Introduction
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DYLQ-1A is a sulfonated asphalt (sodium salt) used in water-based drilling fluids (WBM) as a multifunctional additive for shale inhibition, wellbore stabilization, and fluid-loss / filter-cake control. It provides emulsifying and dispersing behavior that helps stabilize troublesome shales and improves the overall condition of the circulating system. DYLQ-1A is typically applied in moderate-temperature drilling intervals and should be verified by lab testing when used in high-salinity / high-calcium environments..

Applications / Functions
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• Stabilizes water-sensitive shales and reduces hydration / dispersion of cuttings

• Helps reduce HTHP/API filtration and improves mud-cake quality

• Contributes to smoother drilling by reducing torque & drag tendency in sticky intervals

• Supports system stability in a wide range of common WBM formulations

Advantages
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• Multi-functional: combines inhibition + filtration control + system stabilization

• Helps form a thin, tenacious filter cake to reduce filtrate invasion

• Useful for troublesome shale / sloughing formations where stability is critical

• Compatible with common WBM treatment packages (optimize by lab testing)

Recommended Treatment
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Typical dosage: (optimize based on mud type, salinity/hardness, temperature, and lubrication target)

• 1–4%

Package
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• 25 kg sack

• Custom packaging available upon request