| Water Dispersible and Cationic Agent Emulsified Asphalt SFT-I for Drilling Fluid 
 General introduction 
 Water dispersible and cationic agent emulsified asphalt SFT-I is obtained after asphalt is sulfonated ,cationic agent is modified and then get them emulsified . It has the characteristics of small common dosage,excellent anti-caving effect,high temperature resistance, highly efficient filtration loss lowering effect. 
 Property Index 
  Items 
 Index  
 Appearance 
 Dark free flowing powder 
 pH 
 8.0~12.0 
 Moisture ,% 
 ≤12.0 
 HTHP,mL/30min 
 ≤25.0 
 Relative expansion rate of reduction,% 
 ≥35.0 
 Foaming rate ,% 
 ≤10.0 
 Features 
 1. It has excellent anti-caving effect and can keep borehole regular. 
 2. Improve mud cake quality and lower filtration loss. 
 3. Enhance the ratio of yield value to plastic viscosity, effectively improve the ability of cuttings carrying, achieving the best effect of borehole cleaning. 
 4. Good high temperature resistance ,suitable in deep and ultra deep well. 
 5. Good compatibility with polymer drilling fluid system. 
 6. Improve lubricity of mud cake . 
 7. Common dosage is 1-3%. 
 Notes 
 Stored in a dry and ventilated place and kept off rain and sun. 
 Package 
 It is packed in complex kraft paper sacks (three-in-one) with waterproof plastics as lining.(Net weight 25kg per sack). 
   
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