Drilling Fluid
Reducing Torque and Drag with Asphaltic Additives
Torque and drag limit how far and how fast you can drill, especially in deviated and horizontal wells.…
Water-dispersible asphaltic shale stabilizer and mud conditioner for water-based drilling fluids.
Key benefits
- Stabilizes reactive shale
- Reduces down-hole water loss
- Furnishes boundary lubrication
- Reduces torque and drag
Product overview
Sulphonated asphalt is a chemically modified asphalt that is partly water-soluble. It coats and seals shale, reduces downhole water loss, furnishes boundary lubrication and reduces torque and drag. It is packed in printed 25 kg (50 lb) kraft bags with full health and safety information.
Applications
- Water-based muds
- KCl-polymer systems
- Shale sections and deviated wells
- Torque and drag reduction
Technical data
Data sheet
Sulphonated Asphalt
| Property | Typical value | Test method |
|---|---|---|
| Appearance | Black free-flowing powder | Visual |
| Water solubility | ≥ 60 % | Gravimetric |
| Oil solubility | ≥ 30 % | Gravimetric |
| Moisture, max | 8 % | Oven |
| pH (1 % solution) | 8 – 10 | pH meter |
| Sulphonate content | ≥ 10 % | Titration |
| Typical dosage | 2 – 6 lb/bbl | |
| Packing | 25 kg (50 lb ± 0.5) printed kraft bags; 1 MT jumbo bags. | |
Typical values. The final specification is confirmed in the COA of each shipment.
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