Introduction
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DYJ-501 / DYJ-502 is an environmentally considerate, resin-based fluid-loss reducer produced from biomass-derived raw materials (e.g., agricultural residues). With a multi-branched structure and multiple adsorption sites, it helps deliver strong API/HTHP fluid-loss control while providing a non-sticky, flow-adjusting effect for more stable mud performance.

Grades & Temperature Rating
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• DYJ-501 — up to 180°C (356°F); strong fluid-loss reduction with flow-adjusting effect

• DYJ-502 — up to 200°C (392°F); enhanced high-temperature performance for deeper/hotter intervals

Applications / Functions
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• Provides strong fluid-loss control (API/HTHP) and supports a tight filter cake

• Helps improve mud flow behavior (flow-adjusting) and supports stable rheology

• Supports performance in high-salinity environments (optimize dosage by testing)

• Designed for WBM systems requiring high-temperature filtration control

Advantages
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• Biomass-derived resin structure with multi-site adsorption for reliable filtration control

• Non-sticky / flow-adjusting profile supports cleaner handling and stable hydraulics

• Suitable for a wide range of water-based drilling fluid formulations (lab verification recommended)

Recommended Treatment
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Typical dosage (optimize based on solids, salinity and target filtration):

• 1–5%.

 (lab verification recommended for best selection between 501 and 502).

Package
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• 25 kg sack

• Custom packaging available upon request