Asphaltene Deposits Tars or asphaltenes occur in many crudes as colloidally suspended solid particles. Precipitation takes place when the crude loses it ability to keep those particles dispersed. Many of the same factors affecting paraffin deposition also affect asphaltene deposition. Asphaltenes, however, usually occur at the bottom of the well adjacent to the producing formation wall. In some cases, the asphaltenes precipitate within the formation, creating a damage removal problem.
Rough surface provides an ideal site for paraffin deposition.
The two can be blended to achieve the necessary aromatic content. They are, however, soluble in our aromatic Paragon solvent. This solvent has proved effective in helping dissolve solid or semi-solid paraffin and asphaltene deposits that form or collect near the formation face and on tubular goods. In addition to wellbore cleaning capabilities, Paragon solvent can be squeezed into a formation to help remove asphaltenes precipitated within the reservoir. Results of tests using various field paraffins with different melting points.