High Acid soluble & effective clay swelling inhibition Sulphonated Asphalt is a sulfonated asphalt that is partially soluble in water and oil. It can be used in both water-based and oil-based fluids, where it functions as a shale stabilizer, cuttings dispersion inhibitor, and contributes to high-temperature fluid loss control. Soltex is stable against many drilling fluid contaminants, operates across a broad pH range, and is suitable for use up to 500°F. Sulphonated Asphalt helps form a thin yet tough filter cake, and the small particles can effectively plug micro-fractures. This star product has delivered extraordinary performance since the 1980s.
Applications/Functions
- Reduces HPHT fluid loss in both water-based and oil-based mud
- Stabilizes shales and prevents sloughing
Advantages
- Thermally stable up to 500°F
- Controlled water and oil solubility to achieve optimal chemical and physical performance
- Reacts with shales to prevent sloughing and swelling
- Significantly increases lubricity
- Readily disperses in water and oil fluids
- Extremely temperature stable – does not have the softening point typically associated with naturally occurring asphalt
- Minimal and easily distinguishable fluorescence
Typical Properties
- Appearance: Black powder
- Specific Gravity: 0.98
Recommended Treatment
- Typical range: 2-6 ppb
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