservoirs depends strongly on pressure, temperature, and composition of the reservoir …

Many investigations have been carried out to provide a good understanding of the colloidal
state of asphaltenes in appropriate solvents such as toluene or natural medium. Despite …

A number of difficulties may be encountered in the final stages of oil field exploitation,
including the formation of asphalt–resin–paraffin deposits (ARPDs). It is expedient to use …

Colloidal behavior of asphaltene in normal alkane-toluene mixture has been under research
over the past decades. However, the influence of asphaltene composition and its structure …

Precipitation of asphaltene leads to rigorous problems in petroleum industry such as:
wettability alterations, relative permeability reduction, blockage of the flow with additional …

Although the capability of using sulfate anion as a wettability modiffier is well established, no
systematic investigation on the effect of sulfate ions and natural surfactants in the crude oil …