Introduction
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DYDF-L is a modified starch fluid-loss control additive for water-based drilling / completion fluids, developed for applications where reservoir protection and stable filtration control are required. It provides effective fluid-loss reduction while helping adjust flow pattern / rheology, and features natural degradability to help minimize long-term formation damage. DYDF-L is designed for stable performance at temperatures up to 140°C (284°F) and delivers reliable results in brine systems with good salt resistance.

Applications / Functions
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• Controls fluid loss in water-based drilling and completion fluids

• Helps form a stable filter cake, reducing filtrate invasion into permeable zones

• Supports reservoir protection by helping reduce solids/filtrate damage risk

• Assists with rheology / flow pattern adjustment for stable hydraulics

Advantages
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• Temperature rating up to 140°C (284°F) with good thermal stability

• Salt resistant, suitable for common freshwater / seawater / brine systems

• Naturally degradable profile supports minimal reservoir damage objectives

• Practical handling as a free-flowing powder with good field mixability

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

• 3.5–10.5 ppb (10–30 kg/m³)

Package
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• 25 kg sack (composite bag)

• Custom packaging available upon request