Paraffin, Scale, Corrosion Prevention & Removal Systems
WF-CPRSCorrosion Prevention and Removal System (WF-CPRS) is a complete series of tools used
for the prevention and removal of scale, paraffin, and asphaltene deposits as well as rust in oil and gas production and water systems. WF-CPRS is comprised of dissimilar metals which form a special catalyst to enable a change in electrostatic potential, and produce a polarization effect on the minerals, thereby suspending solids and inhibiting the formation of scales, paraffin, and corrosion.
The WF-CPRS represents a major breakthrough in production optimization. It reduces operating costs and stabilizes production without the introduction of chemicals into the product and flow lines.
The alloy composition of CPRS provides electrons to the crude in a catalytic manner to reduce electron deficiencies in the crude. This enables electrochemical changes to occur that:
- Inhibit scale and corrosion formation
- Dissolve existing scale and corrosion
- Increase the specific gravity of the crude
- Decrease gaseous content
- Breakdown and leach away excessive waxes.
- Prevention and removal of the build-up of Paraffin, Scale, and Corrosion
- Non-magnetic, non-electric, and no chemicals required - environmentally friendly
- Good for high pressure and temperature applications. Not affected by magnetic fields and other factors
- Reduces downtime
- Reduces chemical costs
- Reduces hot oil treatment
- Reduces bottom sludge settling in tanks and lines
- Increases equipment efficiency and life
- Easy installation and almost maintenance free
- Prevents buildup of new paraffin, scale and rust
- Removes existing paraffin, scale and rust on the surface of the equipment and flowlines
- Removes and prevents algae
- Prevents CO2, H2S gases from settling on metal pipes and prevents corrosion.
Nature of Crude Oil
Petroleum crude oil consists of four factions, namely oil constituents, resin, asphaltene and preasphaltene (i.e. carbene and carboid). The chemical and physical properties of crude oils depend significantly on the relative amounts of each faction and their properties. The asphaltenes usually contain more condensed aromatic compounds than do the resin and oil factions. The resins contain aromatic or naphthenic hydrocarbons and components of oil factions may have napthenic or paraffin structures. Asphaltenes and preasphaltenes in their natural state exist in micelle form, peptized with resin molecules.
How Paraffin builds up
The center of this micelle can be metal, clay, or water. The essential feature is that the polar groups (such as S-“negative” and/or N-“negative” and/or O “negative” containing groups) are concentrated towards the center. This often is termed oil external-water internal or water-in-oil emulsion. When crude oils flow into a wellbore, its pressure and temperature decreases. Paraffin and water then would be released from the water-in-oil emulsion, with the paraffin solidifying at the reduced temperature condition.
How the WF-CPR Systems Prevent Paraffin Buildup
As stated above, crude oils are made up of factions, which contain paraffin and water. When crude oil flows into a wellbore, pressure and temperature are reduced. As the oil/water solution cools, the paraffin changes to a solid form. The paraffin deposits obstruct the flow of crude oil. The WF-CPRS provides an electrochemical change, which stabilizes the water-in-oil emulsion structure and prevents paraffin being released from the micelle structure and forming solid states. This allows the solution to move smoothly and cleanly through the pipe without causing deposit problems.