Sulfonated Asphalt is a compound made from Sulfonating the Asphaltic material, synthetic and/or natural in order to make it solvable in water. The procedure contains special technology to be applied along with several chemical additives to change the nature of the asphalt for water solubility while preserving certain characteristics.
What is Sulfonated Asphalt?
Sulfonated asphalt is partly water soluble, party oil soluble and partly solvable in both water and oil providing a high emulsifying property which makes it suitable to emulsify with both fresh water and sea water along with the Oil, providing some unique characteristics to be applied in Drilling Fluids.
Sulfonated Asphalt is usually formed as a Blackish Brwon Powder and supplied in 50 pound sacks for application at the drilling sites. Considering the use of Synthetic bitumen as raw material, HSE regulations must be followed precisely for application of this drilling additive.
Benefit and features of using sulfonated asphalt:
It is compatible with all water based drilling muds (WBM)
Depressing the solid expansion of drilling chips
Controlling HTHP Flow
Helps maintain low shearing rate under HTHP
Controls high temperature water loss
Improves Filter Cake Quality and helps seal micro fractures
Prevents slides and falls of wellbore walls
improving lubricating properties of drilling mud
Sulfonated Asphalt does not require use of emulsifiers for corresponding mixing
Prevents Stuck Drill Pipe
Its specific solubility in water and oil ensures excellent chemical and physical bonding properties
Has Crack sealing effect
Inhibits dispersion of drilled solids
In case there is a use of Natural Bitumen instead of Oil Bitumen in the manufacturing of Sulfonated Asphalt, the product will be called commonly Sulfonated Gilsonite. Sulfonated Gilsonite has all the attributes of Sulfonated Asphalt along with an additional Environmental friendly feature which is caused by using a natural resource instead of a processed bitumen.
Most famous Sulfonated Gilsonite in the world is SOLTEX additive formulated by Chevron Company and enhanced over 50 years of application. Following Soltex, American Gilsonite company has also provided a Sulfonated Gilsonite to the market with similar properties, while both products are highly expensive.
More economic prices for Sulfonated Gilsonite can be obtained from Chinese factories actively using Iran Gilsonite for their formulation and improving the economics of their sulfonated asphalt products.
At Zista Gilsonite facility, we have proudly formulated our own Sulfonated Gilsonite in several grades to match same specifications of Soltex Additive for high quality market and also an economical formulation of Sulfonated Gilsonite to match Chinese/Indian supply. Having first hand local access to the main natural resources, provides Zista Gilsonite with a competitive edge impossible to reach by Non-Iranian suppliers.
For more information about Zista Sulfonated Gilsonite, please visit the related product page: