High-Temp & Salt-Resistant Fluid Loss Reducer

Solving severe fluid loss in high-salt/high-gypsum wells.
RSTF resists 160°C+ and 15% salt+1% gypsum contamination, reduces HTHP fluid loss by 36%-67%, improves mud cake quality.
Ideal for water-based drilling fluids in complex salinity formations.

Main Advantage & Solution

1: Salt/gypsum contamination causes excessive HTHP fluid loss;
Solution: Strong resistance to 15% NaCl + 1% gypsum composite contamination, stable fluid loss control in high-mineralization mud.
2: High temperature (≥160°C) degrades additive performance;
Solution: Excellent thermal stability, maintains efficiency after 16h rolling at 160°C.
3: Mud cake thickening leads to wellbore sticking;
Solution: Reduces filter cake thickness by 50%, forms compact and smooth mud cake to avoid downhole accidents.

Parameter	Specification	Test Data/Note
Appearance	Dark brown powder	Visual inspection compliant
Loss on Drying	≤15.0%	Meets storage stability requirements
HTHP Fluid Loss (160°C,16h)	≤45.0ml	15% salt+1% gypsum condition
Applicable Temperature	80°C – 180°C	Optimal performance at ≥100°C
Recommended Dosage	1% – 5%	Higher temperature requires lower dosage
Compatibility	All water-based drilling fluids	No conflict with other additives

High-salt/high-gypsum formation drilling

Medium-deep well (3000-5000m) HTHP fluid loss control

Water-based mud systems with complex salinity (freshwater/saltwater/gypsum mud)

Oilfield drilling with leakage risks after cement plug drilling

Field-proven in multiple oilfields, verified 36%-67% HTHP fluid loss reduction
Strict quality control: 100% HTHP rolling test before delivery
Bulk production capacity: 5000+ tons/year, support large-scale oilfield projects
Customizable formula for extreme salinity (≥20% salt) conditions